China Butterfly valve manufacturer,factory and supplier-Butterfly valve

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Address: NO.720, Suide Road, Jiading District,Shanghai, China.
Ball valve manufacturer   

Gear operated lug butterfly valve

  • Port size:DN50-DN600;2''-24''
  • Pressure:PN10/16,150LB,JIS5K/10K
  • Structure:Concentric,rubber lined body
  • Medium:Water,air,etc.
  • Temperature :-20~150ºC (according to rubber material)
  • Body material:Cast iron, ductile iron, carbon steel,stainless steel
  • Connection:Lug end
  • Feature:Different operation is for option.
Gear operated lug butterfly valve provides bi-directional service without a downstream flange, and bubble-tight shutoff. Gear operated lug butterfly valves is installed using bilateral screws (and no nuts),which can be adapted for all types of fluid and constraint and, like WAFER, LUG butterfly valves have two friction points.Gear operated lug butterfly valve is ideal for commercial and some light industrial process applications, including HVAC and vacuum services, in addition to hot and cold potable water.

Gear operated lug butterfly valve is available in pressure rating of PN 10, PN 16, Class 150,which is available in body and disc material of cast Iron, ductile iron, carbon steel (WCB), SS 304 (CF8), SS 316 (CF8M) or other material.Gear operated lug butterfly valve comes with wide range of Rubber Liner Options like Black Nitrile, EPDM, Viton, Hypalon, Silicon etc and metal seated structure for sever working condition.

Gear operated lug butterfly valve operation options include lever, gear unit, motorized, electrical actuator,pneumatic actuator (double / single acting).Gear operated lug butterfly valve can also be supplied with special arrangement of long neck, extended stem, locking arrangement, limit switch and chain wheel operator.The lug style body has universal design to fit between pipe flanges of almost all popular flange standards.

Gear operated lug butterfly valve specification
Design Standard BS 5155 / API 609 / AWWA C 504 Standard
Inspection & Testing Standard BS EN 12266 – I (BS 6755-I) / API 598 / ISO 5208
Flange To Flange Distance As Per ANSI B 16.10 / BS 5155 / API 609
End Connection Wafer Type To Suit Between Two Flanges
  ANSI B 16.5, Class 150 / 300
BS 10 Table D / E / F / H
PN 6 / PN 10 / PN 16
DIN Standard / JIS Standard / IS Standard
Manufacuring Size Range 2″ (DN50) to 24″(DN 600)
Pressure Rating of Valve 150# 
PN 10 / PN 16
Valve Operation Manual Flow Control Lever / Worm-Gear Actuator Operated
Pneumatic Actuator (Single Acting Spring Return / Double Acting)
Motorized Electrical Actuator Operated Single or Three Phase Power Supply
Valve Seat Leakge Leakage Class VI (Zero Leakage)

Gear operated lug butterfly valve feature
1. Integrally molded seat liner on the body, which ensures excellent dimensional stability & guaranteed seat tightness.
2. Seat liner extending on to the contact faces ensures perfect sealing and eliminates the need for separate flange gaskets.
3. Unique triple sealing system for shaft sealing ensures zero leakage of the media past the shaft seals.
4.Narrow land disc ensures perfect sealing with least operating torque requirements.
5.A fully universal body design ensures fitment of the valve between companion flanges of all popular standards (ANSI, BS, DIN, JIS, GB.etc. ).
6. Several position notch disc and hand lever ensures locking of the valve in 8 intermediate position in addition to closed and open position. Hand
7. Lever lockable through pad lock for tamper proof positioning.
8. Body castings made of superior material to ensure additional strength.
9. Lug butterfly valve disc made of ductile cast iron instead of cast iron to withstand against possible water hammer or pressure surges.
10. A truly line size body bore to ensure maximum flow capacity with the lowest pressure drop.
11. Shafts made of martensitic stainless steel to ensure maximum strength and torsional rigidity.
12. Both top and bottom shaft swiveling are guided by self – lubricated bearings.

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