


ZZYP series self operated (micro) differential pressure regulating valve
ZZYP type self operated pressure regulating valveWithout the need for external energy, using the energy of the regulated medium itself as a power source, introducing an actuator to control the position of the valve core, changing the pressure difference and flow rate at both ends, and stabilizing the pressure before (or after) the valve. It has the advantages of sensitive action, good sealing, and small pressure set point fluctuations, and is widely used inGas, liquid, and vapor mediaAutomatic control of pressure reduction and stabilization or pressure relief and stabilization.
This series of products has three types of structures: single seat (ZZYP), sleeve (ZZYM), and double seat (ZZYN). The actuator has two types: diaphragm type and piston type. The action types include pressure relief valve rear pressure regulation (B type) and pressure relief valve front pressure regulation (K type). The nominal pressure rating of the product includes PN16, 40, and 64; Valve body diameter range DN20~300; There are three levels of leakage levels: Level II, Level IV, and Level VI; The traffic characteristic is fast opening; The pressure is adjusted in stages from 15 to 250MPa. Can be combined as needed to meet user operating requirements.
1ZZYP type self operated pressure regulating valveMain technical parameters and performance indicators
Nominal diameter (DN) |
20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | ||||||||||||
Rated flow coefficient (KV) | 7 | 11 | 20 | 30 | 48 | 75 | 120 | 190 | 300 | 480 | 760 | 1100 | 1750 | ||||||||||||
Rated stroke (mm) | 8 | 10 | 14 | 20 | 25 | 40 | 50 | 60 | 70 | ||||||||||||||||
Nominal pressure (MPa) | 1.6 4.0 6.4 | ||||||||||||||||||||||||
Pressure regulation range (Kpa) | 15~50 40~80 60~140 120~220 160~220 200~260 240~300 280~350 330~400 380~450 480~560 540~620 600~700 680~800 780~900 880~1000 950~1500 1000~2500 |
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Traffic characteristics | Quick open | ||||||||||||||||||||||||
Adjustment accuracy% | ±5 | ||||||||||||||||||||||||
Operating temperature (℃) | ≤350 | ||||||||||||||||||||||||
1. Allowable leakage amount | Hard seal (1/h) | Single seat: ≤ 10-4 valve rated capacity (IV) level; Double seat, sleeve: ≤ 5 × 10-4 valve rated capacity (Class II) | |||||||||||||||||||||||
Soft seal (1/h) | 0.15 | 0.30 | 0.45 | 0.60 | 0.90 | 1.7 | 4.0 | 6.75 | 11.10 | 16.0 | |||||||||||||||
2. Pressure reduction ratio | maximum | 10 | |||||||||||||||||||||||
minimum | 1.25 |
IIZZYP automatic pressure regulating valveModel ZZY
Nominal diameter (DN) |
20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | ||
Flange connection size (B) | 383 | 512 | 603 | 862 | 1023 | 1380 | 1800 | 2000 | 2200 | ||||||
Distance between flange end faces (L) | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 | 730 | 850 | ||
Pressure power transfer joint Fan enclose (Kpa) |
15-140 | H | 475 | 520 | 540 | 710 | 780 | 840 | 880 | 915 | 940 | 1000 | |||
A | 280 | 308 | |||||||||||||
200-500 | H | 455 | 500 | 520 | 690 | 760 | 800 | 870 | 880 | 900 | 950 | ||||
A | 230 | ||||||||||||||
120-300 | H | 450 | 490 | 510 | 680 | 750 | 790 | 860 | 870 | 890 | 940 | ||||
A | 176 | 194 | 280 | ||||||||||||
480-1000 | H | 445 | 480 | 670 | 740 | 780 | 850 | 860 | 880 | 930 | |||||
A | 176 | 194 | 280 | ||||||||||||
600-1500 | H | 445 | 570 | 600 | 820 | 890 | 950 | 1000 | 1100 | 1200 | |||||
A | 85 | 96 | |||||||||||||
1000-2500 | H | 445 | 570 | 600 | 820 | 980 | 950 | 1000 | 1100 | 1200 | |||||
A | 85 | 96 | |||||||||||||
Weight (Kg) | 26 | 37 | 42 | 72 | 90 | 114 | 130 | 144 | 180 | 200 | 250 | ||||
Thread of pressure pipe joint | M1.6×1.5 |
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V230Y Self operated (Micro) Differential Pressure Regulating Valve