Custom Made Clamp Butterfly Valve / Water Supply Manual Butterfly Valve

Product Specification

Custom Made Clamp Butterfly Valve / Water Supply Manual Butterfly Valve

Clamp Butterfly Valve Application

Clamp Butterfly Valve  Features:                  

⊙ Sealing reliable

Body and disc made of ductile iron which promote the impact resistance and pressure-bearing 

capacity, sealing ring made of rubber and valve seat’s sealing surface is conical shaped, make the 

sealing capacity more reliable.

⊙ Excellent corrosion protection

Inside electrostatic epoxy resin power coating or vitreous enamel(upon request), outside electrostatic

 epoxy resin power coating.

Mail part & material 

Body, Disc: GGG50 with internal and external epoxy resin coating 

Stems: 1Cr17Ni12Mo2Ti, Stainless steel min.13%Cr 

Bushing :Bronze CuAI10Fe3

Seal ring, O-ring: NBR, EPDM or FPM 

(DN250 10inch butterfly valve)

face to face length: 10 inch valve length be 8inch(203mm).

Body Ductile Iron w/Fusion Bonded Epoxy ASTM A536 65-45-12

Disc Ductile Iron w/316SS Edge w/Fusion Bonded Epoxy ASTM A536 65-45-12

Seat NBR Vulcanized on Body (Buna-N)

Shaft Type 316 Stn. Stl ASTM A276 Ty316

Packing V-Ring NBR (Buna-N)

Flanges ANSI B 16.1 Class 125

Clamp Butterfly Valve Specifications:
 
Size: DN50 - 3000 
Temperature: -15℃ - 150℃ 
Pressure: 1.0MPa/1.6MPa 

Clamp Butterfly Valve Standard

Design: EN 593, EN 1074-1&2; IS 13095 Double Eccentric DoubleFlanged Butterfly Valve;

Face to Face in acc. EN 558 / ISO 5752 series 14;

Flange Drilling in acc. to EN 1092-2;

Worm Gear Box with Hand Wheel;

ISO 5211 Mounting Flange standard;

Testing in acc. EN 12266-1;

Fusion Bonded Non-toxic Epoxy Powder Coating w/o NSF61/WRAS

Main external and connection dimension

1.0MPa                                                  mm

1.6MPa                                              mm 

2.5MPa                                              mm

1. BRIEF INTRODUCTION: 

The butterfly valve is operated by the disc rotating form 0° to 90°, can be applied to cut off or regulate

 the flow of medium. 

The valve can be actuated by operating lever, handle wheel electric actuator or pneumatic actuator. 

Widely used for potable water supply, waste water treatment, electric power plant, gas supply, 

warm-air system, smelting plant, ship building, textile, petroleum, chemistry, or other light industries.

2. Specification

3. FEATURES 

⊙ EPDM seated, good seal 

⊙ Low weight                    

⊙ Low flow resistance

⊙ Small operation torque

⊙ Easy to install and maintain            

⊙ Open-close 90° more smoothly

4. APPLICABLE STANDARDS 

1.  Design according : API 609

2.  Test standard according: JIS B2003

3.  Connect flange standard according: JIS B2212

4.  Face to face standard according: JIS B2002

5. Item Name of part Material Spec 

6.  Operation:

6.1.  The two pipe flange should be smooth.

6.2.  Put the butterfly valve in the pipe line, fixed the orientation hole first.

7.  Delivery:

When delivery or store the butterfly valve, should keep in dry and cool environment.

8. Note:

8.1.  Pipe flange should same as the butterfly valve flange. 

8.2.  Check the valve before installed, the environment should correspond to the butterfly valve 

         specification.

8.3.  Before open butterfly valve, checking the disc without dirt.

8.4. The disc must be shut off place when installed.

8.5. Adjusting the pipe connect before installed.

8.6. The connect flange should be parallel.

8.7. After installed, the pressure test disc should be open place.

8.8. If the butterfly can not natural open or close, please kindly check it careful, can not strike, tamp or 

       use extension lever.

8.9.  When maintenance or operation, must check the stem, lever, gear box or actuator have correctly 

        connect. Otherwise the stem will be push by pipe pressure.

9.   The malfunction and resolving:

10. Maintenance

Open the worm box cover and add some butter per two months.

Check the seal, packing and flange, if leak, please maintain ASAP.

 
Wafer Rubber Seated Butterfly Valves

Product Advantages:

1) Small in size and light in weight and maintaince.
   It can be mounted whereever needed.

2) Simple, compact structure, quick 90 degree on-off operation.

3) Disc has two-way bearing, perfect seal, without leakage under 
   the pressure test.

4) Flow curve tending to straight-line. Excellent regulation performance.

5) Various kinds of materials, applicable to different medium.