Rx Dn100 Stainless Steel Wafer Butterfly Valve

Product Description
 

Stem diameter: for multiple rotating open stem valves, do not assemble into electric valves.Therefore, if the maximum stem diameter allowed by the electric butterfly valve device does not pass through the stem of the provided valve, the inner diameter of the hollow output shaft of the electric device must be greater than the stem outside diameter of the open stem valve.For local rotary valve and the dark stem valve in multi-turn valve, although do not consider the stem diameter through the problem, but in the selection of the size of stem diameter and keyway should also be fully considered, so that its assembly can work normally.

 

Operating torque: operating torque is the most important parameter for selecting valve electric device.The movement process of the electric butterfly valve can be controlled by stroke, torque or the magnitude of axial thrust.Because the working characteristic and utilization rate of valve electric device depend on the type of valve, working standard and the position of valve in pipeline or equipment, the valve electric butterfly valve device is the indispensable equipment to realize valve program control, automatic control and remote control.Therefore, the correct selection of valve electric device is essential to prevent overload phenomenon (the working torque is higher than the control torque).In general, this is the basis for proper selection of the valve electric butterfly valve device.

 

The output torque of the electric device shall be 1.2-1.5 times the maximum operating torque of the valve.

 

Operating thrust of electric butterfly valve: there are two main structure of valve electric device: one is equipped with thrust plate, the output torque is converted to output thrust through the stem nut of the thrust plate, and the direct output torque;The other is not equipped with a thrust plate.

 

Output shaft rotation number: the number of output shaft rotation number of valve electric device is related to the nominal diameter, stem pitch and number of thread.It shall be calculated according to M=HZS(H is the height of valve opening, M is the total number of rotation rings to be satisfied by the electric device, S is the screw pitch of valve stem drive and Z is the number of screw threads of valve stem).

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By connection:

 

1. Clamp butterfly valve

 

The disc of the clamp butterfly valve is installed in the diameter direction of the pipe.The valve is fully open.

 

The wafer butterfly valve is simple in structure, small in size and light in weight.Butterfly valve has elastic seal and metal seal two types of seal.Elastomeric sealing valve, sealing ring can be embedded in the body or attached to the disc around.

 

2. Flanged butterfly valve

 

The flanged butterfly valve is a vertical plate structure, and the stem is an integral metal hard seal valve seal ring

 

It is a composite structure of flexible graphite plate and stainless steel plate.The sealing ring of the soft sealing valve is made of nitrile rubber and installed on the disc.

 

3. Lug butterfly valve

 

4. Welding butterfly valve

 

Welded butterfly valve is a kind of closed type butterfly valve, widely used in building material, metallurgy, mining, power production process such as medium temperature 300 ºC or less on the pipe nominal pressure of 0.1 Mpa, to connect and open/close or adjusting medium quality.

 

 

Sealing cover material:

 

(1) soft-seal butterfly valve.

 

1) the sealing side is composed of non-metal soft materials to non-metal soft materials.

 

2) sealing side is composed of metal hard material and non-metal soft material.

 

(2) metal hard seal butterfly valve.The sealing side is composed of metal hard material to metal hard material.

 

By seal:

 

(1) seal the butterfly valve compulsively.

 

1) resilient seal butterfly valve: seal specific pressure is produced by disc compression of seat, seat or disc elasticity when the valve is closed.

 

2) external torque seal butterfly valve: the seal specific pressure is generated by the torque applied on the valve shaft.

 

(2) compression seal butterfly valve: the seal specific pressure is generated by the charging of the cartridge seal element on the seat or valve plate.

 

(3) automatic sealing butterfly valve: the sealing specific pressure is automatically generated by the medium pressure.

 

By working pressure:

 

(1) vacuum butterfly valve.A butterfly valve whose working pressure is lower than the atmospheric pressure of standard reactor.

 

(2) low pressure butterfly valve.Butterfly valves with nominal pressure PN<1.6MPa.

 

(3) intermediate pressure butterfly valve.Butterfly valves with nominal pressure PN of 2.5- 6.4MPa.

 

(4) high-pressure butterfly valve.Nominal pressure PN is 10.0--80.0MPa butterfly valve.

 

(5) extra-high pressure butterfly valve.Butterfly valve with nominal pressure PN>100MPa.

 

By operating temperature:

 

(1) high temperature.T > 450 ° C of butterfly valve.

 

(2) moderate temperature butterfly valve.120 C < t < 450 ºC of butterfly valve.

 

(3) normal temperature butterfly valve.A 40 C < t < 120 ° C of butterfly valve.

 

(4) low temperature butterfly valve.A 100 < t < 40 ° C butterfly valve.

 

(5) ultra-low temperature butterfly valve.A 100 ° C t < butterfly valve.

Packaging & Shipping







Company Information

Tianjin Ruixin Tongda Valve Co., Ltd. was founded in 2013 and is located in Tianjin. Near the TiANJIN seaport and it is about half an hour to Beijin airport.

Our company is mainly manufacturing for all kinds of valves and mainly for the production of fire-fighting butterfly valve, fire alarm valve, fire deluge valve, fire hydrant, drain valve, butterfly valve, check valve, stop valve, gate valve, ball valve, diaphragm valve which is used in the field of fire fighting, building, water conservancy, vessel, petroleum and power station etc.




FAQ

1. Are you a factory or the trading company?

We are manufacturing factory and we have the export licensed

2. Do you have any guarantee on the quality of your valves?

The quality assurance is one year.

3.What is you leading time?

20GP is 15 days, and 40GP is 20 days

4.Which port are you shipping?

Tianjin Port

5.Can we print the LOGO on products?

Yes, and we support the OEM.

6.Do you have any certification?

Yes, we have 9 patents for the products.

7.Why can we trust that you will deliver goods after remittance?

Answer :We are the honest merchant.and you will get the assurance from ALIBABA if you choose us, https://tjrxtdv.en.made-in-china.com

8.We are always ready for providing the sample and producing some small orders, in order to meet the business well. We are always ready to hear from you.