ZZVP Self-Operated Micro-Pressure Regulating Valve
manufacturer: Kaiweixi Valve Group Co., Ltd.
Eml: Yannie@kaiweixi.com
Tel: +86（577）67038872
Mob: +86 189 6779 6135（WeChat Same Account）
product drawing
ZZVP Self-Operated Micro-Pressure Regulating Valve
Overview
The ZZVP self-operated micro-pressure regulating valve is a precision micro-pressure control device driven by the medium's own energy. Adopting the direct-acting pressure sensing principle, it can automatically regulate and stably control the micro-pressure of the pipeline system (usually in the range of 0.5kPa to 50kPa) without external power supply or air source. The valve senses pressure changes through a sensitive diaphragm or bellows and directly drives the valve core to change the opening degree, which can accurately maintain the set pressure value. It is especially suitable for occasions with strict requirements for low-pressure or micro-pressure stability, such as ventilation systems, gas piping, biological fermentation tanks, and laboratory negative pressure control. The valve features a cast steel, stainless steel or copper alloy valve body with a compact structure, supporting flange or thread connections. It is an ideal solution for the micro-pressure control field that pursues energy saving and reliability without additional power.
Features
1. Self-operated Micro Pressure Precision Control
No external power supply, air source, or hydraulic assistance is needed. The control mechanism is driven solely by the pressure of the medium itself, enabling precise automatic adjustment within a micro pressure range. Using high-sensitivity diaphragms or bellows as sensing elements, it can respond to tiny pressure changes of ≤100 Pa, with high control accuracy.
2. Low Pressure Drop Adaptability and Fast Response
Optimized for low-pressure conditions, the valve core features a lightweight structure combined with low-stiffness springs, ensuring sensitive operation even under minimal pressure differences. The dynamic response time is short, effectively suppressing pressure fluctuations and maintaining system pressure stability.
3. Compact Structure and Flexible Installation
The overall design is small and lightweight, supporting multiple installation orientations such as horizontal and vertical. It offers various connection interfaces like flanges and threads, allowing quick adaptation to pipelines and equipment, making it especially suitable for space-constrained or distributed micro-pressure control points.
4. Multiple Optional Control Modes
By replacing the actuator type or adjusting the configuration, it can support various modes such as downstream pressure regulation (pressure reduction and stabilization), upstream pressure regulation (pressure relief and holding), and differential pressure control. This meets diverse needs like ventilation pressure balancing, gas pressure stabilization, and tank micro positive/negative pressure control.
5. Easy Maintenance and High Reliability
The control mechanism features a modular design, with diaphragms/bellows and other wear parts supporting quick replacement. No external power source is required, reducing system complexity and potential failure points. The valve body and internal components are made of corrosion-resistant materials, suitable for air, inert gases, clean gas, and other media, ensuring long-term stable and reliable operation.
Dimensions & constructral diagram
ZZVP Self-Operated Micro-Pressure Regulating Valve constructral diagram
Material of main parts
| NO. | Name | Material |
|---|---|---|
| 1 | Valve body | WCB/304/316 |
| 2 | Gasket | Reinforced PTFE, Stainless Steel Gasket, Spiral Wound Gasket |
| 3 | Diaphragm Cover | A3 Steel Plate Stamping |
| 4 | Spring | 60Si2Mn |
| 5 | Balanced Diaphragm | NBR, Oil-Resistant Rubber, Fluoro Rubber |
| 6 | Valve Core | WCB/304/316 |
| 7 | Seat | WCB/304/316 |
Performance Specification
| Performance Specification | ||
|---|---|---|
| Nominal Pressure | 1.0/1.6 | MPa |
| Shell Test | 1.5/2.4 | |
| Seal Test | 1.1/1.76 | |
| Suitable Temp. | ≤80 | ℃ |
Specification and dimensions
| DN | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 150 |
|---|---|---|---|---|---|---|---|---|---|
| A | 308 | 394 | 308 | 394 | 308 | 394 | 394 | 394 | 394 |
| H | 378 | 370 | 445 | 460 | 490 | 490 | 510 | 720 | 460 |
| L | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 480 |
