Ref. No.
D 04897
PILOT OPERATED Release 11 / 2021
PRESSURE RELIEF VALVE
Model : PPR ENGINEERING - 1 of 3
A Polyhydron Group Company
Description
Two stage poppet type Relief valve.
Solenoid unloading or proportional relieving facility as an optional feature.
Vent connection for remote control.
Two standard sizes in Threaded construction.
Three standard sizes in Sub-plate mounting construction.
Section Hydraulic symbol
X X X X
P P P P
T T T T
External pilot, Internal drain Type A Type B Type P
X Y X Y X Y X Y
P P P P
X P Y T T T T T
External pilot, External drain Type YA Type YB Type YP
Dimensions in mm.
Unit dimensions *
15
*
L7
Valve : Threaded body
L5
Solenoid valve or Proportional relief valve
* ( Provision )
105
( Refer Note 1 on page 3.)
( Dimensions indicative only,
*
refer individual product catalogue.)
H1 ( without soln.)
Y Y
H2 ( with soln.)
Pressure adjusting screw( 4 A/F )
Handknob available as an
G1/4
optional feature
H6
T T
X
X
H5
Port for external
H3
P P pilot drain G1/4.
( Optional feature )
H4
G 4 L2
ØD1 L3 L4
B2 L1 ØD2 hole, thru, 2 nos.
( 'M' size S.H.C.screw for mounting,
B1 L6
refer table No. 1 )
Table No. 1
Mass
Size kg. G H1 H2 H3 H4 H5 H6 L1 L2 L3 L4 L5 L6 L7 B1 B2 ØD1 ØD2 M
20 4.8 G1 131 140 25 10 57 100 85 43 62 12 33.5 153 155 66 33 44 9 M8
30 9.5 G1-1/2 170 178 42 13 80 138 100 54 72 18 41.5 162 163 86 43 60 11 M10
Phone : +91-(0)831- 2411001
Fax : +91-(0)831- 2411002
78-80, Machhe Industrial Estate,
E-mail : polyhydron@gmail.com
Machhe, Belgaum - 590 014. INDIA.
Website : www.polyhydron.com
D 04897 - PPR
A Polyhydron Group Company ENGINEERING - 2 of 3
Valve : Subplate mounting L6*
*
15
Solenoid valve or Proportional relief valve
( Provision )
* ( Refer Note 1 on page 3.)
105
( Dimension indicative only,
*
refer individual product catalogue.)
Pressure adjusting
screw ( 4 A/F )
H1
( Hand knob available
H2
as an optional feature )
X P Y T
L1 ØD1, thru
L3 L2 ( 'M' size S.H.C.screw,
For fixing screws refer table No. 2 )
Y
X P T
B1
B2
L4 L5
Table No. 2
Size H1 H2 L1 L2 L3 L4 L5 L6 ØD1 B1 B2 Mass M Tightening
kg Valve fixing Screws Torque
10 120 82 150 80 4 12.9 53.8 142 13 80 53.8 4.8 M12 x 100 L - 4 nos. 125 Nm
M16 x 90 L - 2 nos.
20 115 66 167 120 4 35.9 66.7 163 18 100 70 6.7 300 Nm
M16 x 50 L - 2 nos.
30 143 93 182 155 4 47.3 88.9 178.5 20 120 82.6 12 M18 x 120 L - 4 nos. 500 Nm
L1
L2 L7
ØD2 max.
B4
L8
Y ØD1 max.
B3
X P T
B1
B2
'M' Tapped hole,
T2 deep, 4 nos.
L3 L4
ØD3 max.
L5 Ø7.5 hole,
L6 8 deep.
Interface details
Note : Surface roughness : Ra value is equal to or better than 0.8 µm
Surface flatness : 0.01 - 100 mm.
Table No. 3
Size L1 L2 L3 L4 L5 L6 L7 L8 B1 B2 B3 B4 ØD1 ØD2 ØD3 M T2
10 80 12.9 0 22.1 22.1 47.5 53.8 31.8 80 53.8 26.9 13.1 13 4.8 4.8 M12 22
20 120 35.9 23.8 11.1 33.4 55.6 66.7 43.7 100 70 35 15 23 6.3 6.3 M16 26
30 155 47.3 31.8 12.7 44.5 76.2 88.9 54.9 120 82.6 41.3 18.7 32 6.3 6.3 M18 30
All rights reserved.
Subject to revision
D 04897 - PPR
A Polyhydron Group Company ENGINEERING - 3 of 3
Technical specifications
Construction ............................................... Two stage poppet valve.
Mounting .................................................... Threaded bodies - Company standards
Subplate mounting - ISO6264.
Mounting position ...................................... Optional.
Flow direction ............................................ From port P to port T.
Maximum Operating pressure
For port P and X ............... 315 bar.
For port T and Y ............... 210 bar.
( For model with solenoid valve mounting provision )
For port T and Y................. Max. pressure is equal to tank port pressure rating
of the valve mounted.
Hydraulic medium ..................................... Mineral oil.
.
*
Viscosity range ......................................... 10 cSt to 380 cSt
Fluid temperature range ............................. -20°C to +70°C
Fluid cleanliness requirement ................... ISO 4406 20/18/15 or better.
.
Maximum flow handling capacity ............... For valve size
.
10 ..........100 l/min
20 ..........200 l/min
30 ..........400 l/min
Mass ......................................................... Refer individual table.
.
* Port pressure is additive to the setting of the valve.
Ordering code
PPR S 10 S 100 Y A 15
Pilot operated Model Design code
Pressure relief valve PPR*10S 15
PPR*20S 14
Set screw - S
PPR*30S 14
Hand knob - H
PPR*20T 15
PPR*30T 14
Subplate mounting - Size 10, 20 & 30
Threaded bodies - Size 20 & 30 Design code subject to change.
Installation dimensions remain
Subplate mounting - S same for design code 10 thru 19.
Threaded body -T
Provision for mounting solenoid valve
Pr. adjustment spring rating A - Sol. Valve normally closed.
25, 50, 100, 200 & 315, 400 bar. B - Sol. Valve normally opened.
P - Proportional relief valve.
External drain - Y Omit if not required
Internal drain - Omit
A B
a
Note 1 : Solenoid ( refer spool type ) Spool Type
P T
All rights reserved.
Subject to revision
