WENK Pneumatic KA Series Non-Return Valve

The KA Series Check Valve by WENK Pneumatic is a high-performance non-return valve designed for pneumatic systems. This precision-engineered valve allows airflow in one direction while preventing backflow, ensuring system stability and component protection.

Featuring an aluminum alloy body, the KA Series offers exceptional durability with a service life exceeding 1.5 million cycles. It operates efficiently within a pressure range of 0.05~0.8MPa and temperature range of -10~+55℃, making it suitable for various industrial applications.

With quick response time (0.03 seconds) and low opening pressure (≤0.03MPa), the KA Series provides reliable performance in automation, manufacturing, and process control systems. Available in multiple sizes from 1/8" to 2", it offers versatile integration options for different pipeline requirements.

product Details

product description

Product Detail

Model	KA-06	KA-08	KA-10	KA-15	KA-20
Working Media	Air (40µm filtered)
Working Pressure	0.15-0.8 MPa (21-114 psi)
Proof Pressure	1.2 MPa (175 psi)
Working Temperature Range	-20~70℃
Material	Aluminum Alloy

KA Series Check Valve User Guide

1. Product Overview

The WENK Pneumatic KA Series Check Valve is a high-performance pneumatic control component specifically designed to control the one-way flow of compressed air in pneumatic systems. This valve allows air to flow freely from port P to port A while reliably preventing reverse flow, thus protecting system components from damage and ensuring safe and efficient system operation.

The KA Series Check Valve features a compact design, simple structure, and easy installation, making it suitable for various industrial pneumatic systems. Its main characteristics include:

High-quality aluminum alloy construction, lightweight yet strong
Precisely machined valve seat and spring mechanism ensuring excellent sealing performance
Low pressure loss with high flow characteristics
Wide temperature and pressure range
Multiple specifications available to meet different system requirements

2. Technical Specifications

Model Specifications

KA-06 (G1/8)

KA-08 (G1/4)

KA-10 (G3/8)

KA-15 (G1/2)

KA-20 (G3/4)

KA-25 (G1)

KA-40 (G1 1/2)

KA-50 (G2)

Operating Pressure

0.15 - 0.8 MPa

Operating Temperature

-20°C - 70°C

Medium

Compressed air (in accordance with ISO 8573-1 standard)

Materials

Valve Body: Aluminum Alloy

Seals: NBR Rubber

Cracking Pressure

0.05 MPa

3. Installation Steps

Pre-installation Preparation

Ensure system pressure matches the valve's rated pressure

Verify that the valve model and specifications meet installation requirements

Ensure a clean installation environment to prevent impurities from entering the valve

Installation Process

Determine the fluid flow direction, ensuring alignment with the arrow indicator on the valve body

Use appropriate tools (such as a wrench) to install the valve into the pipeline system

Be careful not to over-tighten to avoid damaging threads or the valve body

Allow sufficient space during installation for future maintenance and inspection

Post-installation Check

Inspect connections for tightness and leaks

Perform system pressure testing to ensure proper valve operation

4. Operation Guide

Normal Operation

When compressed air enters from port P, the pressure overcomes the spring force, pushing the valve core open and allowing air to flow to port A

When pressure at port P decreases or disappears, the spring force pushes the valve core back to the valve seat, preventing air from flowing back from port A to port P

Precautions

Do not exceed the rated working pressure and temperature range

Avoid severe vibration and impact

Regularly check the valve's working condition to ensure proper operation

5. Maintenance

Daily Inspection

Regularly check for valve leakage

Inspect the valve body and connection parts for damage or corrosion

Periodic Maintenance

Based on usage frequency and environmental conditions, a comprehensive inspection is recommended every 6-12 months

Clean the valve exterior to remove dust and dirt

Inspect the condition of seals and replace them promptly if worn or aged

Long-term Storage

Store the valve in a dry, well-ventilated environment

Avoid direct sunlight and high-temperature environments

Clean the valve interior before storage to prevent residual impurities

6. Safety Precautions

Before installation and maintenance, always shut off system pressure and bleed air

Do not exceed the valve's rated working pressure and temperature range

Regularly check the valve's operating status to detect and address issues promptly

When replacing parts, use genuine WENK Pneumatic accessories

If any abnormal conditions are found, immediately stop use and perform inspections

Our Commitments & Core Advantages

1. We are a factory specializing in the production of pneumatic components, with mature manufacturing experience and technology.

2. We manufacture and supply a wide range of series and specifications of air cylinders and pneumatic components, providing you with flexible options.

3. We can undertake the customization business of various pneumatic components according to the specific needs of customers.

We adhere to the service concept of efficiency and thoughtfulness, making you feel comfortable throughout the cooperation process, just as smooth as cooperating with a close friend.