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Zhejiang yongsheng technology co.,ltd.

[Province: Zhejiang ]

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low noise multi stage industrial water shut off valve Pneumatic diaphragm intelligent

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low noise multi stage industrial water shut off valve Pneumatic diaphragm intelligent

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Pneumatic diaphragm intelligent low-noise multi-stage depressurecage control valve

YSIQ(D)34 Series of Intelligent Low-Noise Multi-Stage Depressure Cage Control Valve is a kind of pressure-balanced control valve. It uses cage oriented balanced plug type, double hard sealing and impact structure with S streamline flow type, make it applicable for high temperature, high pressure head and low noise condition, to meet customers operation requirements.

Working principle:

The equipped smart positioner will convert to valve required settings when receive normal signal of electricity or signal of computer. Then the pneumatic actuator linear displacement will change to angular displacement by valve special connections, and tested by position transducer then feedback to microprocessor.

The microprocessor will compare the actual valve feedback with original settings and tested if there is any deviation. It will output pulse width modulation command(PWM) to piezoelectric valve according to the the size and direction of deviation. The piezoelectric valve will regulate the input or exhaust gas under the control command.

Main Parts Materials Table 1

Item	Part Name	Material
1	Body	WCB	WC6	CF8	CF8M
2	Plug	304,316/Partial Stellite			316/Partial Stellite
3	Cage	304,316/Partial Stellite			316/Partial Stellite
4	Stem	304,316			316
5	Bonnet	WCB	WC6	CF8	CF8M

*Above is the common materials, the specific grades take the contract as a standard.

Specification &Technical Parameter Table 2

Type	Cage Guide
Nominal Diameter	DN40DN400(1-1/2”16”)
Nominal Pressure	PN16,25,40,64,100(150lb,300lb,600lb)
Flow Characteristic	Equal Percentage, Linear
Rangeability	50:1
Bonnet Form	Standard Type:Cast Steel :-20250 Stainless Steel:-40250
	Cooling Fin Type:Cast Steel:-29425 Stainless Steel:-40450
	Low-Temp. Type:Cast Stainless Steel:-60-100,-100-200,-200-250
Seat Leakage	ANSI