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3 Way Water Shut Off Valve Triple Offset for Chemical / Power / Light Textile Industry

Place of Origin: Zhejiang

Company Profile

Location: Hangzhou, Zhejiang, China (Mainland)
Business Type: Manufacturer
Main Products: Automatic Control Valve, Pipeline Ball Valve, Metal Seated Ball Valve

Product Detail

Model No.: YS

Product Description

3 Way Ball Valve Triple Offset for Chemical / Power / Light Textile Industry

 

WCB Pneumatic piston triple offset carbon steel on-off butterfly valve

 

General

ZSHWE/ ZDRWE Series triple offset butterfly valve provides a bidirectional bubble tight shut-off to API 598. This geometry ensures that the disc seal contacts the seat only at the final shut-off position without rubbing or galling, providing a torque generated resilient seal with sufficient “wedging” to ensure a uniform seal contact. Our butterfly valves are widely used in the chemical, power, light textile, food, pharmaceutics, pulp and paper and other severe application.

 

Specification:

Nominal Pressure: Class 150lb,300lb

Nominal diameter range:DN801200(3”48”)

Fluid temperature range:-60+450

Flow characteristic is approximate equal percentage.

 

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

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

 

Specification and Technical Data

Table 3  Rated flow coefficient

DN(mm)

80

100

125

150

200

250

300

350

400

Rated Kv

200

405

620

1150

2030

3150

4550

6200

8100

Pneumatic

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