Rotary Joints

Series H – US Catalog

NPT Threads
Rotary Joints Series H

Standard series H and HW are designed up to

Nominal Diameter 4’’ (100 mm) to accommodate
transfer of water, steam and thermal oil under
temperature, rotation and pressure.
The fortified designs HWA, HWB, HWX are designed
for higher speeds, higher loads and bigger sizes.
A flexible modular system with housing flange and
gasket connections, which can be subsequently
modified.
Operating manuals are available at
www.maieramerica.com or directly from our
company. Our sales staff will be happy to provide
you with user identification and password. After
placing an order you will find this information on
the packing list.

Standard Series

Housing made of ductile cast iron, cover and Radial and axial housing connection with right
rotor made of chrome steel, rotors for Nominal hand NPT thread as well as with flange connec-
Diameter 2 1/2’’ (65 mm) and above made of tions available.
carbon steel, sealing face made of stainless
steel. High temperature resistant spring made We recommend using flange connections for
of stainless steel. thermal oil.
Screw thread for fixed inner pipe is always
Sealing ring of compression-loaded wear-resistant right handed, even when thread on rotor is
graphite carbon. Due to its design, it is shatter- left handed.
proof under high pressure. Series HW with
metal impregnated graphite carbon, is especially Rotation of the housing is prevented by means
suitable for thermal oil and for considerably of the anti-rotating fork on the cover, where
higher pressures, temperatures and speeds. The the locking bolt engages. Thermal expansion of
bearing is secured against rotation. Slide bushing the roller and wear of seals and bearing cause an
is used as gap seal for rotating inner pipe. There is axial displacement of the housing (away from
a wear indicator for the sealing ring at the rotor. the roller). Anti-rotation device, hose connection
and inner pipe must not impede this axial dis-
Easy to repair. Maintenance-free, no relubrication. placement. Otherwise the rotary joint will not
operate or seal properly.
Connection to rotating pressurized system by
means of:
- Standardized connecting piece with right-hand
or left-hand male thread NPT.
BSP threads (ISO228) available - see European
catalog D14507e.
- K flange with conical inner ring – quick
disconnect (must be ordered separately).

2
The fortified designs HWA, HWB, HWX are

More robust
- Greater distance between bearings, double-
sized cover bushing, two large bearings from
Nominal Diameter 3’’ (75 mm) and above.
- Anti-rotation device between the bearings
ensures low moment of friction.
- Housing flange connection is sealed with a
gasket, no soldering.

Faster
- Up to 50 % higher speed possible than
standard series.

More flexible
- Modular system: please specify required
position when placing the order.
- Housing flanges can be screwed in later.

The fortified designs are equipped as follows:

Housing of ductile cast iron, HWA Nominal There are numerous designs available:
Diameter 4’’ (100 mm) and above is made of - HW1 -780 and HWA, B, X2 -780. Based on
carbon steel in welded design. standard basic design (HW 1) and on fortified
design (HWA, B, X), however suitable for
Rotor of stainless steel 316 Ti (1.4571) or PVD higher loads with rotors made of stainless steel
coated steel. All other steel parts in stainless steel. 316 Ti (1.4571) or PVD coated steel, with screw
- Metal-impregnated sealing ring, suitable for flanges, sealed with gasket, ANSI 300 lbs.
high pressure. - HWX for stationary inner pipe, right-hand
- Housing bearing secured against rotation. thread.
- Connection to the rotating pressurized system - HWB for rotating inner pipe, bearing bush
by means of K-flange and conical inner ring rotating with rotor, no wear. Gap seal, suitable
(quick disconnect). for liquids, low pressure loss between flow
- Radial and axial housing connections with and return.
right-hand thread NPT. As an option, - HWA for rotating inner pipe, bearing bush
Nominal Diameter 1 1/4’’ - 4’’ (32-100 mm) rotating with rotor, no wear. Carbon bearing
with screw flange and gasket, ANSI 300 lbs; with steel jacket, sealed against housing via
Nominal Diameter 4’’ - 12’’ (100-300 mm) with O-ring.
welded flanges ANSI 300 lbs. For Nominal Rotor bushing sealed against inner pipe via
Diameter 1/2’’ - 1’’ (15-25 mm), we offer flexible O-ring. Suitable for steam and high pressure
metal hoses sealed with a gasket, since housing difference between inlet and outlet.
flanges would be too heavy for this purpose. HWA for big Nominal Diameter > 4’’ (100 mm)
Rotation of the housing is prevented by means in welded design.
of the anti-rotating fork at the housing.
- From Nominal Diameter 4’’ (100 mm and
above), the unit weight is to be partially
supported by means of the housing lug,
where the locking bolt engages.
3
Application data
Series H HW HW
Design 2, R2, 3 2, R2, 3 X2, A2
Nominal diameter in inch 1/2...4 1/2...4 11/4...4

Medium Water Thermal Water Thermal Water

Steam oil Steam oil
Temperature min...max °F 14...428 14...572 14...446 14...572 14...446
Pressure PN min...max psi 12...290 12...145 12...406 12...145 12...406
Speed max. min–1 28.200 56.400 56.400 56.400 84.600
(DN x PN) (DN x PN) (DN x PN) (DN x PN) (DN x PN)
Overspeed limitation
nominal diameters DN in inch 1/2 3/4 1 11/4
Speed max.min–1 470 440 425 390
*For DN 8" + 12" max. 392° F, 232 psi. Series H3 with vacuum breaker. Designs for higher values and media upon request.
The combination of maximum values should be avoided.

Ordering instructions Example: H W X 2 32 K –780

H Series
W High-performance sealing ring, metal-impregnated
Design for
X stationary inner pipe
R rotating inner pipe with slide bushing and gap seal in the housing
B rotating inner pipe with gap seal between flow and return
A rotating inner pipe with complete sealing between
flow and return
Number of housing connections
1 for one way flow design
2 for two way flow design
3 for two way flow design with vacuum breaker
Nominal diameter (=^ dimension A)
1/2, 3/4,
1, 11/4, 11/2, 2, 2 1/2, 3, 3 1/2, 4, 5, 6, 8, 12 inch
15, 20, 25, 32, 40, 50, 65, 75, 80, 100, 125, 150, 200, 300 mm
Rotor connection
R for right-hand thread
L for left-hand thread
K for K flange Adapters for other threads are available, upon request.

Consecutive numbers for special designs; numbering by factory.

Exceptions: variant -780 with slip flanges.

4
 HW HW -760 HW -760 HW
B2 X2, A2 B2 1
1 1/4...4 1 1/4...4 1 1/4...4 5...12
A2
4...12
Thermal Water Thermal Water Thermal Water Thermal
oil Steam oil Steam oil Steam oil
14...572 14...446 14...572 14...446 14...572 14...410 * 14...572
12...145 12...406 12...145 12...406 12...145 12...290* 12...145
84.600 56.400 56.400 56.400 56.400 84.600 84.600
(DN x PN) (DN x PN) (DN x PN) (DN x PN) (DN x PN) (DN x PN) (DN x PN)

1 1/2 2 2 1/2 3 3 1/2 4 5 6 8 10

370 325 265 250 250 180 100 80 60 30

Assembly by modular system for HWX – HWB – HWA DN 11/4 - 4

When placing the order, please copy this page, fill in the blanks and send it by fax to + 1-770-409 0069
or as PDF file to info@maieramerica.com
View A Anti-rotation
Anti-rotation device A device A

View A

Connection C Connection B Connection B

Connection C

Connection Anti-rotation Connection

B device A C
Customer 06:00 03:00 01:30
09:00 03:00
12:00 04:30
Order number 06:00
07:30
Orientation of connection B always in 6 o’clock position. Line of sight to
the rotary joint: view A (from the rear). 09:00

Please check required positions of anti-rotation device A and connection C. 10:30

The ordered rotary joint will be assembled according to these instructions. 12:00

5
 H2 + HW2 DN 1/2 - 4

for two way flow of a medium designed for non-rotating inner pipe
for mono flow operation C port is plugged

K2
Flanges see page 16

DN 1/4 3/4 1 11/4 11/2 2 21/2 31/2 4

Type H 215 R-700 H 220 R-700 H 225 R-700 H 232 R-700 H 240 R-700 H 250 R-700 H 265 R-700 H 280 R-700 H 2100 R-700
Order-No. 1108053-700 1108133-700 1108213-700 1108353-700 1108453-700 1108553-700 1108654-700 1108753-700 1108853-700
Type H 215 L-700 H 220 L-700 H 225 L-700 H 232 L-700 H 240 L-700 H 250 L-700 H 265 L-700 H 280 L-700 H 2100 L-700
H

Order-No. 1108054-700 1108134-700 1108214-700 1108354-700 1108454-700 1108554-700 1108655-700 1108754 -700 1108854-700
Type H 215 K-700 H 220 K-700 H 225 K-700 H 232 K-700 H 240 K-700 H 250 K-700 H 265 K-700 H 280 K-700 H 2100 K-700
Order-No. 1108055-700 1108135-700 1108215-700 1108355-700 1108455-700 1108555-700 1108656-700 1108755-700 1108855-700
Type HW 215 R-700 HW 220 R-700 HW 225 R-700 HW 232 R-700 HW 240 R-700 HW 250 R-700 HW 265 R-700 HW 280 R-700 HW 2100 R-700
Order-No. 1108068 -700 1108148 -700 1108167 -700 1108363 -700 1108468 -700 1108568 -700 1108668 -700 1108768 -700 1108868 -700
Type HW 215 L-700 HW 220 L-700 HW 225 L-700 HW 232 L-700 HW 240 L-700 HW 250 L-700 HW 265 L-700 HW 280 L-700 HW 2100 L-700
HW

Order-No. 1108069 -700 1108149-700 1108168-700 1108364-700 1108469-700 1108569-700 1108669-700 1108769-700 1108869-700
Type HW 215 K-700 HW 220 K-700 HW 225 K-700 HW 232 K-700 HW 240 K-700 HW 250 K-700 HW 265 K-700 HW 280 K-700 HW 2100 K-700
Order-No. 1108070-700 1108150-700 1108170-700 1108365-700 1108470-700 1108570-700 1108670-700 1108770-700 1108870-700

ØA 0.512 0.728 0.945 1.26 1.457 1.89 2.362 3.189 3.858

B (NPT) 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 4
C (NPSC) 1/8 1/4 3/8 1/2 3/4 1 11/4 1 1/2 2
D (NPT) 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 1/2 4
E 5.315 6.024 7.047 8.071 9.055 10.709 12.756 15.472 18.701
F 4.488 5.079 5.906 6.772 7.48 8.858 10.394 12.598 15.079
G 3.622 3.937 4.37 4.843 5.157 5.748 6.496 7.992 9.567
GB 0.472 0.472 0.551 0.63 0.63 0.709 0.787 0.866 1.024
H 0.276 0.315 0.315 0.394 0.433 0.512 0.709 0.709 0.984
ØJ 3.15 3.465 3.819 4.488 4.882 5.669 7.165 8.661 10.236
ØK 0.984 1.181 1.378 1.772 2.047 2.598 3.346 4.213 4.646
ØK2 0.807/0.809 1.017/1.019 1.269/1.272 1.612/1.614 1.870/1.872 2.320/2.322 2.836/2.838 3.931/3.933 4.427/4.429
L 1.22 1.417 1.575 1.89 2.087 2.441 3.15 3.937 4.528
M 1.339 1.654 1.89 2.165 2.559 3.15 3.543 4.528 5.315
N 2.047 2.244 2.362 2.638 2.874 3.228 3.661 4.764 5.63
O 0.374 0.437 0.437 0.5 0.5 0.626 0.748 1 1
R 1.811 1.969 2.126 2.559 2.756 3.189 3.976 4.764 5.630
S 0.472 0.472 0.551 0.630 0.630 0.709 0.787 0.866 1.024
T 0.276 0.315 0.354 0.394 0.472 0.512 0.591 0.787 0.866
U* 0.906 0.906 1.102 1.299 1.417 1.693 1.890 2.126 2.598
V 1.102 1.260 1.378 1.772 1.969 2.362 2.756 3.150 3.543
SW 0.866 1.063 1.181 1.614 1.811 2.362 2.953 3.740 4.331
Z1 * 4.429 5.075 5.992 6.728 7.531 8.878 10.551 12.874 15.724
Weight (Ibs) 3.5 5.1 7.1 11.7 15.2 24.5 46.9 81.8 134.5

* approx. engagement depth (wrench tight)

6
 HR2 + HWR2 DN 1/2 - 4

for two way flow of a medium designed for rotating inner pipe

K2
Flanges see page 16

DN 1/2 3/4 1 11/4 11/2 2 21/2 31/2 4

Type HR 215 R-700 HR 220 R-700 HR 225 R-700 HR 232 R-700 HR 240 R-700 HR 250 R-700 HR 265 R-700 HR 280 R-700 HR 2100 R-700
Order-No. 1108056-700 1108136-700 1108219-700 1108359-700 1108459-700 1108556-700 1108657-700 1108756-700 1108856-700
Type HR 215 L-700 HR 220 L-700 HR 225 L-700 HR 232 L-700 HR 240 L-700 HR 250 L-700 HR 265 L-700 HR 280 L-700 HR 2100 L-700
H

Order-No. 1108057-700 1108137-700 1108220-700 1108360-700 1108460-700 1108557-700 1108658-700 1108757-700 1108857-700
Type HR 215 K-700 HR 220 K-700 HR 225 K-700 HR 232 K-700 HR 240 K-700 HR 250 K-700 HR 265 K-700 HR 280 K-700 HR 2100 K-700
Order-No. 1108058-700 1108138-700 1108224-700 1108375-700 1108463-700 1108560-700 1108659-700 1108761-700 1108861-700
Type HWR 215 R-700 HWR 220 R-700 HWR 225 R-700 HWR 232 R-700 HWR 240 R-700 HWR 250 R-700 HWR 265 R-700 HWR 280 R-700 HWR 2100 R-700
Order-No. 1108071-700 1108151-700 1108171-700 1108369-700 1108471-700 1108571-700 1108671-700 1108771-700 1108871-700
Type HWR 215 L-700 HWR 220 L-700 HWR 225 L-700 HWR 232 L-700 HWR 240 L-700 HWR 250 L-700 HWR 265 L-700 HWR 280 L-700 HWR 2100 L-700
HW

Order-No. 1108072-700 1108152-700 1108172-700 1108370-700 1108472-700 1108572-700 1108672-700 1108772-700 1108872-700
Type HWR 215 K-700 HWR 220 K-700 HWR 225 K-700 HWR 232 K-700 HWR 240 K-700 HWR 250 K-700 HWR 265 K-700 HWR 280 K-700 HWR 2100 K-700
Order-No. 1108073-700 1108153-700 1108176-700 1108376-700 1108476-700 1108573-700 1108673-700 1108773-700 1108873-700

ØA 0.512 0.728 0.945 1.26 1.457 1.89 2.362 3.189 3.858

B (NPT) 1/2 3/4 1 1 1/4 1 1/2 2 2 3 4
C (NPSC) 1/8 1/4 3/8 1/2 3/4 1 1 1/4 1 1/2 2
D (NPT) 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 1/2 4
E 5.315 6.024 7.047 8.071 9.055 10.709 12.756 15.472 18.701
F 4.488 5.079 5.906 6.772 7.48 8.858 10.394 12.598 15.079
G 3.622 3.937 4.37 4.843 5.157 5.748 6.496 7.992 9.567
GB 0.472 0.472 0.551 0.63 0.63 0.709 0.787 0.866 1.024
H 0.276 0.315 0.315 0.394 0.433 0.512 0.709 0.709 0.984
ØJ 3.15 3.465 3.819 4.488 4.882 5.669 7.165 8.661 10.236
ØK 0.984 1.181 1.378 1.772 2.047 2.598 3.346 4.213 4.646
ØK2 0.807/0.809 1.017/1.019 1.269/1.272 1.612/1.614 1.870/1.872 2.320/2.322 2.836/2.838 3.931/3.933 4.427/4.429
L 1.22 1.417 1.575 1.89 2.087 2.441 3.15 3.937 4.528
M 1.339 1.654 1.89 2.165 2.559 3.15 3.543 4.528 5.315
N 2.047 2.244 2.362 2.638 2.874 3.228 3.661 4.764 5.63
O 0.374 0.437 0.437 0.5 0.5 0.626 0.748 1 1
R 1.811 1.969 2.126 2.559 2.756 3.189 3.976 4.764 5.63
S 0.472 0.472 0.551 0.63 0.63 0.709 0.787 0.866 1.024
T 0.276 0.315 0.354 0.394 0.472 0.512 0.591 0.787 0.866
U* 0.427 0.446 1.53 0.55 0.55 0.567 0.807 0.946 0.969
ØW 0.374/0.373 0.499/0.498 0.624/0.623 0.749/0.748 0.999/0.998 1.249/1.247 1.499/1.497 1.749/1.747 2.251/2.249
X 0.591 0.591 0.591 0.591 0.984 0.984 1.181 1.181 1.575
Z 4.606 5.079 5.984 6.693 7.795 9.331 11.181 13.504 16.732
SW 0.866 1.063 1.181 1.614 1.811 2.362 2.953 3.740 4.331
Weight (Ibs) 3.5 5.1 7.1 11.7 15.2 24.5 46.9 81.8 134.5

* approx. engagement depth (wrench tight)

7
H3 DN 1 - 1 1/4

for two way flow of a medium designed for non-rotating inner pipe, with vacuum breaker

K2
Flanges see page 16

DN 1 11/4

Type H 325 R-700 H 332 R-700

Order-No. 1108216-700 1108356-700
Type H 325 L-700 H 332 L-700
Order-No. 1108217-700 1108357-700
Type H 325 K-700 H 332 K-700
Order-No. 1108218-700 1108358-700
ØA 0.945 1.260
B (NPT) 3/4 1
C (NPSC) 3/8 1/2

D (NPT) 1 1 1/4
E 7.047 8.071
F 5.906 6.772
G 4.370 4.843
GB 0.551 0.630
H 0.315 0.394
ØJ 3.819 4.488
ØK 1.378 1.772
Ø K2 1.269/1.272 1.612/1.614
L 1.575 1.890
M 1.890 2.165
N 2.362 2.638
O 0.437 0.500
Q 2.520 2.717
R 2.126 2.559
S 0.551 0.630
T 0.354 0.394
U* 0.530 0.550
V 1.378 1.772
Z1 * 5.992 6.728
SW 1.181 1.614
Weight (Ibs) 7.9 12.6
*approx. engagement depth (wrench tight)

8
HW1 DN 1 1/4 - 4 series -780

for one way flow of a medium

Flanges see page 16

ANSI 300 lbs

FS

DN 1 1/4 1 1/2 2 21/2 31/2 4

Type HW 132 K-780 HW 140 K-780 HW 150 K-780 HW 165 K-780 HW 180 K-780 HW 1100 K-780
Order-No. 1108368-780 1108467-780 1108567-780 1108667-780 1108767-780 1108867-780

ØA 1.260 1.457 1.890 2.362 3.189 3.858

B G 1 1/4 G 1 1/2 G2 G 2 1/2 G3 G4
F 6.772 7.480 8.858 10.394 12.598 15.079
M 5.315 5.709 6.496 7.283 8.268 9.843
FS 1 1/4 1 1/2 2 2 1/2 3 4
Weight (Ibs) 18.7 23.2 35.3 59.5 101.4 163.2
All other dimensions see page 6.

9
HWX2 DN 1 1/4 - 4

for two way flow of a medium designed for non-rotating inner pipe

K2
Flanges see
page 16

DN 11/4 11/2 2 21/2 3 31/2 4

Type HWX 232 K-700 HWX 240 K-700 HWX 250 K-700 HWX 265 K-700 HWX 275 K-700 HWX 280 K-700 HWX 2100 K-700
Order-No. 1108385-700 1108485-700 1108585-700 1108685-700 1108705-700 1108785-700 1108885-700

ØA 1.260 1.457 1.890 2.362 2.638 3.189 3.858

B (NPT) 1 1 1/4 1 1/2 2 2 1/2 2 1/2 3
C (NPT) 1 1 1/4 1 1/2 2 2 1/2 2 1/2 3
E 10.669 12.323 13.661 15.827 21.063 21.260 23.976
F 4.724 5.197 6.024 7.008 10.630 10.827 12.008
G 7.205 8.051 9.055 10.709 14.961 15.157 16.693
GB 0.630 0.630 0.709 0.787 0.866 0.866 1.024
H 0.531 0.630 0.630 0.709 0.709 0.709 0.984
J 5.906 6.260 7.126 8.583 10.787 10.787 11.890
Ø K2 1.612/1.614 1.870/1.872 2.320/2.322 2.836/2.838 3.434/3.437 3.931/3.933 4.427/4.429
L 2.165 2.283 2.717 3.346 4.173 4.173 4.724
M 2.756 2.953 3.425 4.055 5.118 5.118 5.709
N 4.646 5.079 5.906 7.047 10.512 10.709 11.772
O 0.500 0.500 0.626 0.748 1.181 1.000 1.000
P 4.921 5.945 6.299 7.087 8.268 8.268 9.449
R 3.858 4.331 4.764 5.669 6.772 6.772 7.638
ØS 0.630 0.630 0.709 0.787 0.866 0.866 1.024
T 0.512 0.591 0.630 0.709 0.984 0.984 1.024
V 0.954 1.197 1.541 1.780 2.253 2.253 2.703
W (NPSC) 3/4 1 1 1/4 1 1/2 1 1/2 2 2 1/2
Z ± 0.15 8.08 9.071 10.871 12.686 17.646 17.843 20.105
NT 0.906 1.201 1.201 1.378 1.378 1.378 1.693
Weight (lbs) 26.5 36.4 48.5 81.6 160.9 160.9 202.9

10
HWB2 DN 1 1/4 - 4

for two way flow of a medium designed for rotating inner pipe

K2
Flanges see
page 16

DN 11/4 11/2 2 21/2 3 31/2 4

Type HWB 232 K-700 HWB 240 K-700 HWB 250 K-700 HWB 265 K-700 HWB 275 K-700 HWB 280 K-700 HWB 2100 K-700
Order-No. 1108402-700 1108482-700 1108577-700 1108677-700 1108702-700 1108778-700 1108902-700

ØA 1.26 1.457 1.89 2.362 2.638 3.189 3.858

B (NPT) 1 11/4 1 1/2 2 2 1/2 2 1/2 3
C (NPT) 1 11/4 1 1/2 2 2 1/2 2 1/2 3
E 10.669 12.323 13.661 15.827 21.063 21.260 23.976
F 4.724 5.197 6.024 7.008 10.630 10.827 12.008
G 7.205 8.051 9.055 10.709 14.961 15.157 16.693
GB 0.630 0.630 0.709 0.787 0.866 0.866 1.024
H 0.531 0.630 0.630 0.709 0.709 0.709 0.984
J 5.906 6.260 7.126 8.583 10.787 10.787 11.890
Ø K2 1.612/1.614 1.870/1.872 2.320/2.322 2.836/2.838 3.434/3.437 3.931/3.933 4.427/4.429
L 2.165 2.283 2.717 3.346 4.173 4.173 4.724
M 2.756 2.953 3.425 4.055 5.118 5.118 5.709
N 4.646 5.079 5.906 7.047 10.512 10.709 11.772
O 0.500 0.500 0.626 0.748 1.181 1.000 1.181
P 4.921 5.945 6.299 7.087 8.268 8.268 9.449
R 3.858 4.331 4.764 5.669 6.772 6.772 7.638
ØS 0.630 0.630 0.709 0.787 0.866 0.866 1.024
T 0.512 0.591 0.630 0.709 0.984 0.984 1.024
ØW 1.002/1.004 1.252/1.254 1.502/1.504 1.752/1.754 1.752/1.754 2.252/2.254 2.753/2.755
X 1.181 1.181 1.181 1.575 1.575 1.575 1.969
Z 6.772 7.480 8.858 10.236 14.646 14.843 16.496
NT 0.906 1.201 1.201 1.378 1.378 1.378 1.693
Weight (Ibs) 26.5 36.4 48.5 81.6 161 161 202.9

11
HWA2 DN 1 1/4 - 4

for two way flow of a medium designed for rotating inner pipe

K2

Flanges
see page 16

DN 1 1/4 1 1/2 2 2 1/2 3 3 1/2 4

Type HWA 232 K-700 HWA 240 K-700 HWA 250 K-700 HWA 265 K-700 HWA 275 K-700 HWA 280 K-700 HWA 2099 K-700
Order-No. 1108390-700 1108490-700 1108590-700 1108690-700 1108710-700 1108790-700 1108880-700

ØA 1.260 1.457 1.890 2.362 2.638 3.189 3.858

B (NPT) 1 1 1/4 1 1/2 2 2 1/2 2 1/2 3
C (NPT) 1 1 1/4 1 1/2 2 2 /2
1 2 1/2 3
E 10.669 12.323 13.661 15.827 21.063 21.260 23.976
F 4.724 5.197 6.024 7.008 10.630 10.827 12.008
G 7.205 8.051 9.055 10.709 14.961 15.157 16.693
GB 0.630 0.630 0.709 0.787 0.866 0.866 1.024
H 0.531 0.630 0.630 0.709 0.709 0.709 0.984
J 5.906 6.260 7.126 8.583 10.787 10.787 11.890
Ø K2 1.612/1.614 1.870/1.872 2.320/2.322 2.836/2.838 3.434/3.437 3.931/3.933 4.427/4.429
L 2.165 2.283 2.717 3.346 4.173 4.173 4.724
M 2.756 2.953 3.425 4.055 5.118 5.118 5.709
N 4.646 5.079 5.906 7.047 10.512 10.709 11.772
O 0.500 0.500 0.626 0.748 1.181 1.000 1.000
P 4.921 5.945 6.299 7.087 8.268 8.268 9.449
R 3.858 4.331 4.764 5.669 6.772 6.772 7.638
ØS 0.630 0.630 0.709 0.787 0.866 0.866 1.024
T 0.512 0.591 0.630 0.709 0.984 0.984 1.024
ØW 1.002/1.004 1.252/1.254 1.502/1.504 1.752/1.754 1.752/1.754 2.252/2.254 2.753/2.755
X 1.181 1.181 1.181 1.575 1.575 1.575 1.969
Z 6.772 7.480 8.858 10.236 14.646 14.843 16.496
NT 0.906 1.201 1.201 1.378 1.378 1.378 1.693
Weight (Ibs) 26.5 36.4 48.5 81.6 161 161 202.9

12
HWX2 + HWB2 + HWA2 DN 1 1/2 - 4 series -780

with flange connections

Flanges see page 16

DN 1 1/4 1 1/2 2 2 1/2 3 3 1/2 4

Type HWX 232 K-780 HWX 240 K-780 HWX 250 K-780 HWX 265 K-780 HWX 275 K-780 HWX 280 K-780 HWX 2100 K-780
Order-No. 1108385-780 1108485-780 1108585-780 1108685-780 1108705-780 1108785-780 1108885-780
Type HWB 232 K-780 HWB 240 K-780 HWB 250 K-780 HWB 265 K-780 HWB 275 K-780 HWB 280 K-780 HWB 2100 K-780
Order-No. 1108402-780 1108482-780 1108577-780 1108677-780 1108702-780 1108778-780 1108902-780
Type HWA 232 K-780 HWA 240 K-780 HWA 250 K-780 HWA 265 K-780 HWA 275 K-780 HWA 280 K-780 HWA 2099 K-780
Order-No. 1108390-780 1108490-780 1108590-780 1108690-780 1108710-780 1108790-780 1108880-780

ØA 1.260 1.457 1.890 2.362 2.638 3.189 3.858

B BSP 1 BSP 11/4 BSP 11/2 BSP 2 BSP 21/2 BSP 21/2 BSP 3
C BSP 1 BSP 11/4 BSP 11/2 BSP 2 BSP 21/2 BSP 21/2 BSP 3
F 4.724 5.197 6.024 7.008 10.630 10.827 12.008
M 6.358 6.634 7.185 7.953 9.173 9.173 10.610
P 4.921 5.945 6.299 7.087 8.268 8.268 9.449
FS 1 1 1/4 1 1/2 2 2 1/2 2 1/2 3
Weight (Ibs) 35.3 48.5 63.9 102.5 186.3 186.3 235.9

All other dimensions see pages 10, 11 and 12.

13
HW1 DN 5 - 12

for one way flow of a medium

Adjustable by 180°

K2

ANSI 300 lbs

Flanges see page 16

DN 5 6 8 12

Type HW 1125 K-700 HW 1150 K-700 HW 1200 K-700 HW 1300 K-700

Order-No. 1104001-700 1104101-700 1104201-700 110440-700

ØA 4.724 5.709 7.677 11.732

B 5 6 8 12
E 25.709 27.795 34.685 51.732
F 14.567 15.472 19.606 27.559
G 16.142 17.323 22.047 33.071
H 0.787 0.984 0.984 1.378
ØJ 12.559 13.622 16.535 23.425
ØK 2 5.903/5.905 7.084/7.086 9.052/9.055 13.776/13.779
L 7.205 8.268 10.433 15.157
M 9.843 10.157 12.598 19.134
N 16.142 16.260 23.346 33.583
O 1.378 1.575 1.772 2.362
R 11.811 13.780 15.748 27.559
ØS 0.984 1.575 1.575 1.969
T 0.787 0.984 0.984 1.575
SH 1.220 1.811 1.811 2.283
TA 8.110 9.646 12.008 17.126

14
HWA2 DN 4 - 12

for two way flow of a medium designed for rotating inner pipe

Adjustable by 180°

K2
ANSI 300 lbs

Flanges see page 16

DN 4 5 6 8 12

Type HWA 2100 K-700 HWA 2125 K-700 HWA2150K-700 HWA 2200 K-700 HWA 2300 K-700
Order-No. 1108890-700 1104002-700 1104102-700 1104202-700 1104402-700

ØA 3.858 4.724 5.709 7.677 11.732

B 3 4 5 6 10
C 3 4 5 6 10
E 32.087 36.535 40.551 50.630 75.197
F 12.913 14.173 15.512 19.606 27.874
G 14.370 16.339 17.520 22.441 33.071
H 0.787 0.787 0.984 0.984 1.378
ØJ 10.551 12.559 13.622 16.535 23.425
ØK 2 4.486 / 4.488 5.903/5.905 7.084/7.086 9.052/9.055 13.776/13.779
L 5.984 7.205 8.268 10.433 15.157
M 8.268 9.843 10.157 11.969 19.134
N 14.173 16.142 16.260 23.346 33.583
O 1.181 1.378 1.575 1.772 2.362
P 15.276 17.717 19.764 25.118 38.465
R 9.843 11.811 13.780 15.748 27.559
ØS 0.984 0.984 1.575 1.575 1.969
T 0.787 0.787 0.984 0.984 1.575
ØW 2.954 / 2.953 3.466 / 3.465 4.333 / 4.331 5.317 / 5.316 8.467 / 8.465
X 3.150 3.150 3.150 3.937 5.906
Z 20.787 23.307 25.000 31.811 46.024
SH 1.220 1.220 1.811 1.811 2.283
TA 4.606 8.110 9.646 12.008 17.126

15
Journal Flanges for K Rotor Connection

DN K-flange Order-No. Inner ring Order-No. Order-No. Ø A Ø AD Ø LK AZ x Ø KD Ø ID KB ØK O EB

Gasket Ø DB
1/2 KF 15-700 1190431-700 IR 15-700 1190401-700 3512231-700 0.512 3.346 2.638 4x0.374 1.024 0.750/0.752 0.500 0.811/0.813 0.374 0.591
3/4 KF 20-700 1190432-700 IR 20-700 1190402-700 3512232-700 0.728 4.134 2.992 4x0.433 1.260 0.961/0.963 0.591 1.022/1.024 0.437 0.630
1 KF 25-700 1190433-700 IR 25-700 1190403-700 3512233-700 0.945 4.528 3.504 4x0.571 1.457 1.215/1.217 0.591 1.274/1.276 0.437 0.630
11/4 KF 32-700 1190434-700 IR 32-700 1190404-700 3512234-700 1.260 4.528 3.504 4x0.571 1.890 1.561/1.563 0.630 1.618/1.620 0.500 0.709
11/2 KF 40-700 1190435-700 IR 40-700 1190405-700 3512235-700 1.457 5.039 3.937 4x0.571 2.087 1.770/1.772 0.787 1.872/1.874 0.500 0.866
2 KF 50-700 1190436-700 IR 50-700 1190406-700 3512236-700 1.890 5.827 4.764 4x0.571 2.717 2.226/2.228 0.787 2.325/ 2.327 0.626 0.866
21/2 KF 65-700 1190437-700 IR 65-700 1190407-700 3512237-700 2.362 5.827 4.764 4x0.571 3.504 2.742/2.744 1.024 2.841/2.843 0.748 1.102
3 KF 75-700 1190440-700 IR 75-700 1190420-700 1190191-058 2.835 7.992 6.752 5x0.689 3.504 3.315/ 3.317 1.220 3.437/3.439 0.874 1.339
31/2 KF 80-700 1190438-700 IR 80-700 1190408-700 3512238-700 3.189 8.504 7.008 6x0.689 4.291 3.799/ 3.803 1.260 3.937/3.939 1.000 1.378
4 KF 100-700 1190409-700 IR 100-700 1190439-700 3512239-700 3.858 8.976 7.520 6x0.689 4.724 4.295/4.299 1.378 4.433/4.435 1.000 1.496
5 KF125-0 1190450 IR125-0 1190410 1190025 4.724 8.858 7.480 6x0.709 5.787 5.394/5.396 0.866 5.588/5.591 0.787 0.984
5 KF125-500 1190450-500 IR125-500 1190410-500 1190035 4.724 10.236 8.858 8x0.709 6.102 5.709/5.71 1.378 5.903/5.906 1.378 1.535
6 KF150-0 1190451 IR150-0 1190411 1190026 5.709 10.039 8.661 8x0.709 7.008 6.496/6.498 0.984 6.690/6.693 0.984 1.102
6 KF150-500 1190451-500 IR150-500 1190411-500 1190036 5.709 11.811 10.236 8x0.709 7.283 6.890/6.892 1.575 7.084/7.087 1.575 1.732
8 KF200-0 1190452 IR200-0 1190412 1190027 7.677 12.205 10.827 8x0.709 9.134 8.661/8.664 1.102 8.855/8.858 1.181 1.260
8 KF200-500 1190452-500 IR200-500 1190412-500 1190037 7.677 14.173 12.598 8x0.709 9.252 8.819/8.821 1.772 9.052/9.055 1.772 1.929
10 KF250-0 1190453 IR250-0 1190413 1190028 9.449 15.354 13.780 8x0.905 11.417 10.748/10.750 1.457 11.020/11.024 1.378 1.575
10 KF250-500 1190453-500 IR250-500 1190413-500 1190038 9.449 17.126 15.354 8x0.905 11.614 10.945/10.947 1.969 11.217/11.220 1.969 2.126
12 KF300-0 1190454 IR300-0 1190414 1190029 11.614 18.504 16.142 16x0.905 13.780 13.071/13.073 1.654 11.382/11.386 1.575 1.772

16
Loose Flanges for Housing Connection

Sealing with gasket 2

gaskets
The flanges consist of
a threaded piece with
male thread ISO 228,
combined with a slip
flange ANSI 300 lbs.
gasket 1
Sealing between flange
and rotary joint housing
by means of a gasket.
Suitable for HWA, HWB
and HWX.

Dimensional table for screw flanges, rated pressure 300 lbs

DN L L1 L2 L3 D1 D2 D3 D4 D5 A D6 SW Order No. Order No. Order No.
Screw-in gasket 1 gasket 2
flange
1 4.409 0.807 0.551 1.260 0.917 G1A 2.0 3.500 4.874 4 0.748 1.417 1190203-701 3502111-001 3512622
1 1/4 4.567 0.886 0.551 1.260 1.260 G 1 1/4 A 2.5 3.874 5.248 4 0.748 1.811 1190204-701 3502117-001 3512623
1 1/2 4.724 0.965 0.551 1.260 1.508 G 1 1/2 A 2.9 4.500 6.125 4 0.874 1.969 1190205-701 3502118-001 3512624
2 5.039 1.142 0.630 1.417 1.969 G2A 3.6 5.000 6.500 4 0.748 2.362 1190206-701 3502121-010 3512625
2 1/2 5.315 1.260 0.630 1.417 2.520 G 2 1/2 A 4.1 5.874 7.500 8 0.874 2.953 1190207-701 3502124-010 3512626
3 6.220 1.319 0.709 1.575 3.031 G3A 5.0 6.625 8.248 8 0.874 3.543 1190208-701 3502125-010 3512627
4 7.087 1.496 0.787 1.654 3.858 G4A 6.2 7.874 10.000 8 0.874 4.331 1190209-701 3502108-010 3512628

Maximum application data (pressure reduction factor

at higher operating temperatures considered):
– water 406 psi and 446°F
– thermal oil 145 psi bar and 572°F

Please order a gasket 2 for the connection flange,

if required.
Material: steel, painted.
Special stainless steel version available upon request.

17
Spare parts for types H / HW – DN 1/2 - 4

Spare parts H2 + HW2, HR2 + HWR2, H3

DN 1/2 3/4 1 1 1/4 1 1/2 2 2 1/4 2 1/2 4

6 Rotor R 1103063-602 1103143-602 1103227-602 1103367-602 1103467-602 1103563-602 1103643-602 1103767-602 1103867-602
7 Rotor L 1103064-602 1103144-602 1103228-602 1103368-602 1103468-602 1103564-602 1103644-602 1103768-602 1103868-602
8 Rotor K 1103065-603 1103145-603 1103229-603 1103369-603 1103469-603 1103565-603 1103637-603 1103769-603 1103869-603
13 Slide bearing x 3510502 3510504 3510506 3510501 3510509 3510512 3510514 3510514 3510523
14 Vaccuum valve - - 1190020 1190020 - - - - -
15 CU seal - - 3511962 3511962 - - - - -
20 Sealing ring 3511301 3511302 3511303 3511304 3511305 3511306 3511307 3511308 3511309
20a Sealing ring W 3510641 3510642 3510643 3510644 3510645 3510646 3510647 3510648 3510649
21 Cover bearing 3510601 3510602 3510603 3510604 3510605 3510606 3510607 3510608 3510609
22 Flat packing 3512001 3512002 3512003 3512004 3512005 3512006 3512007 3512016 3512017
23 Cover complete 1108059 1108139 1108221 1108361 1108461 1108559 1108653 1108759 1108858
24 Carbon bearing 3511341 3511342 3511343 3511344 3511345 3511346 3511347 3511348 3511349
25 Compression spring 3511616 3511617 3511618 3511619 3511620 3511621 3511622 3511626 3511627
26 Hexagon screw 3500087 3500087 3500087 3500125 3500125 3500165 3500163 3500163 3500197
27 Locking pin 3500932 3500932 3500932 3500933 3500933 3500934 3500934 3500934 3500934
28 Circlip 3500701 3500697 3500702 3500703 3500704 3500705 3500706 3500707 3500708

Please specify exact type designation when inquiring or ordering!

18
Spare parts for types HWX2 / HWB2 / HWA2 – DN 11/4 - 4

DN 1 1/4 1 1/2 2 2 1/2 3 3 1/2 4

8 Rotor 1103404-703 1103504-703 1103587-703 1103704-703 1103752-703 1103814-703 1103934-703

13 Bushing 1103387-707 1103481-707 1103581-707 1103651-707 1103755-707 1103787-707 1103888-707
16 Elbow B2, X2 1103409-704 1103509-704 1103594-704 1103709-704 1103757-704 1103819-704 1103939-704
16a Elbow A2 1103410-705 1103510-705 1103595-705 1103710-705 1103758-705 1103820-705 1103940-705
17 Thrust washer 1103392-432 1103492-377 1103613-441 1103746-419 1103792-463 1103792-463 1103921-570
20a Sealing ring W 3510644 3510645 3510646 3510647 3510648 3510648 3510649
21 Cover bushing 3510604 3510605 3510606 3510607 3511348 3511348 3511349
22 Gasket 1114193-059 1103799-419 3512013 3512018 1110669-063 1110669-063 3512355-071
23 Cover complete 1103407 1103507 1103592 1103707 1103817 1103817 1103937
24 Carbon bushing B2, X2 3511344 3511345 3511346 3511347 3511348 3511348 3511349
24a Carbon bushing A2 3511344-421 3511345-362 3511346-426 3511347-398 3511348-449 3511348-449 3511349-549
25 Compression spring 5x3511668-001 6x3511668-001 8x3511668-001 4x3511564 8x3511564 8x3511564 12x3511564
26a Hexagon screw 1 8x3500123-008 8x3500124-008 8x3500166-008 8x3500163 8x3500197 8x3500197 8x3500197
26b Hexagon screw 2 8x3500125 8x3500123-008 8x3500165 8x3500163 8x3500197 8x3500197 8x3500197
27 Locking pin B2,X2 1x3500933 1x3500933 1x3500934 1x3500934 2x3500934 2x3500934 2x3500934
27a Locking pin 1 A2 3500951-001 3500933 3500889-001 3500961-001 3500961-001 3500961-001 3500934
27b Locking pin 2 A2 – – – – 3500934 3500934 3500934
28 Circlip 3500703 3500704 3500705 3500706 3501237-001 3501237-001 3501043
30 Circlip 3501234 3501225 3501232 3501236 3501205 3501205 3501251
31 Screw plug 3x3500657 3x3500658-007 3x3500658-007 3x3500655-007 3x3500655-007 3x3500655-007 3x3500655-007
32 Sealing ring 3x3502114-001 3x3502116-001 3x3502116-001 3x3502115-001 3x3502115-001 3x3502115-001 3x3502115-001
34 O-ring 3511701 3511708 3511694 3511692 3511702 3511702 3512515
35 O-ring 3511823 3511732 3511814 3512630 3512630 3511816 3511778

Please specify exact type designation when inquiring or ordering!

19
Spare parts for type HW1 – DN 5 - 12

DN 5 6 8 12

5 Cover compl. (2x) 1104030-200 1104130-184 1104230-129 1104430-040

8 Rotor K complete 1104054-242 1104154-212 1104254-166 1104454-134
10 Butting ring 1104061-221 1104161-199 1104261-156 1104461-116
14 Anti-rotation device 1104074-231 1104174-209 1104274-163 1104447-137
16 Cover 1 1104045-244 1104145-214 1104245-168 1104445-136
17 Contact bolt 1 1103899-578 1104124-205 1104124-205 1104424-104
18 Contact bolt 2 1103899-579 1104124-206 1104124-206 1104424-106
20a Sealing ring W 3511353 3511354 3511355 3511357
21 O-ring 3512512-015 3512517-015 3511751-015 3512518-015
22 Gasket 1104075-185 1104175-178 1104275-105 3512022
23 Gasket 1190037 1104075-185 1105695-050 3512023-063
25 Compression spring 16x3511564 18x3511564 26x3511532 28x3511457
26 Screw 1 8x3500236 8x3500236 16x3500200-008 16x3500248-002
27 Screw 2 8x3500244-007 8x3500432-007 16x3500435-007 16x3500436-007
28 Cyl.head screw 2x3500410 2x3500195 2x3500410 2x3500444
29 Cyl.head screw 2x3500329-003 2x3500433-003 2x3500376-003 2x3500376-003
30 Hexagon screw 4x3500162-008 4x3500434-008 4x3500434-008 4x3500248-002
31 Hexagon nut 16x3500300 16x3500300 16x3500300 16x3500304
32 Hexagon nut 4x3500285-008 4x3500287-008 4x3500287-008 4x3500304
34 Spring washer 2x3500723 2x3500717 2x3500718 2x3500718

Please specify exact type designation when inquiring or ordering!

20
Spare parts for type HWA2 – DN 4 - 12

DN 4 5 6 8 12

5 Cover complete (2x) 1103879-541 1104030-200 1104130-184 1104230-129 1104430-040

8 Rotor K complete 1103884-534 1104055-217 1104155-175 1104255-155 1104455-112
10 Butting ring 1103896-539 1104061-221 1104161-199 1104261-156 1104461-116
13 Rotor bushing 1103888-540 1104059-214 1104129-208 1104248-157 1104446-117
14 Anti-rotation device 1103924-542 1104074-231 1104174-209 1104274-163 1104447-137
16 Elbow A2 1103906-536 1104051-224 1104151-197 1104251-160 1104451-108
17 Contact bolt 1 1103899-578 1103899-578 1104124-205 1104124-205 1104424-104
18 Contact bolt 2 1103899-579 1103899-579 1104124-206 1104124-206 1104424-106
20a Sealing ring W 3510649 3511353 3511354 3511355 3511357
21 O-ring 3511703-015 3512512-015 3512517-015 3511751-015 3512518-015
22 Gasket 1103909-335 1104075-185 1104175-178 1104275-105 3512022
23 Gasket 1110518-113 1190037 1104075-185 1105695-050 3512023-063
24 O-ring 3511855 3511826 3511692 3511873 3512519
25 Compression spring 12x3511564 16x3511564 18x3511564 26x3511532 28x3511457
26 Screw 1 16x3500196-007 8x3500236 8x3500236 16x3500200-008 16x3500248-002
27 Screw 2 16x3500209-007 8x3500244-007 8x3500432-007 16x3500435-007 16x3500436-007
28 Cyl. head screw 2x3500428 2x3500410 2x3500195 2x3500410 2x3500444
29 Cyl. head screw 2x3500329-003 2x3500329-003 2x3500433-003 2x3500376-003 2x3500376-003
30 Hexagon screw 4x3500162-008 4x3500162-008 4x3500434-008 4x3500434-008 4x3500248-002
31 Hexagon nut – 16x3500300 16x3500300 16x3500300 16x3500304
32 Hexagon nut 4x3500285-008 4x3500285-008 4x3500287-008 4x3500287-008 4x3500304
33 Circlip 3501251 3501252-001 3501237-001 3501231 3501264
34 Spring washer 2x3500723 2x3500723 2x3500717 2x3500718 2x3500718

Please specify exact type designation when inquiring or ordering!

21
22
23
 D 14511 us

Headquarter Branch Offices & Service Stations:

Christian Maier GmbH & Co. KG Maier America LLC

Maschinenfabrik 6669 Peachtree Industrial Blvd., Suite L / M
Wuerzburger Straße 67-69 Norcross, GA 30092 - USA
D-89520 Heidenheim – Germany
 + 1-770-409 0022
P.O.Box 1609 + 1-770-409 0069
D-89506 Heidenheim – Germany info@maieramerica.com
 + 49 (0) 73 21 / 317-0 www.maieramerica.com
+ 49 (0) 73 21 / 317-139 (Export)
 0 800 / 7 51 82 50
+ 49 (0) 73 21 / 317-239 Maier Italia Srl
vkd@maier-heidenheim.de Via Enrico Toti 3
www.maier-heidenheim.de I-21040 Gerenzano (VA)
 + 39-02-96 24 82 88
+ 39-02-96 36 96 95
info@maier-italia.com
www.maier-italia.com