DSI CAST STEEL VALVES

FIGURE NUMBERS, PRESSURE CLASSES AND TRIM MATERIALS

Specifying DSI API 600/603 Cast Stainless Steel Valve Figure Numbers
Stainless Steel Example: 16" G66R-16-16HFS-H This number represents a 16" Class 600 Gate Valve with RTJ Flanged Ends,
operated by a Bevel Gear Operator, API Trim No. 12, API 600 Design, utilizing CF8M Stainless Steel Body Material, and Grafoil
Packing and Gaskets.

16” G 66
37 R - 16 - 16 HFS - H

Pressure End Body Trim Hardfaced**

Size Operation Special Size
Classes Connection Material Material Option
16" No Denotation See Chart No Denotation 04 04 HFS No Denotation No Denotation
for Manual Below, for Raised Face A351 CF8 304 SS Half HF Trim for Grafoil for API 603
Operation Left Flanged End 04L 04L U Packing Design
G R A351 CF3 304 LSS Full HF Trim & Gaskets H
Gear Operated RTJ Flanged Ends 16 16 T API 600 Design
FF A351 CF8M 316 SS PTFE Packing
Flat Faced Ends 16L 16L & Gaskets
A351 CF3M 316L SS EB
17 17 Cryogenic Stem
A351 CG8M 317 SS Extension
17L 17L
A351 CG3M 317L SS
47 21
A351 CF8C 321 SS
A20 47
A351 CN7M 347 SS
A20
Alloy 20

Pressure Classes API Trim Materials

Valve Type Class Flanged End Welding End API Trim Seating** Stem/
Symbol
150 37 37 1/2 Number Disc/Seat Backseat
300 23 23 1/2 04 2 304 / 304 304
600 66 66 1/2 16 10 316 / 316 316
Gate
900 73 73 /2
1
16 HFS 12 316 / HF 316
1500 77 77 1/2 A20 13 Alloy 20 /Alloy 20 Alloy 20
2500 87 87 1/2 A20 HFS 14 Alloy 20 / HF Alloy 20
150 133 133 1/2 04 U 15 HF / HF 304
300 141 141 /2
1
16 U 16 HF / HF 316
600 161 161 1/2 47 U 17 HF / HF 347
Globe
900 173 173 1/2 A20 U 18 HF / HF Alloy 20
1500 179 179 1/2 **HF denotes Stellite 6 or equivalent.
2500 185 1851/2
150 137 137 1/2
300 149 149 1/2
600 165 165 1/2
Swing Check
900 177 177 1/2
1500 189 189 1/2
2500 199 1991/2

Note: All information is subject to change without notice.

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 DSI CAST STEEL VALVES

DSI CAST STEEL GATE VALVES

Class 150, 300, 600, 900 & 1500
Class 600, 900 & 1500
Class 300

Class 150

Parts & Materials

Item Part Name WCB (XU) LCC (LU-N) C5 (U) C12 (U) WC6 (U) CF8M
1 Body A216 WCB A352 LCC A217 C5 A217 C12 A217 WC6 A351 CF8M
2 Bonnet A216 WCB A352 LCC A217 C5 A217 C12 A217 WC6 A351 CF8M
4 Flex Wedge A216 WCB /13Cr A352 LCC / 316 SS A217 C5 / HF A217 CA15 / HF A217 CA15 / HF A351 CF8M
5 Seat Rings* A105 /Stellite A350 LF2/ HF A182 F5 / HF A182 F9 / HF A182 F11/ HF A240 316 / HF
6 Stem AISI 410 AISI 316 A479 410 A479 410 A479 410 A276 316
7 Backseat AISI 410 AISI 316 A479 410 A479 410 A479 410 A276 316
8 Bonnet Studs A193 B7 A320 L7M A193 B16 A193 B16 A193 B16 A193 B8 Class 2
9 Bonnet Nut A193 2H A194 7M A194 4 A194 4 A194 4 A194 8M
Gasket Class 150 316 SS / Graphite GHE Graphite Jacketed
Gasket Class 300 Spiral Wound Metal Graphite
10
Gasket Class 600
Ring Type Joint
& Above
11 Handwheel Carbon Steel / Ductile Iron
12 Gland Flange A216 WCB /A105 or A283D AISI 304
Yoke Sleeve/
13 A439 D2
Stem Nut
14 Handwheel Nut Steel AISI 304
14.1 Set Screw Steel
Yoke Cap/
15 Steel
Sleeve Gland
16 Gland A276 410 A276 316 A479 410 A479 410 A479 410 A276 316
17 Spacer A276 410 A276 316 A479 410 A479 410 A479 410 A276 316
18 Eyebolts A193 B7 A193 B7M A193 B7 A193 B7 A193 B7 A193 B8
19 Eyebolt Pins A36 A36 Steel Steel Steel AISI 304
20 Eyebolt Nuts A194 2H A194 2HM A194 2H A194 2H A193 2H A194 8
21 Packing Graphite Stack
22 Yoke A216 WCB A351 CF8
23 Grease Fitting Steel
24 Nameplate AISI 304
25 Bearing Commercial
26 Yoke Studs A193 B7 A193 B8
27 Yoke Nuts A194 2H A194 8
*Welded Seat Rings. **HF denotes Stellite 6 or equivalent. “( )” indicates standard trim as listed on page 6. Contact your DSI salesperson for more information.

Note: All information is subject to change without notice.

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 DSI CAST STEEL VALVES

DSI CAST STEEL GATE VALVES

37-37½ • Class 150
Dk Dk
14.1 14 14.1 14

11 15
11 15
13 23
H1 13 23 H1
OPEN OPEN
22 12
20 12
20
18 16 18 16
21 19 21 19
H 17 9 H 27 9
7 8 26 8
2 10 17 10
6 24 7 24
1 2
6
D1 D1
D2 1 D2
D3 D3
D D

4 5 nxd 4 5 nxd
a f a f
L L1 L L1
WCB, LCC: NPS 2"- 8" WCB, LCC: NPS 10" & Larger
Chrome Alloy: NPS 2"-12" Chrome Alloy: NPS 14" & Larger

Dimensional Data (in.) & Flow Coefficient (Cv)

End Flange
Size H1 Wt.
Bolt Hole L L1 H Dk Cv
(in.) D D1 D3 a f (Open) Lbs.
D2 n d
2 2.00 6.00 4.75 4 0.75 3.62 0.63 0.06 7.00 8.50 11.97 14.45 7.87 48.4 298.7
2 /2
1
2.50 7.00 5.50 4 0.75 4.12 0.69 0.06 7.50 9.50 14.57 17.52 7.87 57.2 466.7
3 3.00 7.50 6.00 4 0.75 5.00 0.75 0.06 8.00 11.12 14.33 17.72 9.84 77.0 694.1
4 4.00 9.00 7.50 8 0.75 6.19 0.94 0.06 9.00 12.00 17.01 21.42 11.81 114.4 1234.0
6 6.00 11.00 9.50 8 0.87 8.50 1.00 0.06 10.50 15.88 23.27 29.76 11.81 198.0 2873.9
8 8.00 13.50 11.75 8 0.87 10.62 1.13 0.06 11.50 16.50 29.29 37.88 13.78 288.2 5109.1
10 10.00 16.00 14.25 12 1.00 12.75 1.22 0.06 13.00 18.00 35.27 45.98 15.75 440.0 8622.6
12 12.00 19.00 17.00 12 1.00 15.00 1.25 0.06 14.00 19.75 41.93 54.84 17.70 678.7 12416.5
14 13.25 21.00 18.75 12 1.13 16.25 1.38 0.06 15.00 22.50 46.61 61.02 19.70 895.4 17651.7
16 15.25 23.50 21.25 16 1.13 18.50 1.44 0.06 16.00 24.00 53.86 70.79 23.60 1245.2 23055.3
18 17.25 25.00 22.75 16 1.25 21.00 1.56 0.06 17.00 26.00 60.47 79.21 23.60 1595.0 30603.6
20 19.25 27.50 25.00 20 1.25 23.00 1.69 0.06 18.00 28.00 66.29 86.85 26.80 2059.2 37782.2
24 23.25 32.00 29.50 20 1.38 27.25 1.88 0.06 20.00 32.00 78.62 103.15 29.50 3020.6 57349.4
30(A) 29.00 38.75 36.00 28 1.38 33.75 2.95 0.06 24.00 36.00 93.43 — — 4391.2 95044.0
30(B) 29.00 34.94 33.31 44 0.87 32.00 1.77 0.06 24.00 36.00 — — — 4083.2 95044.0
36(A) 34.50 46.00 42.75 32 1.61 40.25 3.58 0.06 28.00 40.00 111.61 — — 6956.4 146313.1
36(B) 34.50 41.62 39.75 44 0.98 38.25 2.09 0.06 28.00 40.00 — — — 6410.8 146313.1

Note: All information is subject to change without notice.

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