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Self-operated control valve

Products > Control valve > Self-operated control valve

Self-operated control valve

Model: ZZYP
Nominal diameter: DN20 ~ 200mm
Nominal: PN1.6 ~ 6.4MPa
Operating temperature: ≤140 fluid; a gas ≦ 80; and a condenser with fins ≤350
Medium: gases, vapors, liquids of low viscosity
Design Standard: GB / T17213
Test standards: GB / T4213
Flange standards: JIS B220, JB / T79, ANSI B16.5-1981, GB / T9113, HG20594-97, HG20618-97, etc.
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Self-operated pressure regulating valve Overview
 ZZYP self-acting pressure regulating valve is a need without external energy, the use of the controlled medium itself as a power source, the introduction of the executive chamber~produce thrust~control the movement of throttling components~achieve automatic adjustment. With measurement, implementation, control of the integrated features. Available in no gas, no electricity place. Widely used in petroleum, chemical, power plants, light industry, printing and dyeing industry, automatic control system for a variety of equipment, gas, liquid and steam media deceleration pressure, regulator (for the valve pressure regulator) relief pressure, Pressure control) automatic control. According~the user's different conditions can choose different spool structure and different implementing agencies, in order~achieve the best control effect.
 

Self-operated pressure regulating valve model

categorymodelcategorymodel
Single-seat pressure-typeZZYP-16 ~ 64BSingle-seat pressure-typeZZYP-16 ~ 64K
Double-seat pressure-type closureZZYN-16 ~ 64BDouble-seat pressure-type closureZZYN-16 ~ 64K
Sleeve pressure closed typeZZYM-16 ~ 64BSleeve pressure closed typeZZYM-16 ~ 64K

Pressure closed type: for the valve pressure regulator, when the valve pressure increases, the valve closed, in order~achieve decompression, the purpose of regulating. 
 Pressure type: for the valve pressure regulator, when the valve pressure increases, the valve opens, in order~achieve pressure relief, the purpose of regulating. 
 Self-pressure regulator valve actuator type 
 
 Main technical parameters

Nominal diameter DN (mm)20253240506580100125150200
Seat diameter DN (mm)10121520
Rated flow coefficient Kv1.82.44.441120304875120190300480760
Allowable pressure difference (MPa)2.52.01.61.0
Nominal pressure (MPa)1.6 4.0 6.4
Inherent flow characteristicsGo ahead
Regulators~ensure the normal work of the smallest pressure difference P (MPa)0.05
Pressure Segment Range (KPa)15~50 40~80 60~100 80~140 120~80 
160~220 200~260 240~300 280~350 330~400 
380~450 430~500 480~560 540~620 600~700 
680~800~780 900 800 ~ 1000 900 ~ 2000     
Operating temperature ℃Liquid ≤ 140; gas ≤ 80; with the condenser and heat sink ≤ 350
Suitable mediumGas, steam, low viscosity liquid
Flange size, typePN10,16, 40GB9113-88, PN64JB / T7-94; PN10,16 convex, PN40,64 convex 
or according~user requirements matching other standard types of flange (such as: ANSI, JIS, DIN and other standards)
Structure lengthPress GB12221-89 standard
Actuator signal interfaceFemale thread M16 × 1.5

Note: The pressure of the sub-range can be designed according~user requirements. 
 
 Self-pressure regulator valve main performance indicators

control precision%± 8
Allow leakageHard Seal (L / H)Single-seat (Ⅳ grade): ≤10-4 Valve rated capacity: two-seater, sleeve (Ⅱ level), ≤5 × 10-3 × valve rated capacity
Soft seal (ml / min)DN (mm)
20253240506580100125150200
0.150.30.450.60.91.74.06.75

Self-pressure regulator can be equipped with accessories 
 condenser (for the media for steam occasions), heat sink and other 
 
 Self-pressure regulating valve Dimensions and weight

Nominal diameter (DN)20253240506580100125150200
LPN16,40150160180200230290310350400480600
PN64230230260260300340380430500550650
B2333323735226739801200
HPressure adjustment range 
(MPa)
15 ~ 140475520540710780840880915
120 ~ 300455500520690760800870880
280 ~ 500450490510680750790860870
480 ~ 1000445480670740780850860
600 ~ 15004455706008208909509501000
1000 ~ 25004455706008208909509501000
APressure adjustment range 
(MPa)
15 ~ 140φ282φ308
120 ~ 300φ232
280 ~ 1000φ196φ196φ282
600 ~ 2500φ85φ96
About weight (Kg)2637427290114130144180


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