Y-pattern valves are available in three bonnet designs.The first design is the Bolted Bonnet,With male-female joint,spiral wound gasket,made in F304L/graphite.Ring joint gasket are also available on request.The second design is the welded bonne,with a threaded and seal welded joint.On request a full penetration strongth welded joint is available.The third disign is the pressure seal bonnet,with a threaded and pressure seal bonnet joint.
The Y-Pattern valves are available in globe and check design configurations.
Y-Pattern valve Design Construction and Specifications
Y-Pattern globe and check valves conform to ANSI B l 6.34.Bach are tested according to APl 598,and marking is per MSS-SP-25.
Construction is as follows:
Full port or Convertional Port
Piston and ball check
Spring available on request
Loose solid disc
two piece self-alihning packing hland
Integral back seat
Outside Serew and Yoke(OS&Y)
Bolted bonnet with spiral-wound gasket,threaded and seal welded bonnet or threaded and pressure seal bonnet
Socket weld ends to ASME B16.11
Sorewed Euds(NPT)to ANSI/ASME B1.20.1
Main Parts and Material.
.
Main External Dimensions and Weight.
The Y-Pattern valves are available in globe and check design configurations.
Y-Pattern valve Design Construction and Specifications
Y-Pattern globe and check valves conform to ANSI B l 6.34.Bach are tested according to APl 598,and marking is per MSS-SP-25.
Construction is as follows:
Full port or Convertional Port
Piston and ball check
Spring available on request
Loose solid disc
two piece self-alihning packing hland
Integral back seat
Outside Serew and Yoke(OS&Y)
Bolted bonnet with spiral-wound gasket,threaded and seal welded bonnet or threaded and pressure seal bonnet
Socket weld ends to ASME B16.11
Sorewed Euds(NPT)to ANSI/ASME B1.20.1
Main Parts and Material.
.
| No | Part Name | Carbon steel | Alloy steel | Stainless steel | |
| 1 | Body | A105N | A182 F22 | A182 F304(L) | A182 F316(L) |
| 2 | Disc | A276 420 | A276 304 | A276 304(L) | A276 316(L) |
| 3 | Stem | A182 F6A | A182 F304 | A182 F304(L) | A182 F316(L) |
| 4 | Gasket | 316+Graphite | 316+PTFE | ||
| 5 | Bonnet | A105N | A182 F304 | A182 F304(L) | A182 F316(L) |
| 6 | Bolt | A193 B7 | A193 B16 | A193 B8 | A193 B8M |
| 7 | Pin | A276 420 | A276 304 | ||
| 8 | Packing sleeve | A276 410 | A182 F304(L) | A182 F316(L) | |
| 9 | Eyelet bolt | A193 B7 | A193 B16 | A193 B8 | A193 B8M |
| 10 | Packing plate | A105N | A182 F304 | ||
| 11 | Nut | A194 2H | A194 4 | A194 8 | A194 8M |
| 12 | Stem nut | A276 420 | |||
| 13 | Nut | A194 2H | A194 4 | A194 8 | A194 8M |
| 14 | Nameplate | SS | |||
| 15 | Handwheel | A197 | |||
| 16 | Packing | Flexible graphite | PTFE | ||
| Applicable medium | Water,steam,oil.,etc | Water,steam,oil.,etc | Acid.,etc | ||
| Applicable temperature | -29~425°C | -29~550°C | -29~200°C | ||
Main External Dimensions and Weight.
| NPS | 1/2" | 3/4" | 1" | 1 1/4" | 1 1/2" | 2" |
| L | 98 | 111 | 120 | 140 | 140 | 170 |
| H(Open) | 175 | 215 | 254 | 305 | 305 | 365 |
| W | 100 | 125 | 160 | 160 | 180 | 200 |
| WT(kg) | 5 | 6.3 | 7.6 | 9.8 | 13.8 | 14.0 |