WHY CHOOSE CNZPV®
November 4, 2024
- Konggang New Area,Longwan District,Wenzhou,Zhejiang
- zp3@cnzpv.com
- +86-577-86907996
Nominal Diameter: DN15-350,NPS 1/2″-14″
Nominal Pressure: PN10,PN16,PN25
Connection Standard: HG20592-2009,ANSI B16.5,JIS B2220
Body Material: WCB,CF8,CF8M,CF3M
Spool&Seat Type: Single-Seat, Sleeve-Guided
Packing Type: Soft-Sealing,Metal-Sealing
Temp. Range: ≤350℃(≤662°F)
Flow Characteristic: ON-OFF(Quick-Open)
Actuator Type: Pneumatic Diaphragm/Piston
Acting Form:
Pressure release @ Inlet Side: (K-Modle)
Pressure reduce @ Outlet Side: (B-Modle)
The ZZYVP Self-Operated Micro-Pressure Regulator (Actuator Controlled), it does not require external energy (power supply, air source) and directly uses the energy of the controlled medium for automatic control and operation. The pressure is set on the controller by adjusting the spring and can be set continuously while the valve is in operation. Pressure reduction ratio ≤4000:1, high control accuracy, rapid response, good sealing performance.
There are the most types of self-operated pressure regulating valves, including the following types:
●ZPL610 (ZZYP, ZZYM) self-operated pressure regulating valve
●ZPL620 (ZZVP, ZZVM) self-operated micro-pressure regulating valve
●ZPL630 (ZZYVP-BII) pilot pressure regulating valve (nitrogen sealing device)
●ZFQ explosion-proof fire-blocking breathing valve
The ZPL630 self-operated pressure regulating valve with pilot operation (referred to as pressure valve) does not require external energy and uses the energy of the medium to be regulated as the power source to achieve automatic regulation. This product adopts a single-seat valve fast-opening flow characteristic regulation mechanism, with stable medium pressure, high regulation accuracy, safe and reliable sealing performance, and the set value can be adjusted arbitrarily during operation. Therefore, it is suitable for various industrial furnace combustion system fuel gas, petroleum products or oil tank protection gas (nitrogen sealing) and heat treatment protection gas micro-pressure automatic regulation occasions.
1. No external driving energy is required, and the equipment cost is low.
2. No filler, no friction active components, sensitive adjustment, high control accuracy.
3. The set point is adjustable and has a wide range, which is convenient for users to adjust continuously.
4. The pressure reduction ratio is particularly large, for example, 0.8MPa before the valve, 50Pa after the valve, and the pressure difference ratio reaches 1600.
Main parts materials
| Name of parts | Materials |
| Body | ZG230-450、ZG0Cr18Ni9、ZG0Cr18Ni12Mo2 |
| Core | 1Cr18Ni9、0Cr18Ni12Mo2(bead welding)、PTFE |
| Seat | 1Cr18Ni9、0Cr18Ni12Mo2(bead welding) |
| Valve Stem | 1Cr18Ni9、0Cr18Ni12Mo2 |
| Membrane cover | Q235、Q235 PTFE(Coating) |
| Spring | 60Si2Mn |
| Seal ring/gasket | Stainless Steel+Flexible Graphite |
| Packing | PTFE+Flexible Graphite |
| Bellows Pipe | Stainless Steel |
| Diaphragm | Nitrile, Ethylene propylene, Fluorine, Oil-resistant rubber |
| 0-Ring | PTFE、Oil-resistance Rubber |
Main technical parameters and performance indicators
| Nominal diameter DN(mm) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | ||
| Seat diameter D(mm) | 6 | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 |
| Rated flow coefficient (Kv) | 0.32 | 4 | 5 | 8 | 12.5 | 20 | 32 | 50 | 80 | 125 | 160 | 320 |
| Pressure adjustment range (KPa) | Select from 0.5-100 | |||||||||||
| Nominal pressure PN(MPa) | 1.0 1.6 | |||||||||||
| Temperature of the medium being regulated (℃) | -40~80 | |||||||||||
| Flow characteristics | Open quickly | |||||||||||
| Adjustment error (%) | ±5 | |||||||||||
| Allowable pressure drop (MPa) | 1.6 | 1.6 | 1.1 | 0.4 | 0.6 | |||||||
| Actuator membrane effective area (cm²) | 200 | 280 | 400 | |||||||||
| Allowable leakage | Hard valve core: Class IV (10 – 4 × Kv) Soft valve core: Zero leakage | |||||||||||
Feel free to drop us a message if you have any open questions and would like to work with us.
