Structure of globe valve
Release date:
2019-02-19
Author:
Source:
Abstract
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Name |
Structure type |
Applicable design standards |
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Typical forged steel globe valve |
1. Flow channel JB/T 7746-1995: Shrinkage hole BS5352-1999: Through hole or shrinkage hole (CL150~800); Through hole (Cl1500) JPI-7S-36-1999: Through hole 2. Connection between valve body and valve cover: Flange, thread or welding 3. Connection end JB/T 7746-1995: Internal thread, socket welding or flange BS5362-1999: Internal thread, socket, flange and butt welding JPI-7S-36-1999: Internal thread, socket |
JB/T 7746-1995 BS 5352-1999 JPI-7S-36-1999 |
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Internal pressure self-sealing forged steel stop valve |
1. Flow channel: shrinkage hole 2. Connection between valve body and valve cover: internal pressure self-sealing 3. Connection end: butt welding, flange or socket |
ASME B16.34-1996 |
|
Cast steel stop valve |
1. Flow channel: angle type, straight-through type, direct current (Y type) 2. Connection between valve body and valve cover: flange 3. Connection end: flange or butt welding 4. Various types of valve discs can be used, usually with an open stem, and a few valves with smaller diameters use a concealed stem |
JPI-7S-46-1999 JIS B2071-1999 JIS B2072-1999 JIS B2081-1999 JIS B2082-1999 BS 1873-1999 MSS-SP-42-1999 GB/T 12235-1989 BS 5160-1989 |
|
Bellows sealed stop valve |
1. Flow channel: angle type, straight-through type, direct current (Y type) 2. Connection between valve body and valve cover: flange 3. Connection end: flange or butt welding 4. Various types of valve discs can be used, usually with rising stem, and a few valves with smaller diameters use concealed stem 5. Double stem seal of bellows and packing |
ASME B16.34-1996 |
|
Angle high pressure stop valve |
1. Flow channel: angle type 2. Connection between valve body and valve cover: thread, clamp or welding 3. Various types of valve discs can be used. For ultra-high pressure valves, internal pressure self-balancing valve discs are usually used 4. The valve body can be integral or two-piece 5. Connection end: flange or butt welding |
ASME B16.34-1996 GB/T 12235-1989 |
|
Lined stop valve |
1. Flow channel: angle type, straight-through type, direct current (Y type) 2. Connection between valve body and valve cover: flange 3. Connection end: flange or butt welding 4. Lining material: rubber, plastic, etc. |
ASME B16.34-1996 |
|
Two-way three-way stop valve |
1. Flow channel: two-way three-way flow channel 2. Connection between valve body and valve cover: flange 3. Connection end: flange or butt welding |
ASME B16.34-1996 |
|
Cast steel discharge valve |
1. Flow channel: straight-through 2. Connection end: flange 3. Valve disc: upward or downward 4. Connection between valve body and valve cover: flange |
ASME B16.34-1996 |
|
Three-way stop valve |
1. Flow channel: tee 2. Connection end: flange 3. Valve disc: flat seal |
ASME B16.34-1996 |
|
Pressure gauge stop valve |
1. Flow channel: direct current, right angle, tee 2. Connection between valve body and valve cover: integral forging or thread 3. Connection end: external thread, clamp 4. Valve disc: conical surface and flat surface |
ASME B16.34-1996 |
|
Water seal stop valve |
1. Flow channel: direct current 2. Connection end: socket welding, butt welding 3. Valve body and valve cover: both forged, one chrome-nickel steel or carbon steel 4. Valve disc: cone seal (DN10~25mm), plane seal (DN32~200mm) |
E101-1999 GB/T 12235-1999 ASME B16.34-1996 |
|
Slurry valve |
1. Flow channel: direct current 2. Connection end: flange 3. Valve body structure: divided into left and right valve bodies with valve seat in the middle, and the left and right valve bodies are connected by bolts 4. Valve body and bracket connection: bolt connection 5. Valve cover: CL150 integral forging, CL300, CL400 split type, connected by pillars 6. Valve disc: cone seal to flat seal, or throttling seal surface welded with hard alloy |
GB/T 12235-1989 ASME B16.34-1996 |
|
Angle throttle valve |
1. Flow channel: right angle 2. Connection end: flange 3. Valve body and valve cover: forged throttling type, sleeve drilling, piston moves up and down in the sleeve to adjust the flow 4. Valve body and valve cover connection "bolt connection |
API 6A-2002 |
|
Titanium stop valve |
1. Flow channel: straight through 2. Valve body, valve cover, stuffing box, valve disc, valve stem are made of titanium 3. Valve body and valve cover connection: bolt connection 4. Valve disc is flat seal |
GB/T 12235-1989 |
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