48 inch Pneumatic Flanged Butterfly Valve , DN50-1200 Wafer Type Butterfly Valve

48 inch Pneumatic Flanged Butterfly Valve , DN50-1200 Wafer Type Butterfly Valve

Quick Detail: 

1. Size: NPS 2-48” (DN50-1200)
    
2. Pressure Rating: 16 - 40 bar 
    
3. Ends Connection: Wafer, lug and double flanged type
    
4. Operation Methods: manual, worm wheel, electric and pneumatic
    
5. Working temperature: -30 to 230°C
    
6. Materials:
   1. Body: cast iron, carbon steel, 304S and aluminum bronze
       
   2. Disc: Ni-plated ductile iron, nylon coated ductile iron, aluminum bronze and monel
       
   3. Shaft: 416S, Sand316S. S, 17-4PH
       
   4. Seat: EPDM, high temperature EPDM, food grade EPDM, NBR, abrasive-
      
      resistant NBR,
       
   5.  Viton, high temperature Viton, Hypalon, silicone rubber PTFE over EPDM, PTFE over 
      
      NBR, neoprene 
       
   6. Bushing: glass backed PTFEl

Description:

Reliable in sealing, more it closes, tighter sealing 

Suitable for medium pressure pipes with nominal pressure between 16 and 40MPa 

At time of opening, disc can separate itself from seat promptly, thus friction torque low 

Adjustment can be done for compensation if valve seat worn, thus prolonging service life 

Sealing face of valve seat made of PTFE, which suitable for temperature between -30 and 230°C 

Applications: 

Large, medium & small oil, gas, water, steam conservancy, Chemical, heating equipment industry etc. 

Specifications:

Description of Wafer Type Butterfly Valve
Size	NPS 2-48” (DN50-1200)
Pressure Rating	16 - 40Mpa
Certificate	ISO9001, API6D, CE, FIRE PROOF
Base Material	Body: cast iron, carbon steel, 304S and aluminum bronze Disc: Ni-plated ductile iron, nylon coated ductile iron, aluminum bronze and monel Shaft: 416S, Sand316S. S, 17-4PH  Seat: EPDM, high temperature EPDM, food grade EPDM, NBR, abrasive-resistant NBR, Viton, high temperature Viton, Hypalon, silicone rubber PTFE over  EPDM, PTFE over NBR, neoprene  Bushing: glass backed PTFEl
Drive	Manual, worm wheel, electric and pneumatic
Packing	Wooden cases, pallet, containers
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