Forged Steel Gate Valves,Forged Steel Extended Body Gate Valve
forged steel valve body has two kinds of extended bonnet design form first one is bolted bonnet, according to this design form design of the valve, the valve body and the valve cover bolts nuts, spiral wound gasket (304 clip flexible graphite manufacturing) seal. customers have special requirements can be used to connect the metal ring. second design is the welded bonnet, sweeping design of this design in the form of the valve, the valve body and valve cover with a threaded connection, welded seal. customers have special requirements can be used through the solder connections.
Extended Body Valves for gate valves, ball valves and globe valve.
Structure and characteristics:
Extended Body Valves comply with API602. Tested according to API598, labeled according to MSS-SP-25.
1. Extended Body
2. BB - Bolted Bonnet
3. Socket Welding: ANSI B16.11
4. OS&Y- outside screw and yoke
5. Bolted Gland
6. Metal-graphite Spiral wound gasket between the Bonnet & Body
7. Graphite stem packing
8. Forged Steel Gate Valves conform to API 602, BS5352 and ASME B 16.34. Each valve is inspected and tested in accordance with API 598, and marked per MSS SP25.
9. Main materials: A105, LF2, F5, F22, F304, F316, F347, F321, F51, Monel, 20# Alloy
Construction:
Stem seal consists of flexible graphite packing with anti-extrusion rings for optimum sealing
Two piece self aligning packing gland
Impactor handwheels or chain wheels are available as an option
Conventional port or full port
Socket Weld Ends to ASME B16.11
Threaded Ends to ANSI/ASME B.1.20.1
Handwheel is rugged with knobs to provide positive grip
Full range of actuators and accessories to meet automation requirements
Available in carbon, stainless steel and other materials
Materials of main parts:
NO. |
Part Name |
CS to ASTM |
AS to ASTM |
SS to ASTM |
Type A105 |
Type F22 |
Type F304(L) |
Type F316(L) |
1 |
Body |
A105 |
A182 F22 |
A182 F304(L) |
A182 F316(L) |
2 |
Seat Ring |
A276 420 |
A276 304 |
A276 304(L) |
A276 316(L) |
3 |
Wedge |
A276 410 & 403 |
A182 F304 |
A182 F304(L) |
A182 F316(L) |
4 |
Gasket |
Corrugated SS + graphite |
SS + PTFE |
5 |
Stem |
A182 F6 |
A182 F304 |
A182 F304(L) |
A182 F316(L) |
6 |
Bonnet Bolt |
A193 B7 |
A193 B16 |
A193 B8 |
A193 B8M |
7 |
Pin |
A276 420 |
A276 304 |
8 |
Gland Eyebolt |
A193 B7 |
A193 B16 |
A193 B8 |
A193 B8M |
9 |
Gland Nut |
A194 2H |
A194 4 |
A194 8 |
A194 8M |
10 |
Nameplate |
SS |
11 |
Handwheel |
A197 |
12 |
H.W.Lock Nut |
A194 2H |
A194 4 |
A194 8 |
A194 8M |
13 |
Yoke Nut |
A276 420 |
14 |
Gland Flange |
A105 |
A182 F11 |
A182 F304(L) |
A182 F316(L) |
15 |
Gland |
A276 410 |
A182 F304(L) |
A182 F316(L) |
16 |
Stem Packing |
Flexible Graphite |
PTFE |
17 |
Bonnet |
A105 |
A182 F22 |
A182 F304(L) |
A182 F316(L) |
Suitable Medium |
W.O.G.etc |
W.O.G.etc |
HNO3CH3OOH etc |
Suitable Temperature |
-29~425 |
-29~550 |
-29~180 |
Dimensions and weights(kg): 800Lb
NPS |
Conv. |
3/8" |
1/2" |
3/4" |
1" |
1-1/4" |
1-1/2" |
2" |
Full |
|
3/8" |
1/2" |
3/4" |
1" |
1-1/4" |
1-1/2" |
L1 |
107.5 |
107.5 |
107.5 |
120 |
127 |
127 |
152 |
L |
147 |
147 |
153.5 |
175.5 |
187 |
187 |
222 |
H(OPEN) |
158 |
158 |
169 |
197 |
236 |
246 |
283 |
W |
100 |
100 |
100 |
125 |
160 |
160 |
180 |
Weights |
Bolted |
3.1 |
2.9 |
3.4 |
5.5 |
7.8 |
8.3 |
13.4 |
Welded |
2.8 |
2.6 |
3.1 |
5.1 |
7.4 |
7.6 |
12.1
|