GATE VALVE, GLOBE VALVE,CHECK VALVE,BALL VALVE AND FITTINGS OF VALVES
- Ref Price:
-
- Loading Port:
- Ningbo
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 kg
- Supply Capability:
- 1000000 kg/month
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Our company specializes in the production of gate valve, globe valve, check valve. We entered into Russia valve market since the year 2004.Current export of our Company to Russia make USD 6 million per year.
- Q: What type of flange does it fit with the gate valve?
- According to the welding plate flange, flange material selection of piping material.
- Q: The difference between cut-off valve and gate valve
- The working principle is different. The stop valve is an upward stem type, and the handwheel rotates and rises with the stem. Valve is hand wheel rotation, stem upward movement. Flow is not the same, the gate valve requires full open, the cut-off valve is not the same. The gate valve has no inlet and outlet direction requirements, and the cut-off valve has the required inlet and outlet!Gate valve and stop valve are shut-off valve, is the most common two valves.From the exterior, the gate valve is shorter than the cut-off valve, especially the bar valve needs a higher height space. Valve sealing surface has a certain degree of self sealing capacity, its spool depends on the media pressure tight contact with the valve seat sealing surface, to achieve tight leakage. Wedge gate valve spool angle is generally 3~6 degrees, when forced to shut down excessive or temperature changes of the valve core is easy to die. Therefore, high temperature and high pressure wedge gate valve, in the structure have taken certain measures to prevent spool stuck. The valve in the opening and closing valve and valve seat sealing surface contact and mutual friction is always so easy to wear sealing surface, especially in close off the valve, the valve before and after the great pressure, sealing surface wear is more serious.
- Q: greater than DN50 of the pipeline butterfly valve?
- It's not the valve! But the price relationship!
- Q: What else, P54140V, 170V? What do they mean?
- P work pressureP54 temperature at 540 degrees of work pressureThe pressure at P54 100 is 540 at the temperature of 100barV valve for chromium molybdenum vanadium steelP54 pressure 140V temperature at 540 DEG C for 140bar valve for chromium molybdenum vanadium steelP54 pressure 170V temperature at 540 DEG C for 170bar valve for chromium molybdenum vanadium steelFrom the JB/T4018 "valve type model preparation method"The standard unit is MPa, but it is usually used in bar
- Q: Analysis of the advantages of elastic seat sealing gate valve?
- When the elastic seat sealing gate valve is closed, the sealing surface can be sealed only by the medium pressure, that is, the sealing surface of the flashboard is pressed to the valve seat of the other side only by the medium pressure to ensure the sealing of the sealing surface, which is self sealing.
- Q: Does the relief valve have a gate valve?
- With the ball valve, needle valve, with the valve did not see, but there should be some.
- Q: Stainless steel gate valve DN150 200300 weight, who knows?
- It depends on different materials and pressure levels. 304 material, high pressure weight will be much heavier.
- Q: What are the common standards for gate valves?
- 1, product standardsGeneral purpose valves, flanged connections, iron gate valves, GB/T 12232-2005General requirements for steel valves GB/T 12224-2005"Steel flat gate valves for pipelines" JB/T 5298-91Inspection and test of valves. JB/T 9092-1999Standard for safety evaluation of drinking water distribution equipment and protective materials GB/T 17219-1998
- Q: Function of gate valve
- Gate valve is a closed (gate) along the central line of the vertical direction of the valve moving. Valve in the pipeline can only be fully open and fully closed off, can not be adjusted and the throttle. Gate valve is a valve used in a wide range, generally more than 50mm caliber DN block device is selected it, sometimes cut off very small aperture devices are used to gate valve, gate valve is used as cut-off media, when in full flow through the whole, when the media is running a minimal pressure loss. Gate valves are normally used in situations where they do not need to be frequently opened and closed, and the gate is fully open or fully closed. Not used as an adjustment or throttling. For high speed moving medium, the gate can cause the vibration of the gate under the condition of partial opening, and the vibration may damage the sealing surface of the gate and the valve seat, while throttling will cause the gate to suffer the erosion of medium.
- Q: What is the difference between gate valve Z41T and Z45T?
- Valve Z41T and Z45T difference is that "41" is dark rod, that is, the screw is not out of the turbine,"45" is the bright rod, that is, the screw out of the turbine.Common points are copper sealed gate valves.
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GATE VALVE, GLOBE VALVE,CHECK VALVE,BALL VALVE AND FITTINGS OF VALVES
- Ref Price:
-
- Loading Port:
- Ningbo
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 kg
- Supply Capability:
- 1000000 kg/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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