Delivery Time:7-15 working days after received your payment
Certification:CE,TRCU,ISO9001

Handwheel Automatic Control Valve for Water / Oil / Steam Pressure Balanced

Pneumatic diaphragm intelligent high differential pressure cage control valve with handwheel

YSIQ(D)33 series of intelligent cage control valve is a pressure-balanced control valve which uses a cage guide balanced plug and a double hard sealing structure. It has a compact structure and its flow pipe is S streamline which make it applicable in any circumstances which contain high temperature, high pressure difference and low noise. This would meet the requirements from different users.

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	DN40～DN400(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 :-20～250℃   Stainless Steel:-40～250℃
Cooling Fin Type:Cast Steel:-29～425℃  Stainless Steel:-40～450℃
Low-Temp. Type:Cast Stainless Steel:-60～-100℃,-100～-200℃,-200～-250℃
Seat Leakage	ANSI Ⅳ

Main Performance Index                                                             Table 3

No.	Item	Standard Type	Fin-Extension Type, Low-Temp. Type
1	Basic Error＜(%)	±1	±2.5
2	Hysteresis＜(%)	1	2.5
3	Dead Band＜(%)	0.4	1
4	Start &End Deviation＜(%)	±1	±2.5
5	Rated Travel Deviation＜(%)	+2.5	+2.5

Note: Performance index of this production is higher than GB/T4213-2008.

Flow Characteristic                                                                   Table 4