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KATA VALVE API 6D Pressure Balanced Plug Valve 1/2”~24“

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Kata Valve (Group) Co., Ltd.

KATA VALVE API 6D Pressure Balanced Plug Valve 1/2”~24“

Country/Region china
City & Province shanghai shanghai

Product Details

 

 

KATA VALVE PLUB VALVE NPS 2"~24"

 

Plug valves are valves with cylindrical or conically tapered "plugs" which can be rotated inside the valve body to control flow through the valve. The plugs in plug valves have one or more hollow passageways going sideways through the plug, sothat fluid can flow through the plug when the valve is open. Plug valves are simple and often economical.

 

 

Plug valves are valves with cylindrical or conically tapered "plugs" which can be rotated inside the valve body to control flow through the valve. The plugs in plug valves have one or more hollow passageways going sideways through the plug, so that fluid can flow through the plug when the valve is open. Plug valves are simple and often economical.

When the plug is conically tapered, the stem/handle is typically attached to the larger diameter end of the plug. Plug valves usually do not have bonnets but often have the end of the plug with the handle exposed or mostly exposed to the outside. In such cases, there is usually not much of a stem. The stem and handle often come in one piece, often a simple, approximately L-shaped handle attached to the end of the plug. The other end of the plug is often exposed to the outside of the valve too, but with a mechanism that retains the plug in the body.

 

he simplest and most common general type of plug valve is a 2-port valve with two positions: open to allow flow, and shut (closed) to stop flow. Ports are openings in the valve body through which fluid can enter or leave. The plug in this kind of valve has one passageway going through it. The ports are typically at opposite ends of the body; therefore, the plug is rotated a fourth of a full turn to change from open to shut positions. This makes this kind of plug valve a quarter-turn valve. There is often a mechanism limiting motion of the handle to a quarter turn, but not in glass stopcocks.

Slightly conically tapered metal (often brass) plug valves are often used as simple shut-off valves in household natural gas lines.

It is also possible for a plug valve to have more than two ports. In a 3-way plug valve, flow from one port could be directed to either the second or third port. A 3-way plug valve could also be designed to shift flow between ports 1 and 2, 2 and 3, or 1 and 3, and possibly even connect all three ports together. The flow-directing possibilities in multi-port plug valves are similar to the possibilities in corresponding multi-portball valves or corresponding multi-port valves with a rotor. An additional possibility in plug valves is to have one port on one side of the plug valve and two ports on the other side, with two diagonal and parallel fluid pathways inside the plug. In this case the plug can be rotated 180° to connect the port on the one side to either of the two ports on the other side.

Stopcocks used in laboratory glassware are typically forms of conically tapered plug valves. When fused with the glassware, the valve bodies are made of glass. Otherwise, they can be made of an inert plastic such asTeflon. The plugs can be made of a similar plastic or glass. When the plug is made of glass, the handle and plug are fused together in one piece out of glass. When glass is used for both the stopcock body and the plug, the contacting surfaces between them are special ground glass surfaces (see Laboratory glassware) often with stopcock grease in between. Special glass stopcocks are made for vacuum applications, such as in use with vacuum manifolds. Stopcock grease is always used in high vacuum applications to make the stopcock air-tight. Also if the plug valve is "locked" from being in the open or closed position for an extended amount of time lubricant can be added through the greaser with the valve in service.

References

 

Plug Valve:
Size: NPS 1/2"-24"
Pressure: Class 150-1500
Material:1/2"-2": A105,LF2,F11,F22,F5,F304,F316,F 304L ,F 316L 2"-36":WCB,LCB,WC6,WC9,C12,C5,CF8,CF3,CF 3M ,CF 8M
Design & Manufacture Std.: API 600,BS 1414,ASME B16.34
Face to Face Std.: API 6D,ASME B16.10,DIN 3202,BS2080
End Connection Std.: ASME B16.11,ASME B 1.20.1 ,ASME B16.5, ASME B16.47,DIN2543-2551
Test Standard: ISO5208,API 600,BS 6755
Structure Type: Rising Stem and Wedge Single Disc
Operated Way: Handwheel, Bevel Gear, Pneumatic, Electric

 

 

Applicable Standards:
DESIGN & MANUFACTURE CONFORM WITH: API 6D/ISO 14313, ASME B16.34
CONNECTION DIMENSION CONFORMS WTIH: ASME B16.5, DIN EN 1092
FIRE RESISTANCE DESIGN CONFORMS WITH: API 607/ISO 10497
INSPECTION & TEST CONFORMS WITH: API 6D, ISO 5208, API 598
MATERIAL CONFORMS WITH: ISO 15156



Materials of parts
Body
Cock body
Stem
Lower cover
O-ring
Stud
Nut
Gasket WCB/LCB/CF8M/CF8/CF3M/CF3/WC6/WC9/CD3MN
WCB+N/CA15/4140+ENP/CF8M/CF8/CF3M/CF3/CD3MN
F6a/4140+ENP/F304/F316/F304L/F316L/F51
A105/LF2/F304/F316/F304L/F316L/F51
VITON/NBR
B7M/B8M/L7M/B16M
2HM/8M/7M/4M
Flexible graphite+304/PTFE/304
*Materials could be choosed according to customers' requirement & working condition.

Plug Valve Introduction
1. Usage
It is mainly used for storage and transportation of oil and gas in the chemical industry, metallurgy, paper making, food processing, shipbuilding and other
industries, used to open or close, and with pneumatic and electrical devices can also achieve the long-distance operation, to ensure personal safety.
2. Features
1) lockup device, manual operation, in order to prevent misoperation, valve can be equipped with padlock device.
2) Anti-static structure, when a fire break out, the metal seal forms to prevent large leakage of media
3) valve body and stem can finish emergency injection seal, through the grease injection valve, the stop-leak compound can achieve a short-time seal, theref
or to buy time handling the scene.

 

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