Concentric Butterfly Valve in Lug Type with Pin

Concentric Butterfly Valve in Lug Type with Pin
 

1. Industrial Use

The butterfly valves are widely used in piping of chemical, food, medicine, paper making, water and electricity, shipbuilding, water supply and drainage, metallurgy and energy systems, and is available for regulating and closure devices in a variety of corrosive, non - corrosive gas, liquid, semi-liquid and solid powder pipelines and containers.

1. Performance Specification

Note: Applicable temperature and mediums are depending on the materials of different valve seats, bodies, stems and discs, see table 1 and table 2:

Regular Material of the Main Parts (Table 1)
Properties of Valve Seat (Table 2)

1. Cv Values

Cv values-Valve Sizing Co-efficiency (US-GPM @1ΔP)











Butterfly Valve in Lug Type with Pin


Materials:
Body: Ductile iron, cast iron, stainless steel and WCB
Disc: Stainless steel, Al-bronze and ductile iron
Shaft: Stainless steel (spline shaft without pins)
Seat: EPDM, NBR, Viton and PTFE
General design: API 609
Face-to-face: API 609 and EN 558 1 to 20 series
Flange drilling: ANSI class 125/150, class 300 and DIN PN10/16/25/40 JIS10K/16K
Actuating form: Hand lever, worm gear, electric actuator and pneumatic actuator
Size: DN25 to DN1200

1. Double hale-stem butterfly valve is single and compact in structure and light in weight, and easy for assembly and disassembly.
2. The operating torque of it is small, then tuing 90(it can open or clese with light and fast action)
3. It is small in flowing resistance and good in energy-savinng effect, with discharge characteristic approximating inxlined straight line.
4. It is featured by reliable sealing, zero leakage with ten thousands of opening and closing time
5. The valve can be made of various materials, adapted to all kinds of media.
6. It is used in the piplinge and vessels for conbwying various corrosive and mon-corrosice flui media in the engineering systems of water supply, generating, petroleum, gas, environmental protection and also for regulating and cutting off the off the floeing of media.

Our service:
Our low price, good quality products, and promised delivery time brought the trust of clients globally. If you are interested in our products, kindly please inform me, we are glad to prepare a quotation for your purchasing reference and quite sure our offer will extend an added advantage over to your current source of supplier. Futhermore, we are also able to process order as per your demand.