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
| 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.
Self-pressure regulator valve actuator type
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 |
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| 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) |
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| 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.
Self-pressure regulator valve main performance indicators
| control precision% | ± 8 | |||||||||||
| Allow leakage | 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 | |||||
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) | 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 | ||||
