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WENK Pneumatic HV Series Hand Valve

The HV Series Hand Rotary Valve by WENK Pneumatic is a premium manual control valve designed for precise pneumatic system regulation. Featuring a robust brass body with corrosion-resistant treatment, this valve offers exceptional durability and long service life.

Available in 4/2 way and 4/3 way configurations, the HV Series provides smooth operation with excellent tactile feedback and precise positioning. Its compact design makes it suitable for space-constrained applications while maintaining a large effective flow area that minimizes pressure loss.

With multiple port sizes from 1/4" to 1/2" and various thread types, this versatile valve supports diverse installation requirements. Ideal for industrial automation, fluid control systems, and pneumatic machinery, the HV Series delivers reliable performance in operating pressures up to 1.0MPa and temperatures ranging from -20°C to 70°C.

product Details

product description

Product Detail

Model		HV-02	HV-03	HV-04
Working Media		Clean air
Action Mode		Manual control
Port Size		G1/4	G3/8	G1/2
Max. Working Pressure		0.8Mpa
Proof Pressure		1.0MPa
Working Temperature Range		0℃~60℃
Lubrication		No Need
Material	Body	Aluminum Alloy
	Seal	NBR

HV Series Hand Rotary Valve User Guide

1. Product Introduction

The WENK Pneumatic HV Series Hand Rotary Valve is a manually operated pneumatic directional control valve that controls airflow direction through handle rotation. This series features:

Robust brass body with corrosion-resistant treatment
Smooth operation with excellent tactile feedback and precise positioning
Large effective flow area minimizing pressure loss
Compact design for space-constrained applications
Versatile mounting options (panel or body mount)
Suitable for various pneumatic control systems

2. Technical Specifications

Working medium: Compressed air filtered through a 40μm filter

Working pressure range: 0~0.8MPa

Proof pressure: 1.0MPa

Working temperature range: -20~70°C

Operation method: Manual rotation

Position types: 4-port 2-position, 4-port 3-position

Port sizes: 1/4", 3/8", 1/2"

Thread types: PT, G, NPT

Effective flow area:

HV-02: 30mm² (Cv=1.68)

HV-03: 30mm² (Cv=1.68)

HV-04: 30mm² (Cv=1.68)

Operating angle: 90°

Body material: Brass

Seal material: Nitrile Butadiene Rubber (NBR)

3. Installation Steps

Determine the installation location and method (panel mount or body mount)

Prepare appropriate mounting accessories based on the installation method

Panel mounting:

Insert the valve into the panel opening

Secure the valve with the provided nut

Ensure the valve is firmly installed without looseness

Body mounting:

Fix the valve to the mounting surface using bolts

Ensure the mounting surface is flat and the valve is vertical

Pneumatic connection:

Identify port functions (P: Supply, A/B: Output, R/S: Exhaust)

Use appropriate sealing material (e.g., Teflon tape) on threaded connections

Connect ports according to the pneumatic circuit diagram

Ensure connections are secure and leak-free

4. Operation Guide

4.1 4-port 2-position Hand Rotary Valve

Handle position "0": Initial position, air circuit status depends on specific model

Handle rotated 90° to position "1": Circuit switched, P→A connected, B→R connected

Handle rotated 90° to position "2": Circuit switched, P→B connected, A→R connected

4.2 4-port 3-position Hand Rotary Valve

Handle position "0": Middle position, all ports blocked (closed center)

Handle rotated 45° to position "1": Circuit switched, P→A connected, B→R connected

Handle rotated 45° to position "2": Circuit switched, P→B connected, A→R connected

4.3 Operation Precautions

Rotate the handle smoothly, avoiding excessive force

Confirm accurate positioning after handle rotation

Avoid frequent switching under pressure to prevent shortened valve life

If equipped with a locking device, lock the handle position after operation

5. Maintenance

Regular inspection:

Weekly: Check valve exterior for damage

Monthly: Inspect connections for leaks

Quarterly: Verify operational performance for smooth switching

Cleaning:

Clean the valve exterior with dry compressed air

For internal contamination, disassemble and clean (professional operation required)

Avoid using corrosive cleaning agents

Lubrication:

Generally no lubrication required

If lubricated air is used, ISO VG32 or equivalent grade oil is recommended

Lubrication frequency depends on operating environment, typically quarterly

Storage:

Clean the valve and apply anti-rust oil for long-term storage

Store in a dry, ventilated environment free from corrosive gases

Avoid direct sunlight and high-temperature environments

6. Safety Precautions

Always shut off air supply before installation and maintenance

Do not exceed the rated pressure

Avoid use in environments with corrosive gases, dust, or moisture unless specially protected

Wear appropriate protective equipment during operation

Immediately stop use and inspect if abnormalities are detected

Repairs should be performed by qualified personnel

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.

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