Control Valve

ZHM Type Sleeve Type Control Valve

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Category : Control Valve. Tags : control valve, Linear actuator control valve

ZHM single level sleeve type control valve with high stability, easy maintenance and wide application. It can be designed as balance type for eliminate static unbalance, with damping effect, reduce valve vibration, can be applied in occasion with large pressure difference, can apply with multi-spring pneumatic diaphragm actuator or electric actuator, etc.

sleeve type control valve Specification

Body type: straight through globe type
Spool type: non-balanced single seat plug type
Nominal size: DN25~300 NPS 1〞~ 12〞
Nominal pressure: PN16 ~ 100 CLASS 150LB ~ 600LB
Connection: flange: FF、RF、MF、RTJ
Welding: SW、BW
Flange dimension: acc. to IEC 60534
Bonnet type: Standard type(-5℃~230℃)
Radiator type: (-45℃~ higher than230℃ occasion )
Low temperature extended type(-196℃~ -45℃)
Bellow seal type
Packing: V type PFTE packing, flex. graphite packing, etc.
Gasket: Metal graphite packing
Actuator: pneumatic: multi-spring diaphragm actuator, piston type actuator.
electric: 3810L series smart actuator, PSL series actuator.
Surface painting: Green color, acrylic acid polyurthene ceramic paint.

Sleeve Type Control Valve Code

Z Actuator H Structure Nominal pressure Body material Nominal size
Z series control valve J:  pneumatic diaphragm actuator
H:  pneumatic piston actuator
R: electric 3810L actuator
D:  electric PSL actuator
H direct travel M:  standard sleeve type
MF:  soft sealing sleeve
ML:  Single level cage type
MT:  Two level cage type
MG:  sleeve type control valve with radiator
MV:  sleeve type with bellow seal
MD:  low temperature sleeve type
PN16=16
CL150LB=150 LB
JIS10K=10K
C=WCB
LC=LCB
P=CF8
PL=CF3
R=CF8M
RL=CF3M
D=special material
DN25= DN252
NPS1〞= NPS 1〞
Such as: Z type pneumatic diaphragm sleeve type control valve, pressurePN16,valve body WCB,nominal size DN50,type: ZJHM-16C DN50

Sleeve Type Control Valve Performance

Flow characteristic Linear, percentage, quick open
Allowable range 50: 1 
Rated Cv value Percentage CV10~1400 ,linear CV11~1500
Allowable leakage Metal seal: II grade(0.5% rated capacity)soft seal: V grade
Performance   Pneumatic Electric
Allowable tolerance, % ±1.5 ±1.0
Return difference, % ≤1.5 ≤1.0
Dead zone, % ≤0.6 ≤1.0
Difference from beginning to end point, % ±2.5 ±2.5
Rated travel difference, % ≤2.5 ≤2.5
Note: specification on the basis of control valve with positioned and PTFE packing.

Sleeve Type Control Valve Special specification

Special test Material penetration flaw detection (PT), radiator test (RT), flow characteristic test, low temperature test.
Special treatment Trim nitrogen treatment, seat hard alloy treatment.
Special rinse Degreasing and dehydration treatment
Special condition Special piping or connection, vacuum condition, S.S fastener, special coating.
Special dimension Customized face to face length or dimension
Test and inspection Third party test report

Sleeve Type Control Valve Actuator

Type\Method Pneumatic diaphragm actuator Electric actuator
ZH23~ZH56 3810L series
 Multi-spring type Intelligent integrated type
Usage Regulating type, ON-OFF type Regulating
Air supply pressure or Power supply voltage Air supply pressure (Spring range)
140(20~100)Kpa G
240 (40~200) Kpa G
280 (80~240) Kpa G
Power: AC 200V±10%  50Hz
Or Power:  AC 380V±10% 50Hz
Connector Air pipe connector: RC1/4 Nomal type:  cable inlet 2-PF(G1/2〞)
Explosive proof type:  can install protection jacket PF(G3/4〞)
Positive action Pressure increase, stem descend, valve close. Input signal increase, stem descend, valve close.
Negative action Pressure increase, stem ascend, valve open. Input signal increase, stem ascend, valve open.
Input signal 40~20mA.DC(with positioner) Input/output4~20mA.DC
Lag ≤1%FS(with positioner) ≤0.8%FS
Linear type 2%FS(with positioner) +1%FS
Environmental temperature -10℃~+70℃ Standard type: -10℃~+60℃
With space heater : -35℃~+60℃
Explosive proof: -10℃~+40℃
Surface coating Green, acrylic acid polyurethane coating Blue, acrylic acid polyurethane coating
Accessories E/P, P/P valve positioned, filter regulator, valve converter, solenoid valve, limited switch Space hearter (normal type)
Note : non-standard type should have special notice.

Sleeve Type Control Valve Parameter

Seat diameter(mm) 25 32 40 50 65 80 100 125 150 200 250 300
Rated Cv Percentage 10 16 25 40 63 100 160 250 400 630 1000 1400
Linear 11 17.6 27.5 44 69 110 176 275 440 690 1100 1500
Nominal size Travel Option flow coefficient, Cv(★standard ●recommended ○customized)
DN25 16 mm                      
DN32 25 mm                    
DN40                  
DN50                
DN65 40mm                
DN80              
DN100            
DN125 60mm                
DN150                
DN200              
DN250 100mm                
DN300                
Pneumatic ctuator,Diaphragm effective area, Ae (cm2) ZHA/B-23 ZHA/B-34 ZHA/B-45 ZHA/B-56
350 560 900 1600
Action Spring range Metal seal allowable pressure difference(MPa)
Air to open 20-100KPa 3 2.25 2.25 1.95 2.36 2.04 1.67 1.41 1.41 1.14 0.65 0.55
40-200 KPa 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 1.55 1.4
80-240 KPa 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 4.08 4.08
Air to close 20-100KPa 1.5 1.13 1.13 0.98 1.18 1.02 0.84 0.71 0.71 0.57 0.65 0.55
40-200 KPa 4.5 3.38 3.38 2.93 3.54 3.06 2.51 2.12 2.12 1.71 1.8 1.55
80-240 KPa 6.4 6.4 6.4 6.4 6.4 6.4 5.85 4.94 4.94 4 4.08 3.65
Electric actuator Metal seal allowable max. pressure difference(MPa)
Type Thrust(N)
3810L-08 800 6.4 6.4                    
3810L-20 2000 6.4 6.4 6.4 5.1                
3810L-30 3000 6.4 6.4 6.4 6.4 5.7 4.76            
3810L-50 5000     6.4 6.4 6.4 6.4 6.25          
3810L-65 6500             6.4 6.4 4.23 3.23    
3810L-99 10000                 6.4 6.1 3.31 2.07
3810L-160 16000                     6 4

Sleeve Type Control Valve Material and Internal structure

Table 1: Body WCB
Body WCB LCB WC9
Spool 304 304 304
Gasket 316+ graphite /PTFE
Bushing 304 304 304
Bonnet WCB LCB WC9
Packing PTFE/flex. graphite
Packing bushing 304 304 304
Gland WCB WCB WCB
Stem 304 304 304
Stud 45 40MnB 25Cr2Mo1VA
Nut 35 35 25Cr2Mo1VA
Sleeve Type Control Valve Internal structure Table 2: Body S.S
Body CF8 CF8M CF3M
Spool 304 316 316L
Gasket 316+ graphite /PTFE
Bushing 304 316 316L
Bonnet CF8 CF8M CF3M
Packing PTFE/ flex. graphite
Packing bushing 304 316 316L
Gland CF8 CF8M CF3M
Stem 304 316 316L
Stud 304 316 316L
Nut 304 316 316L
Note:
  • Above structure, seat is metal sealing, PTFE soft sealing is VI grade as option. Also can provide stillate hard sealing. As per actual working temperature, we may choose proper bolt & nut accordingly.
  • PTFE V type stem packing is with graphite, the working temperature can be higher than 232℃(450 F)
  • The common body material is WCB and S.S, can apply with other high corrosion resistance alloy material.

Sleeve Type Control Valve Valve structure in variety occasion

MG type radiator sleeve controlvalve MV type bellow sealed sleevecontrol valv MD type low temperature warm insulation sleeve control valve
MG type radiator sleeve controlvalve, applicable for temperature -45℃~higher than 230℃ occasion. MV type bellow sealed sleevecontrol valve. Applicable for multi-layer bellow seal, well protected medium against loss. MD type low temperature warm insulation sleeve control valve, spool integrated external suction structure, convenient and easy for maintenance.
MF soft sealing sleeve control valve ML type single sleeve control valve MT type two-layer sleeve control valve
MF soft sealing sleeve control valve, applicable for V grade sealing requirement. ML type single sleeve control valve, unique symmetrical multi-pore disc, more efficiently controlling noisy and cavitation. MT type two-layer sleeve control valve, symmetrical multi-pore disc reducing pressure gradually, applicable for high pressure difference noisy and cavitation.