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Self-pressure regulating valve
Model: ZZYP
Nominal diameter: DN20 ~ 200mm
Nominal pressure: PN1.6 ~ 6.4Mpa
Body material: steel, stainless steel, alloy steel
Working temperature: -46 ℃ -950 ℃
Connection: flange, welding
Design criteria: GB / T17213
Structure length: GB12221-89
Test standard: GB / T4213
Flange standard: JIS B220, JB / T79, ANSI B16.5-1981, GB / T9113, HG20594-97, HG20618-97, etc.
Product details

First, the self-pressure regulator valve Overview
 ZZYP-type self-pressure regulator valve is a need without additional energy, the use of the controlled media its own energy as a power source, the introduction of the executive chamber~produce thrust~control the throttle element movement~automatically adjust. 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.
 

Second, self-pressure regulator valve model

category model category model
Single-seat pressure-type ZZYP-16 ~ 64B Single-seat pressure-type ZZYP-16 ~ 64K
Double-seat pressure-type closure ZZYN-16 ~ 64B Double-seat pressure-type closure ZZYN-16 ~ 64K
Sleeve pressure closed type ZZYM-16 ~ 64B Sleeve pressure closed type ZZYM-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. 


 Third, self-pressure regulating valve main technical parameters

Nominal diameter DN (mm) 20 25 32 40 50 65 80 100 125 150 200
Seat diameter DN (mm) 10 12 15 20
Rated flow coefficient Kv 1.8 2.4 4.4 4 11 20 30 48 75 120 190 300 480 760
Allowable pressure difference (MPa) 2.5 2.0 1.6 1.0
Nominal pressure (MPa) 1.6 4.0 6.4
Inherent flow characteristics Go 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 medium Gas, steam, low viscosity liquid
Flange size, type PN10,16, 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 length Press GB12221-89 standard
Actuator signal interface Female thread M16 × 1.5

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

control precision% ± 8
Allowing the vent 
leak amount
Hard 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)
20 25 32 40 50 65 80 100 125 150 200
0.15 0.3 0.45 0.6 0.9 1.7 4.0 6.75


 Fifth, self-pressure regulating valve can be equipped with an adapter

 condenser (for media for steam occasions), heat sink, etc. 
 
   Six, self-pressure regulating valve dimensions and weight
 

Nominal diameter (DN) 20 25 32 40 50 65 80 100 125 150 200
L PN16,40 150 160 180 200 230 290 310 350 400 480 600
PN64 230 230 260 260 300 340 380 430 500 550 650
B 233 332 373 522 673 980 1200
H Pressure adjustment
range (MPa)
15 ~ 140 475 520 540 710 780 840 880 915
120 ~ 300 455 500 520 690 760 800 870 880
280 ~ 500 450 490 510 680 750 790 860 870
480 ~ 1000 445 480 670 740 780 850 860
600 ~ 1500 445 570 600 820 890 950 950 1000
1000 ~ 2500 445 570 600 820 890 950 950 1000
A Pressure adjustment
range (MPa)
15 ~ 140 φ282 φ308
120 ~ 300 φ232
280 ~ 1000 φ196 φ196 φ282
600 ~ 2500 φ85 φ96
About weight (Kg) 26 37 42 72 90 114 130 144 180