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0102030405
WENK Pneumatic WLSA Series In-line Manual Valve
Product Detail
Low Working Pressure |
-99.99~0Kра (-750-0mmHg) |
Working Pressure |
0.1-0.9Mpa(1-9kgf/cm²） |
Proof Pressure |
1.32Mpa(13.5kgf/cm²） |
Working Temperature Range |
0℃~60℃ |
Applicable Pipe |
PU Tube |
Body Material |
Plastic |
WLSA Series Pipe Type Hand Valve User Guide
Product Introduction
The WLSA Series Pipe Type Hand Valve is a high-quality manual control valve manufactured by WENK Pneumatic, specifically designed for direct installation in pipeline systems. This valve features a compact inline design with a sturdy handwheel actuator, providing precise flow control and reliable shut-off capabilities for various industrial applications.
This product is constructed from durable materials including glass-reinforced polyamide or metal alloys, offering excellent corrosion resistance and long service life. Available in multiple sizes and connection types, it is suitable for water, air, and other compatible media in both above-ground and underground installations. The quarter-turn operation ensures quick and efficient flow regulation, making it an ideal choice for demanding fluid control systems.
Installation Guide
Preparation Before Installation
- Confirm that the required valve specifications match the pipeline system requirements
- Check that the valve is intact without cracks, deformation, or other defects
- Prepare necessary tools: wrenches, sealing tape, etc.
- Ensure a clean working environment to prevent dust and impurities from entering the pipeline system
Installation Steps
- Shut off the system fluid supply to ensure no pressure during installation
- Check the valve flow direction marking (if any) to ensure correct installation orientation
- For threaded connections, wrap an appropriate amount of Teflon tape around the threads (clockwise direction)
- Connect the valve to the pipeline system and tighten moderately with a wrench, but do not over-tighten to avoid damaging the threads
- Check all connections for tightness and no leakage
- Slowly open the fluid supply and check if the valve operates normally
Installation Notes
- Ensure the valve is installed in a position that is easy to operate and maintain
- For underground installation, ensure there is sufficient space around the valve for maintenance
- Avoid subjecting the valve to additional stress or distortion during installation
- When installing large valves, use appropriate supports to prevent pipe weight from acting on the valve
Operation Guide
Normal Operation
- Familiarize yourself with the valve operation method: usually clockwise rotation of the handwheel is for closing, counterclockwise rotation is for opening
- Operate the handwheel smoothly and slowly to avoid sudden force causing system pressure fluctuations
- For quarter-turn valves, when the handwheel rotates 90 degrees, the valve should be in the fully open or closed position
- Observe changes in system pressure and flow to confirm that the valve operation meets expectations
Multi-turn Valve Operation
- For valves requiring multiple rotations, note the handwheel positions when fully open and fully closed
- After the valve is fully open, reverse the handwheel slightly to ensure tight threading and prevent loosening damage
- During operation, if abnormal resistance is encountered, stop operation and check the cause
Usage Precautions
Safety Precautions
- Ensure you understand the system pressure and medium characteristics before operation
- Wear necessary protective equipment, such as gloves and safety goggles
- Avoid maintenance or adjustment when the valve is under high pressure
- Regularly check the valve for leaks, corrosion, or other abnormal conditions
Maintenance
- Regularly inspect the valve appearance; replace promptly if there are cracks, deformation, or other abnormalities
- Keep the valve clean, especially the handwheel and operating parts
- Regularly add appropriate lubricant to the valve stem and threaded parts
- For valves not in use for a long time, operate them several times regularly to prevent internal components from sticking
- Check if the packing gland is appropriate, based on flexible valve stem operation, do not overtighten
Troubleshooting
Common Problems and Solutions
-
Valve Leakage
- Cause: Damaged seals; loose threaded connections; cracked valve body
- Solution: Replace seals; retighten connections; replace damaged valve
-
Difficult Operation
- Cause: Rusted or contaminated valve stem; insufficient lubrication; overtightened packing
- Solution: Clean and lubricate the valve stem; adjust the packing gland
-
Valve Cannot Fully Close
- Cause: Internal contamination; damaged sealing surface; bent valve stem
- Solution: Clean valve interior; inspect sealing surface; replace damaged parts
-
Damaged Handwheel
- Cause: Excessive force during operation; wear from long-term use; material aging
- Solution: Replace the handwheel; avoid using excessive force when operating the valve
Valve Leakage
- Cause: Damaged seals; loose threaded connections; cracked valve body
- Solution: Replace seals; retighten connections; replace damaged valve
Difficult Operation
- Cause: Rusted or contaminated valve stem; insufficient lubrication; overtightened packing
- Solution: Clean and lubricate the valve stem; adjust the packing gland
Valve Cannot Fully Close
- Cause: Internal contamination; damaged sealing surface; bent valve stem
- Solution: Clean valve interior; inspect sealing surface; replace damaged parts
Damaged Handwheel
- Cause: Excessive force during operation; wear from long-term use; material aging
- Solution: Replace the handwheel; avoid using excessive force when operating the valve
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.
