Self-pressure regulating valve
Self-pressure regulating valve
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.
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 | ||||
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