Triple Offset Butterfly Valve Manufacturer – B16.34 API 609 Lugged Butterfly Valve – Guangwo Valve

Lugged Butterfly Valve

Pressure: Class(Lb): 150Lb, 300Lb, 600LB, 900LB
Size: DN(mm): 50-600  (inch): 2″-24″
Working temperature: -46—425ºC
Seal: three-eccentric sealing, triple offset
Type of connection: Lugged
Operator: pneumatic,electric,hydraulic,manual lever,worm gear
Body & disc material: Casting (A216 WCB, WC6, WC9, A350 LCB, A351 CF8, CF8M, CF3, CF3M, A995 4A, A995 5A, A995 6A), Alloy 20, Monel, Inconel, Hastelloy
Stem material: ASTM A105, F6a, 304, 316
Seat material: Cr13 stainless steel,hard alloy,fluoro plastics
Sealing face material: Stainless steel, STL
Suitable medium: Water, oil, gas, steam, acids
Design & manufacture.: ANSI B16.34, API609, MSS SP-68, JIS B2032, JIS B2064
Face to face.:  ANSI B16.10, API609, MSS SP-68
Connection dimension: ANSI B16.5, API 605, JIS B2212, JIS B2214
Test: API 598

Design Description:
- Low friction between seat and disc of valve
- “Zero Leakage” Sealing Design
- Standard Laminated Resilient Disc Seal to 800°F (427°C)
- One Piece Shaft
- Low torque enables the compact actuator and a  long cycle life
- Blow-out proof shaft
- Optional stem extension
- Optional locking device

Application & Function:
Lugged Butterfly valve is used to prevent galling and scratches between the metal seat and the metal disc due to its unique design. The only time where the seal comes into contact with the seat is at the point of complete closure. Triple offset valves are generally used in applications which require bi-directional tight shut-off in oil and gas, LNG/NPG terminal and tanks, chemical factories, and shipbuilding. They are also used for dirty/heavy oil to prevent extrusion.

Accessories:
Accessories such as gear operators, actuators, locking devices, chain wheels, extended stems and bonnets for cryogenic service and many others are available to meet the customer’s requirements.