• Model Number: YDF
• Brand Name: ZC
• Place of Origin: Zhejiang, China
• Minimum Order Quantity: 1 SET
• Supply Capacity: 5000/month
• Payment: T/T
• MemberShip: Free Member
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YDF Dome valve Description

Structural Features

1 Its sealing surface adopt silicone rubber inflatable seal to guarantee zero leakage

2 The valve adopts double electromagnetic control and dedicated solenoid valve are used for control of both actions

Working Principle

When the valve is close , the dedicated solenoid valve for the pneumatic actuator will act ;the pneumatic actuator will drive the  ball to  rotate to the closing position through the valve stem , triggering the changeover push  rod ;and then the gasket ring will be inflated to compress the ball surface to produce a seal .When the  valve is open , the dedicated solenoid valve for the  gasket ring will exhaust rapidly and disengage itself from the ball surface to a free state ; then the dedicated solenoid for the pneumatic actuator will act ,and the cylinder will drive the  ball to rotate to open position

Main Material and parts

No

Name

Material:

Item

Name

Material

1

Body

WCB

6

Body

WCB

2

Stem

1Cr13

7

Spacer Ring

F6a

3

Ball

WCB+HCr

8

Swing Bar

Q235

4

Stem

1Cr13

9

Yoke

Q235

5

Sealing Seat

Fluorine Rubber

10

Pneumatic

Assembly

Application Specification

Design &Manufacture

GB/T12224

Connection Enddimension

Structure

Manufacture’s Standard

Flange Dimension

Manufacture’s Standard

Test & Inspect

GB/T 9092

Material

Carbon Steel

GB /T 12229

Stainless steel

GB/T12230

Mark

GB/T 12220

Supply

GB/T 12252

Installation ,Use and Maintenance

1 Before installation , it is necessary to clean the valve and remove possible defects caused in the transportation process .

2. Check carefully whether marks and the name plate on the valve meet operating requirements

3 . Note the flow direct indicated on the valve body in installation .

4.This valve shall be fully open or fully closed in running and not be used as throttle valve

5.For long-term storge ,it shall be stored in a dry and ventilated room with periodic check  to avoid rust

6, Knocking shall be avoid in the transportation process