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U Type Butterfly Balve

U Type Butterfly Balve

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  • U Type Butterfly Balve
  • U Type Butterfly Balve
  • U Type Butterfly Balve
  • U Type Butterfly Balve

Short length of face to face, more shorter than the common flanged butterfly valve, convinient for installed to narrow places.
O-Ring: Helps prevent shaft leakage.
Precision Taper Pin: Ensure positive vibration proof, shaft to disc connection. Field replaceable.
Precision Disc Profile: Provides bubble-tight shut-off and assures maximum effective torque and longer seat life.
Supported Shaft Seal: Bonding of elastomer to phenolic backing ring protects against shaft leakage, a common cause of distortion and deformation.
Applicable to both gaseous mediums and liquid mediums.
Bi-directional shutoff.
Optional maintenance pipeline terminal.

Specification:
Size: DN50-DN1200
Design standard conform to: MSS SP-67, API609, BS EN593
Connection flange conform to: DIN PN10/16/25, ANSI B16.1, BS4504, ISO PN10/16,
JIS B2212/2213, BS 10 Table D, BS 10 Table E
Top flange conform to: ISO 5211
Face to face conform to: API609, ISO5752 series 20, BS5155
Test standard conform to: API598

Pressure & Temperature ratings:
Working Pressure PN10 / PN16
Testing Pressure Shell: 1.5 times rated pressure,
Seat: 1.1 times rated pressure.
Working Temperature -10°C to 80°C (NBR)
-10°C to 120°C (EPDM)
Suitable Media Water, Oil and gas.


Materials:
Parts Materials
Body Cast iron, ductile iron
Disc Nickel ductile iron / Al bronze / Stainless steel
Seat EPDM / NBR / VITON / PTFE
Stem Stainless steel / Carbon steel
Bushing PTFE
“O” ring PTFE
Worm gearbox Cast iron / Ductile iron
This kind of butterfly valve is widely utilized in foodstuff, pharmacy, chemical industry etc. and industrial environmental protection, water treatment, high building, water supply and drain tubing line open or close or adjusting medium

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