Products knowledge
The valve standards and definitions---2009-11-12
1, gate valve
globe valve gate valve is a common one, is mainly used to connect or disconnect piping in the media, not for regulating media flow. Valve for pressure, temperature and range of large caliber, especially for medium and large diameter pipe.
Gate of the main criteria
GB12232-89 "General Valve Flanged iron gate"
GB12234-89 "universal valve steel gate valve connecting flange and butt"
GB8464-87 "inside thread connection gate valve, globe valve, ball valve, check valve general technical conditions"
GB8465.1-87 "inside thread connection gate valve, globe valve, ball valve, check valve basic size iron gate"
JB/T53162-91 "Gate Valve Product Quality Grading"
JB/T5298-91 "pipeline with the steel plate gate valve"
JB/Z243-85 "Gate Static life test procedures"
JB/TQ648-88 "flat iron on the clip-on valve"
JB/T53200-94 "steel plate gate valve on the clip-on Product Quality Grading"
JB/T53242-94 "steel plate gate valve product quality and grading"
Second, globe valve, throttle
globe valve is a common globe valve is mainly used to connect or disconnect piping in the media, generally not used for regulating flow. globe valves for pressure, temperature range is large, but are generally used for medium and small diameter pipes.
The main criteria for valve
GB12233-89 "general globe valve steel valve and lift check valve"
GB12235-89 "General Valve Flanged steel globe valve and lift check valve"
JB/T53174-94 "Globe Valve Product Quality Grading"
JB/T53165-92 "high-pressure balance valve product quality grading"
GB/T587-93 "marine bronze flanged stop valve"
GB/T590-93 "Marine cast iron flanged stop valve"
GB8464-87 "inside thread connection gate valve, globe valve, ball valve, check valve general technical conditions"
GB8465.2-87 "inside thread connection gate valve, globe valve, ball valve, check valve basic size iron cut-off valve"
III throttle
Throttle is a cross-section by changing the flow channel to control the fluid pressure and flow control valve belonging to class, but because of its structural constraints, there is no control valve adjustment feature, it can not replace the control valve to use.
Cut-off-type throttle valve in structure apart from Kai and the relevant parts of the outer pieces are the same as with the cut-off valve. The pieces are mostly open and close the throttle cone streamlined.
4, Butterfly valve
Butterfly valve is used with the rotating circular butterfly valve stem to open and close pieces of board, in order to achieve open and close the valve action. Butterfly cut off valve is mainly used to use, can be designed to have a regulator or truncated and regulation functions. Medium and large diameter butterfly valve in the current low-pressure pipe used more and more.
The main criteria butterfly
GB12238-89 "universal valve connecting flange and a butterfly clip"
JB/T53171-94 "butterfly valve product quality grading"
JB/Z248-85 "butterfly valve Static life test procedures"
5, check valve
Check valve is automatically prevent fluid backflow valve. Check the valve flap to open under pressure in the fluid, fluid flows from the import side the export side. When the import side, when the pressure lower than the export side of the valve flap in the fluid pressure in itself under the action of gravity and other factors automatically close to prevent fluid backflow.
GB12233-89 "general cut-off valve steel valve and lift check valve"
GB12235-89 "General Valve Flanged steel globe valve and lift check valve"
GB12236-89 "Universal Steel Swing Check Valve"
GB/T13932-92 "Universal Valve Iron Swing Check Valve"
GB/T589-93 "Marine bronze flanged check valve"
GB/T592-93 "Marine flange cast iron check valve"
GB8464-87 "inside thread connection gate valve, globe valve, ball valve, check valve general technical conditions"
GB8465.4-87 "inside thread connection gate valve, globe valve, ball valve, check valve steel valve basic dimensions"
JB/T53036-92 "Check Valve Product Quality Grading"
6, ball valve
Ball is a sphere with a circular hole for hoist parts, rotate the sphere with the stem in order to achieve open and close the valve movement.
The main criteria for valve
GB12237-89 "universal valve steel ball valve connecting flange and butt"
GB/T15185-94 "iron and copper ball valve"
GB8464-87 "inside thread connection gate valve, globe valve, ball valve, check valve general technical conditions"
GB8465.3-87 "inside thread connection gate valve, globe valve, ball valve, check valve basic size steel ball valve,"
JB/T53167-94 "ball valve product quality grading"
JB/Z246-85 "Ball Static life test procedures"
7, diaphragm
Diaphragm Valve is a special form of block valve, which open and close parts is to use a membrane made of soft materials, it will body cavity with the valve cover cavity separated.
8, stopcock
Plug Valve is plug hole of the body as a hoist parts, with the stem-plug rotation, in order to achieve open and close the valve movement.
Stopcock of the cone-plug mostly, but also cylinder, plug valves simple structure, open and close rapidly, the fluid resistance. Plug valves commonly used in pressure is not high-caliber small occasions.
Plug valves are used for cut off media flow, but also for media distribution, three, and four-way plug valves plug valves are used for changing the flow direction of medium or media distribution.
9, plunger valve
10, safety valve
Valves used in boilers, pressure vessels, pressure equipment, as overpressure protection device. When protective equipment abnormal elevation of pressure within the medium reach the required value, the valve automatically opens, and then the whole amount of emissions, in order to prevent the pressure continues to rise, when the pressure is reduced to another provision of value, automatically shut down.
The main criteria for safety valve
GB12241-89 "General requirements for safety valve"
GB12242-89 "safety valve performance test method"
GB12243-89 "spring load safety valve directly,"
ZBJ98013-89 "power plant safety valve technical conditions"
JB/T53170-94 "spring load safety valve directly to product quality and grading"
11, pressure reducing valve
Pressure reducing valve is a valve, which is cutting through the headstock parts will be reduced to a certain inlet pressure required outlet pressure, and can import pressure and flow changes, the use of media outlet pressure to maintain the energy of their own basically unchanged valve.
12, trap
Trap is used for steam pipe network and devices can automatically discharge condensate water, air and other non-condensing gas, and blocking water vapor valve leak
13, the sewage valve
14, regulating valve
The valve for water, steam pipe-line for use as an adjustable flow rate, self-locking pipe network can always maintain a balance.
15, the other valve
Tube Pinch Valve
Emergency shut-off valve and safety accessories
Solenoid
Vacuum Valves
Cylinder valve
Multi-purpose valve
Special valves and special valves
16, valve drive
Manual
Electric
Pneumatic
globe valve gate valve is a common one, is mainly used to connect or disconnect piping in the media, not for regulating media flow. Valve for pressure, temperature and range of large caliber, especially for medium and large diameter pipe.
Gate of the main criteria
GB12232-89 "General Valve Flanged iron gate"
GB12234-89 "universal valve steel gate valve connecting flange and butt"
GB8464-87 "inside thread connection gate valve, globe valve, ball valve, check valve general technical conditions"
GB8465.1-87 "inside thread connection gate valve, globe valve, ball valve, check valve basic size iron gate"
JB/T53162-91 "Gate Valve Product Quality Grading"
JB/T5298-91 "pipeline with the steel plate gate valve"
JB/Z243-85 "Gate Static life test procedures"
JB/TQ648-88 "flat iron on the clip-on valve"
JB/T53200-94 "steel plate gate valve on the clip-on Product Quality Grading"
JB/T53242-94 "steel plate gate valve product quality and grading"
Second, globe valve, throttle
globe valve is a common globe valve is mainly used to connect or disconnect piping in the media, generally not used for regulating flow. globe valves for pressure, temperature range is large, but are generally used for medium and small diameter pipes.
The main criteria for valve
GB12233-89 "general globe valve steel valve and lift check valve"
GB12235-89 "General Valve Flanged steel globe valve and lift check valve"
JB/T53174-94 "Globe Valve Product Quality Grading"
JB/T53165-92 "high-pressure balance valve product quality grading"
GB/T587-93 "marine bronze flanged stop valve"
GB/T590-93 "Marine cast iron flanged stop valve"
GB8464-87 "inside thread connection gate valve, globe valve, ball valve, check valve general technical conditions"
GB8465.2-87 "inside thread connection gate valve, globe valve, ball valve, check valve basic size iron cut-off valve"
III throttle
Throttle is a cross-section by changing the flow channel to control the fluid pressure and flow control valve belonging to class, but because of its structural constraints, there is no control valve adjustment feature, it can not replace the control valve to use.
Cut-off-type throttle valve in structure apart from Kai and the relevant parts of the outer pieces are the same as with the cut-off valve. The pieces are mostly open and close the throttle cone streamlined.
4, Butterfly valve
Butterfly valve is used with the rotating circular butterfly valve stem to open and close pieces of board, in order to achieve open and close the valve action. Butterfly cut off valve is mainly used to use, can be designed to have a regulator or truncated and regulation functions. Medium and large diameter butterfly valve in the current low-pressure pipe used more and more.
The main criteria butterfly
GB12238-89 "universal valve connecting flange and a butterfly clip"
JB/T53171-94 "butterfly valve product quality grading"
JB/Z248-85 "butterfly valve Static life test procedures"
5, check valve
Check valve is automatically prevent fluid backflow valve. Check the valve flap to open under pressure in the fluid, fluid flows from the import side the export side. When the import side, when the pressure lower than the export side of the valve flap in the fluid pressure in itself under the action of gravity and other factors automatically close to prevent fluid backflow.
GB12233-89 "general cut-off valve steel valve and lift check valve"
GB12235-89 "General Valve Flanged steel globe valve and lift check valve"
GB12236-89 "Universal Steel Swing Check Valve"
GB/T13932-92 "Universal Valve Iron Swing Check Valve"
GB/T589-93 "Marine bronze flanged check valve"
GB/T592-93 "Marine flange cast iron check valve"
GB8464-87 "inside thread connection gate valve, globe valve, ball valve, check valve general technical conditions"
GB8465.4-87 "inside thread connection gate valve, globe valve, ball valve, check valve steel valve basic dimensions"
JB/T53036-92 "Check Valve Product Quality Grading"
6, ball valve
Ball is a sphere with a circular hole for hoist parts, rotate the sphere with the stem in order to achieve open and close the valve movement.
The main criteria for valve
GB12237-89 "universal valve steel ball valve connecting flange and butt"
GB/T15185-94 "iron and copper ball valve"
GB8464-87 "inside thread connection gate valve, globe valve, ball valve, check valve general technical conditions"
GB8465.3-87 "inside thread connection gate valve, globe valve, ball valve, check valve basic size steel ball valve,"
JB/T53167-94 "ball valve product quality grading"
JB/Z246-85 "Ball Static life test procedures"
7, diaphragm
Diaphragm Valve is a special form of block valve, which open and close parts is to use a membrane made of soft materials, it will body cavity with the valve cover cavity separated.
8, stopcock
Plug Valve is plug hole of the body as a hoist parts, with the stem-plug rotation, in order to achieve open and close the valve movement.
Stopcock of the cone-plug mostly, but also cylinder, plug valves simple structure, open and close rapidly, the fluid resistance. Plug valves commonly used in pressure is not high-caliber small occasions.
Plug valves are used for cut off media flow, but also for media distribution, three, and four-way plug valves plug valves are used for changing the flow direction of medium or media distribution.
9, plunger valve
10, safety valve
Valves used in boilers, pressure vessels, pressure equipment, as overpressure protection device. When protective equipment abnormal elevation of pressure within the medium reach the required value, the valve automatically opens, and then the whole amount of emissions, in order to prevent the pressure continues to rise, when the pressure is reduced to another provision of value, automatically shut down.
The main criteria for safety valve
GB12241-89 "General requirements for safety valve"
GB12242-89 "safety valve performance test method"
GB12243-89 "spring load safety valve directly,"
ZBJ98013-89 "power plant safety valve technical conditions"
JB/T53170-94 "spring load safety valve directly to product quality and grading"
11, pressure reducing valve
Pressure reducing valve is a valve, which is cutting through the headstock parts will be reduced to a certain inlet pressure required outlet pressure, and can import pressure and flow changes, the use of media outlet pressure to maintain the energy of their own basically unchanged valve.
12, trap
Trap is used for steam pipe network and devices can automatically discharge condensate water, air and other non-condensing gas, and blocking water vapor valve leak
13, the sewage valve
14, regulating valve
The valve for water, steam pipe-line for use as an adjustable flow rate, self-locking pipe network can always maintain a balance.
15, the other valve
Tube Pinch Valve
Emergency shut-off valve and safety accessories
Solenoid
Vacuum Valves
Cylinder valve
Multi-purpose valve
Special valves and special valves
16, valve drive
Manual
Electric
Pneumatic
