Butterfly Valve The Pin Spline or Square Connection China

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$500.00 - 1,000.00 / pc
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9999 pc/month

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Product Description:

Wafer butterfly butterfly plate installed on the diameter of the pipe direction. Cylindrical channels in butterfly valve body, disc disc around the axis of rotation, rotation Angle for 0 ° and 90 °, can have the effect of flow control, when the butterfly plate rotation to 90 °, the maximum opening of the valve. The wafer butterfly valve has simple structure, small volume, light weight, only by a few parts. And only need to rotate 90 ° can rapid opening and closing, simple operation, at the same time, the valve has good flow control characteristics.


Quick Details

Standard or Nonstandard: Standard Structure: Butterfly Pressure: Low Pressure Power: Manual Material: Casting Temperature of Media: Normal Temperature Media: Water Port Size: DN40-DN1200 Place of Origin: China (Mainland) Wafer type: butterfly valve Packaging & Delivery

Our product features are as follows:

1.Newly developed facilities ensure high and stable quality.

2.Enable to supply UL/FM valves.

3.Experienced technology

4.Excellent after-sale service to satisfy customers.

5.Sufficient capacity ensures prompt delivery.

6.Continuous quality improvement and new designs development.

7.Reasonable and stable price

8.Meets different countries standards,such as ANSI,DIN,BS etc.

Packaging Details: Plactic bag+Paper cover+Plywood cases 

Delivery Detail: Within 20 days 


Wafer type  butterfly valve 

1.Design standard:ISO,BS,API 



4.Center lined disc 

Wafer type butterfly valve 

Technical Data

DN40-DN1200mm PN1.0-1.6MPa

General Design:ISO 5752 / BS 5155 / API 609

Body: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel

Seat: EPDM, PTFE, NBR,Viton

Stem: Stainless Steel, Steel,

Disc: Ductile Iron with Nickel Coating,Ductile Iron with Nylon Coating, Stainless Stee 304/316l, Alu-Bronze,Duplex steel

Flange Connection:DIN,ANSI,JIS,BS


Material Specification




Valve Body

cast iron

A126 Class B

ductile iron

A536 Gr.65-45-12

Valve Disc

ductile iron

A536 Gr.65-45-12


B148 C95400

stainless steel 304

A351 CF-8

stainless steel 316

A351 CF-8M

Valve Shaft

stainless steel 410

A276 S 410 00

stainless steel 431

A276 S 410 00

Valve Seat Ring










B62 C83600





Product Features

Wafer type flanged body style fit between FF or RF flanges

PTFE bushing ensure the maximum shaft support and centralized alignment

360°polished disc assures positive on-off

Hard-Backed Cartridge seat or Edge-Boot seat

The pin,spline or square connection are all available

Universal ISO 5211 mounting pad.



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Q:Does the wet alarm valve group need to install the signal butterfly valve?
The wet alarm valve group shall be equipped with signal butterfly valve.The signal butterfly valve is generally installed in two parts: floor level, dry pipe, flow indicator front end, trunk pipe, wet alarm valve, front end.Floor level pipe installation is a function of the signal valve, when the floor spraying system needs repair, close the valve, open the end of the floor drain, emptying the water in the spray system, maintenance;
Q:What is an electric two position butterfly valve?
It's an electric valveProduct brief:  Electric double position butterfly valve, this product is connected with flange type, clip type. Material: cast iron, carbon steel, stainless steel, 304/316Product overview   Electric double position butterfly valve (soft seal) is suitable for temperature less than 200 DEG C, adjust the flux and closure of the role of the medium nominal pressure is less than 1.6MPa of food, medicine, chemical, petroleum, electric power, textile, papermaking, water supply and drainage, gas pipeline.  main features1 reasonable and novel design, unique structure, light weight, rapid opening and closing.2 operating torque is small, easy to operate, saving smart.3 can be installed in any position, convenient maintenance.4 seals can be replaced, reliable sealing performance to achieve two-way seal zero leakage.5 sealing material aging resistance, corrosion resistance, long service life etc..Electric double position butterfly valve adopts standardDesign standard: GB/T12238-1889Flange size: GB/T9113.1-2000; GB/T9115.1-2000; JB78Length: GB/T12221-1889Pressure test: GB/T13927-1992; JB/T9092-1999
Q:How does the pneumatic butterfly valve control the angle of opening?
This is really not good, control seems to be pneumatic defects, can only rely on the feeling
Q:What's the difference between a butterfly valve and an eccentric butterfly valve? What is the difference in field applications?
Eccentric butterfly valve and ordinary butterfly valve, when the butterfly valve is opened, the eccentric butterfly valve sealing surface will reduce great wear, in the opening, the disc will leave the valve at the first time the sealing surface!
Q:Should I connect the butterfly valve before and after the pump? Or gate valve?
This situation should use gate valveBecause it has the following advantages:1, the fluid resistance is small, the sealing surface by the erosion of small and medium Chong brush.2, opening and closing more effort.3, medium flow unrestricted, no disturb, do not reduce pressure.4. The shape is simple, the structure length is short, the manufacturing technology is good, and the scope of application is wide.Butterfly valve main deficiency is that it uses the pressure and temperature range is small.And poor sealing. Therefore, the gate valve should be preferred.Of course, there is also a multi-functional pump control valve is also very good, dedicated to the water supply system. Connection URL: (Reference), you can look at yourself, and I hope to help you.
Q:Are fire fighting signal valves and signal butterfly valves the same thing?
The same nature: both can open and close, there is also information back fed.Signal valves are collectively referred to as signal butterfly valves.
Q:What is the difference between turbine butterfly valve and flanged butterfly valve?
Their models are different, the structure is different, they are the main driving part, different worm gear and straight rod distinguish, all belong to the flange valve.
Q:What's the meaning of butterfly valve d371po?
According to the provisions of the JB/T 308-2004 valve type programming method:D== butterfly valve3== transmission: worm gear7== connection mode: clip type1== structure: midlinePo== sealing surface material: lining PoPo== propylene oxide (PO)
Q:how to get a valve out of combustion chamber?
The valve head is larger then the valve port, so it's not coming out of there. Pull the head.
Q:What are the butterfly valves models?
Divided by work pressure:(1) vacuum butterfly valve. Working pressure is lower than the standard atmospheric pressure butterfly valve.(2) low pressure butterfly valve. Butterfly valve with nominal pressure PN<1.6MPa.(3) medium pressure butterfly valve. Butterfly valve with nominal pressure PN 2.5--6.4MPa.(4) high pressure butterfly valve. Nominal pressure PN is 10. 0--80.0MPa butterfly valve.(5) ultra high pressure butterfly valve. Butterfly valve with nominal pressure PN>100MPa.At work temperature:(1) high temperature. T>450 degrees C butterfly valve.(2) medium temperature butterfly valve. 120 C

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