Triple Offset Metal Seated Butterfly Valve for Oil / Gas / Water 0.5 Mpa Air Pressure YS manufacturer from China Zhejiang yongsheng technology co.,ltd.

Triple Offset Metal Seated Butterfly Valve for Oil / Gas / Water 0.5 Mpa Air Pressure

Place of Origin:

Zhejiang, China (Mainland)


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Product Detail

Model No.: YS

Triple Offset Metal Seated Butterfly Valve for Oil / Gas / Water 0.5 Mpa Air Pressure

150lb~600lb Pneumatic piston t

Triple Offset Metal Seated Butterfly Valve for Oil / Gas / Water 0.5 Mpa Air Pressure

150lb~600lb Pneumatic piston triple offset metal seated butterfly valve

Material:WCB,WCC,WC6 etc.

Pressure:150lb~300lb

Application:Steam,Oil,Water etc,

Connnection:Flange

Temp.:-20~+450

ZSHWE Series of Three Eccentric Butterfly Valve, both valve disc and three sealing ring are designed in special three eccentric structure,with characteristics of impact structure, good shut-off performance and long operation life etc, so it has both regulating and shut-off functions; Due to the adoption of the three eccentric structure design, when it is opening and closing, the valve plate and the sealing ring can be quickly disengaged (without friction design), which effectively prevent the seal ring from wearing; The valve seat and the sealing ring adopt the replaceable structure design, allowed client to repair and replace conveniently; Its low torque advantage, can really realize the bidirectional zero leakage, small flow resistance and large rated flow coefficient which could be widely used to cut off and regulate the processing fluids, such as metallurgy, oil,chemical engineering,electric power,natural gas.

Characteristics

One-piece casted body with the feature of compact structure and lightweight
The triple offset valve advanced design features three-way eccentricity and unique elliptical seat geometry ensuring compressive sealing around the entire seat and a tight, bubble free valve.
Sealing ring design is novel, concise, free repair
- Stainless steel and graphite laminated seal ring provides reliable, zero leakage, bi-directional shutoff
Triple offset structure ensure non-rubbing rotation, minimizing torque required and maximizing seat/seal ring lifetime

Seat:304,316+STL

Laminated seal ring:304+Graphite,304+PTFE

Metal to metal seat ring:304+Graphite,304+PTFE

Cover:ZG2Cr13

Body:WCB,CF8,CF8M

Retaining plate:WCB,CF8,CF8M

Retaining ring:WCB,CF8,CF8M

Disc:WCB,CF8,CF8M

Stem:2Cr3,17-4PH

Bearing:QAL9-4

Table 1

Main Performance Parameter

Table 2

Item	Description		Pneumatic triple offset butterfly valve	Electric triple offset butterfly valve
1	Basic error(%)		±2.5	±2.5
2	Hysteresis(%)		2.5	2.0
3	Dead zone(%)		2.0	3.0
4	Travel difference between start and end(%)	Start	±2.0	±1.5
		End
5	Rated angle deviation(%)		+2.5	+0.5
6	Rated flow coefficient deviation(%)		+10