Self-Regulating Pressure Valve - Product Overview
Our ZZYP self-powered pressure regulating valve requires no external energy. It utilizes the energy of the medium being adjusted as the power source to drive the actuator and control the position of the valve core, altering the pressure difference and flow at both ends to stabilize the pressure before (or after) the valve. The self-powered pressure regulating valve boasts advantages such as sensitive operation, good sealing, and minimal fluctuation in the set pressure point. It is widely used in automatic control for stabilizing pressure or pressure relief in gases, liquids, and other media.
Self-contained pressure regulating valve series include single seat (ZZYP), sleeve (ZZYM), and double (ZZYN) structures; actuating mechanisms are薄膜式 (diaphragm type) and piston type; operational types are pressure reduction after valve (B type) and pressure relief before valve (K type). Nominal pressure classes are PN16, 40, and 64; valve body bore sizes range from DN20 to 300; leakage classes include II, IV, and VI levels; flow characteristics are quick opening; pressure step adjustment ranges from 15 to 2500 Kpa. Can be customized to meet user's operational requirements.
Self-Regulating Pressure Valve Product Features
(1) The self-contained pressure regulating valve requires no external power source and can operate in places without electricity or gas, offering convenience and energy savings.
(2) The pressure range is finely segmented and overlaps, with high adjustment accuracy.
(3) The pressure setpoint can be continuously adjusted during operation.
(4) The pressure ratio between the pressure before and after the valve can be 10:1 to 10:8 for post-valve pressure regulation.
(5) Rubber diaphragm detection with high actuator accuracy and sensitive operation.
(6) Equipped with a pressure balancing mechanism, the regulating valve responds sensitively and controls accurately.
Self-Regulating Pressure Valve Technical Parameters
| 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 | |
| Noise Measurement Coefficient Z Value | 0.6 | 0.6 | 0.6 | 0.55 | 0.55 | 0.5 | 0.5 | 0.45 | 0.4 | 0.35 | 0.3 | 0.2 | 0.2 | |
| Permitted Pressure Difference (Mpa) | PN16 | 1.6 | 1.5 | 1.2 | 1,0 | |||||||||
| PN40 | 2.0 | |||||||||||||
| Valve cover style | Standard Type -17～+300℃; High Temperature Type +300℃～+450℃ | |||||||||||||
| Type of Cover | Bolt-tensioned | |||||||||||||
| Sealed Packing Material | V-shaped PTFE filler, impregnated PTFE asbestos filler, asbestos textile filler, graphite filler | |||||||||||||
| Valve core style | Single seat, sleeve type valve core | |||||||||||||
| Flow characteristics | Linear | |||||||||||||
Self-contained Pressure Regulating Valve Actuator Parameters
| Effective Area (cm²) | 32※ | 80 | 250 | 630 |
|---|---|---|---|---|
| Pressure Setting Range (MPa) | 0.8～1.6 | 0.1～0.6 | 0.015～0.15 | 0.005～0.035 |
| 0.3～1.2 | 0.05～0.3 | 0.01～0.07 | ||
| Guarantee the normal operation of the pressure valve Smaller Pressure Difference △Pmin (MPa) | ≥0.05 | ≥0.04 | ≥0.01 | ≥0.005 |
| Permits a greater pressure difference (MPa) between the upper and lower film chambers | 2.0 | 1.25 | 0.4 | 0.15 |
| Materials | Cover: Galvanized steel; Membrane: Filled with EPDM or FKM fibers | |||
| Control piping, fittings | Copper or steel pipe, 10×1; Compression fittings: R1/4" | |||
Note: The pressure setting range corresponding to this effective area does not apply to DN150-250.
Self-contained Pressure Regulating Valve - Performance Specifications
| Setpoint Deviation | ±8% | |||
|---|---|---|---|---|
| Permitted leakage amount Under specified experimental conditions | Hard-sealed | 4 x 0.01% rated capacity | ||
| Soft-sealed | DN15～50 | DN65～125 | DN150～250 | |
| 10 bubbles/min | 20 bubbles/min | 40 bubbles/min | ||
Self-contained pressure regulating valve, operating temperature
| Nominal Bore | 15～125mm | 150～250mm | |
|---|---|---|---|
| Sealed Type | Rigid sealing | ≤150℃ | ≤140℃ |
| Cooling tank ≤ 200℃ | Cooling tank and extended parts ≤200℃ | ||
| Cooling tanks and radiators ≤350℃ ※ | Cooling tank and extended parts ≤ 300℃ ※ | ||
| Soft-sealed | ≤150℃ | ||
Note: ※ indicates the working temperature of the valve, valid only when the medium is steam, and a PN40 valve body must be selected for temperatures up to 350℃.
Self-contained Pressure Regulating Valve Parts Material
| Material Code | C（WCB） | P（304） | R（316） | |
|---|---|---|---|---|
Primary Parts | Valve body | WCB（ZG230-450） | ZG1Cr18Ni9Ti（304） | ZG1Cr18Ni12Mo2Ti（316） |
| Valve core, valve seat | 1Cr18Ni9Ti（304） | 1Cr18Ni9Ti（304） | 1Cr18Ni12Mo2Ti（316） | |
| Valve stem | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | |
| Diaphragm | Nitrile rubber, EPDM rubber, Chloroprene rubber, Oil-resistant rubber | |||
| Film Cap | A3, A4 steel coated with polytetrafluoroethylene | |||
| Filling Material | PTFE, flexible graphite | |||
| Spring | 60Si2Mn | |||
| Guiding sleeve | HPb59-1 | |||
Self-contained Pressure Regulating Valve - Connection Size Diagram
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| ZZYP/M Self-Operated Pressure Regulating Valve (Connection Size Diagram) |
Self-contained Pressure Regulating Valve - Connection Size
| 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 | ||||||
| Flange Spacing (L) | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 | 730 | 850 | ||
Pressure Regulation Range (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 | |||||||||||||
| Approximate Weight (Kg) | 26 | 37 | 42 | 72 | 90 | 114 | 130 | 144 | 180 | 200 | 250 | ||||
| Guide Pressure Tube Thread | M16X1.5 | ||||||||||||||
Self-contained Pressure Regulating Valve Product Selection
Body Parameters: Nominal Bore Size, Working Pressure, Process Medium, Application, Material of the Body, etc.
Please provide as detailed technical specifications as possible for our production and technical team to accurately select the right product for you. Should you have any questions, feel free to call us, and we will do our best to provide you with excellent service!
