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Single Seat Cryogenic Control Valve High Pressure Difference Low Noise Anti Seismic

Pneumatic diaphragm intelligent cryogenic single-seat control valve

YSIQ Series Cryogenic Control Valve, use modular design, with advantages of impact structure and wide varieties. The varieties combination of the trim components, make it applicable for high pressure difference, high precision and low noise conditions to meet the different usage for customers’ requirements. The modular design, double-sides valve seat and compressing tightly connection, all greatly enhance valve sealing grade and its service life, which make it easy to repair and greatly increase its general performance.

ZM10 series multi-springs pneumatic reinforce actuator, makes the valve realize the conversion of normal close and normal open on site easily, the spring can be effectively protected from the corrosion to prolong the service life of actuator and convenient for customers operation. The actuator and the intelligent valve positioner are non-pipe connected to strengthen the anti-seismic performance, stability and precision adjustment, to meet to exactly control of the working conditions.

This series valve trims have single seat type, cage type, pressure balance type, etc. The pressure is PN1.6~16.0MPa(Class150~900)；The size is DN(mm)15～400(NPS1/2～16)；Temperature is -196～+230℃；The leakage is Ⅳ,Ⅴ,Ⅵ；Flow characteristic is linear and EQ%. 

Material                                                          Table 1

Item	Part	Material
1	Body	LF4	CF8	CF8M	CF3,CF3M
2	Seat	304,316+STL	316L+STL
3	Disc	Metal Seated	304,316+STL	316L+STL
Soft Seated	304,316+PTFCE	316L+PTFCE
4	Cage	304,316	316L
5	Guide Sleeve	304,316	316L
6	Stem	304,316	316L
7	Bonnet	304	CF8	CF8M	CF3,CF3M

Specification                                                           Table 2

Type	Top Guide (Double Guide)Single Seat
Nominal Diameter	DN15～DN400(NPS1/2～16)
Nominal Pressure	PN16~160(Calss150~900)
Body Type	Straight Through Type, Angle Type
Flow characteristic	EQ%, Linear, Quick Open(for SHUT-OFF Valve)
Rangeability	50﹕1
Connection	Connection Plate Install(See Fig.5)
Jacket Install(See Fig.6)
Pipeline Install(See Fig.1)
Leakage Rate	Ⅳ,V,Ⅵ(Soft Seated)
Operation	Pneumatic, Manual

Performance                                                              Table 3

No.	Item	Pneumatic Cryogenic Control Valve
1	Basic Error＜(%)	±2.5
2	Hysteresis＜(%)	2.5
3	Dead Zone＜(%)	1