2W Series Direct Acting Solenoid Valves

The 2W Series of direct acting solenoid valves is our most versatile solution for general-purpose on-off control. Engineered to operate with zero pressure differential, this valve is the perfect choice for gravity-fed systems, vacuum applications, and any fluid line where pressure may be low or inconsistent. With its reliable performance and a wide range of sizes, the 2W series provides a fast-acting and cost-effective solution for controlling air, water, oil, and other neutral gases.
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Product Introducing:


Features & Key Specifications

Features & Key Specifications of Our 2W Series:

Zero Pressure Differential Operation:

The core feature of the direct acting design. The valve opens reliably every time, even with 0 bar in the line, making it a true zero pressure solenoid valve.

General Purpose Fluid Control:

Designed for maximum versatility, the 2W series is suitable for a variety of media, including water, air, light oils, and inert gases.

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

This series is available in both Normally Closed (opens when powered) and Normally Open (closes when powered) configurations to suit any system logic or safety requirement.

Wide Range of Orifice & Port Sizes:

From small 1/8" ports for precise control up to large 2" ports for high-flow applications, this series covers an extensive range of requirements.

Durable Brass Body & Multiple Seal Options:

The solid forged brass body provides excellent durability for most industrial environments. Choose from NBR, EPDM, or Viton seals to ensure compatibility with your specific media.


Application Fields

The Ideal Valve for Low Pressure and General Duty:

Gravity-Fed Systems: Perfect for controlling flow from tanks or hoppers where there is little to no line pressure.

Vacuum Service: Reliable for opening and closing vacuum lines in packaging, lifting, and degassing applications.

Low-Pressure Gas & Air: Ideal for controlling the flow of low-pressure air or gases.

Drain Valves: Can be used as an automatic drain valve for tanks and vessels.

General Purpose Fluid Control: A versatile and reliable choice for thousands of on-off applications that may experience pressure drops.


Technical & Selection Guide

When to Choose a 2W Direct Acting Valve

Choose the 2W series direct acting valve over a pilot-operated valve when:

Your system pressure can drop to 0 bar.

You need to control a vacuum line.

You require very fast response times, as direct acting is typically faster for a given orifice size.


FAQ

Frequently Asked questions

Q: What does "direct acting" mean for me?

A: It means the valve will open reliably every time, regardless of how low the line pressure is. Unlike pilot-operated valves that need a minimum pressure to shift, a direct-acting valve works from 0 bar up to its maximum rated pressure.

Q: What is the maximum pressure for this series?

A: The maximum working pressure for the standard 2W series varies by orifice size, but typically ranges up to 10 bar (145 psi). For higher pressures, please see our 2WH series.

Q: Can I use this valve for hot water?

A: With the optional EPDM or Viton seals, this valve can handle hot water. Please check the specific temperature rating for the seal material you choose. Standard NBR seals are typically rated to 80°C.

Specifications

Part No.2W025-062W025-082W030-082W030-102W040-10
Port Size1/8"1/4"1/4"3/8"3/8"
Working MediumAir, water, oil, gas
Acting TypeDirect Acting
Orifice(mm)2.54
CV 0.230.6
Working medium fluid Viscosity<20CST
Working Pressure(Bar)0~7 0~10
Max. Pressure Resistance(Bar)1015
Working Temperature-5~80℃
Voltage Range±10%
SealingNBR,EPDM, VITON
Body Material Brass


KEEP IN TOUCH

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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