2WH Series High Pressure Direct Acting Solenoid Valves

The 2WH Series is a unique problem-solver, combining high pressure capability with a direct acting design. Engineered to operate at pressures up to 20 bar (290 psi), this valve also requires zero pressure differential to open, making it exceptionally versatile. It is the ideal choice for demanding applications that start from zero pressure but must also withstand high system pressures, such as pressure testing equipment, high-pressure cleaning systems, and industrial gas control.
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Product Introducing:


Features & Key Specifications

Features & Key Specifications of Our 2WH Series:

High Pressure Capability (up to 20 Bar):

Specifically designed for systems that operate above standard industrial pressures, providing reliable on-off control up to 20 bar.

Zero Pressure Differential Operation:

The direct acting design ensures the valve opens reliably every time, even with 0 bar in the line. This unique combination of high pressure and zero start is its key advantage.

Fast and Reliable Response:

With its direct lift mechanism, the 2WH series offers a fast and positive response for critical on-off applications.

Robust Forged Brass Body:

The heavy-duty forged brass body is engineered to safely withstand the continuous stress of high-pressure operation, ensuring a long service life.

Normally Closed (NC) and Normally Open (NO) Options:

This series is available in both Normally Closed (fail-safe closed) and Normally Open (fail-safe open) configurations to meet diverse system requirements.


Application Fields

The Solution for Demanding High Pressure Control:

Pressure Testing Equipment: Perfect for controlling the pressurization and venting of test circuits for vessels and components.

High-Pressure Cleaning Systems: A robust valve for controlling the flow of high-pressure water or air for industrial cleaning.

Gas Bottling & Control: Suitable for controlling the flow of non-corrosive gases in high-pressure filling or distribution systems.

Hydraulic Power Packs: Can be used on the pilot or drain lines of certain low-viscosity hydraulic systems.

Air Cannons & Dust Removal: Providing the fast, high-pressure release of air needed for industrial air cannon systems.


Technical & Selection Guide

When to Choose the 2WH High Pressure Direct Acting Valve

The 2WH series is a specialized valve. Choose it when:

Your maximum operating pressure is between 10 bar and 20 bar.

Your system pressure might drop to 0 bar during a cycle.

You need the reliability of a direct acting design in a high-pressure environment.

For standard pressures (below 10 bar), our 2W series is the more economical choice. For high pressures that are always above 1 bar, a pilot-operated valve (like our SLG series) may offer higher flow rates.


FAQ

Frequently Asked questions

Q: What is the main difference between the 2WH and the 2W series?

A: Pressure rating. The 2WH series is designed for high pressures up to 20 bar (290 psi), while the standard 2W series is intended for lower, general-purpose pressures (typically up to 10 bar).

Q: Why is a "high pressure direct acting" valve special?

A: It's a difficult engineering challenge. Most high-pressure valves are pilot-operated, meaning they need line pressure to help them open. A high pressure direct acting valve uses a very powerful solenoid to open against high pressure on its own, which allows it to also work at 0 pressure. This makes it extremely versatile.

Q: Can this valve be used for steam?

A: No. The standard seals in the 2WH series are rated for a maximum of 80°C, which is below the temperature of steam. For steam, you must use a dedicated high-temperature valve with PTFE seals.

Specifications

Part No.2WH012-062WH012-082WH020-10
Port Size1/8"1/4"3/8"
Working Medium
Acting Type
Orifice(mm)1.22
CV 0.050.15
Working medium fluid Viscosity
Working Pressure(Bar)0~20 
Max. Pressure Resistance(Bar)35
Working Temperature
Voltage Range
Sealing
Body Material 


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About Us
Ningbo Pneutech Automation Co., Ltd.
Ningbo Pneutech Automation Co., Ltd.
Specializes in pneumatic components and automation solutions.Head quartered in Ningbo, China, We lever age 10 years of industry experience to provide high-quality cost-effective products and technical support to global clients. We offer a wide range of products including solenoid valves, air treatment units, fittings & tubing andautomation accessories-Serving industries like packaging, textile food,pharmaceuticals,environment al protection, water treating.etc
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