Pneumatic single L redirectional valve is a commonly used pneumatic control element, mainly used to control the direction, flow and speed of gas. Its working principle is to use the energy of compressed air to push the valve spool in the valve body, so that it switches under the action of gas, thereby realizing the direction control of the gas.
There are two types of L-type reversing valves: normally closed and normally open, normally closed reversing valves have no external force, the valve port is closed, while normally open reversing valves are the opposite. By changing the position of the spool, the L-shaped reverse valve can switch the direction of the gas and adjust the flow rate of the gas.
In addition, L-shaped reversing valves are compact, lightweight, and easy to install and maintain, so they are widely used in automation control systems, chemicals, pharmaceuticals, food, printing, packaging, machinery and other fields. When using L-shaped reversing valves, factors such as the quality, working pressure, and temperature of the compressed air need to be considered to ensure its normal operation and extend its service life.
| Model representation method | ||||||||||||
| WH | -600 | —Q1 | —C1 | —F | —16 | —P | —25 | —D1 | —B | —W2 | —B2 | —L |
| >1. Weiheng brand | >2. Drive mode | >3. Valve body type | >4. Connection method | >5. Sealing material | >6. Nominal pressure | >7. Valve body material | >8. Nominal diameter | >9. Control mode | >10. Explosion-proof level | —20~150℃ | >12. Accessory options | >13. Three flows |
| 1~7 mandatory options, 8~13 optional | ||||||||||||
| 1 codename | 5 codename | Sealed material | 10 code | Explosion-proof rating | |
| WH | Weiheng brand | F | PTFE | B | ExdIl BT4 Gb explosionproof and explosion-proof type |
| PPL | Para-polyphenylene | BZ | ExdllCT5 Gb explosion-proof and explosion-proof type | ||
| 2 codename | Drive mode | H | Metal hard seal | BC | Exdll CT6 Gb explosionproof and explosion-proof type |
| 600 | Pneumatic actuator series | Y | cemented carbide | BM | ExmbllT4 Gb cast explosion-proof type |
| 900 | Electric actuator system | X1 | Ding Qing rubber NBR | BA | Exiall CT6Ga intrinsically safe and explosion-proof |
| 2001 | Column plastic actuator angle seat valve series | X2 | Natural rubber NR | ||
| 2002 | Stainless steel actuator angle seat valve series | X3 | EPDM | 11 codenames | Medium temperature |
| X4 | Viton rubber FPM | W1 | -20-80C | ||
| 3 codename | Body type | X5 | Food grade silicone rubber SI | W2 | -20-150C |
| Q1 | Two-way valve | F46 | Fully lined polyperfluoroethylene FEP | W3 | -20-250C |
| Q2 | Three-way valve | PFA | Fully lined with soluble PTFE PFA | W4 | -29-425C |
| Q3 | Four-way valve | F4 | Fully lined PTFE | W5 | -29-650C |
| Q4 | Stationary ball valve | N | nylon | W6 | -196-60C |
| Q5 | V-ball | TC | Lined ceramic | ...... | ...... |
| Q6 | Low profile ball valve | J | Rubber lining | It has a special temperature that can be designed and manufactured according to customer requirements | |
| Q7 | Sanitary grade ball valves | PEEK | Polyether ether ketone | ||
| Q8 | Plastic ball valves | W | When the ring | 12 codenames | Accessory selection |
| Q9 | High Vacuum Ball Valve | ...... | ...... | B1 | 2-position, 3-way solenoid valve |
| Q10 | Fluorine ball valve in the whole village | Other special sealing materials can be designed and manufactured according to customer requirements | B2 | 2-position 5-way solenoid valve | |
| Q11 | Cryogenic ball valves | B3 | 2-position 3-way explosion-proof solenoid valve | ||
| Q12 | Insulated ball valve | 6 codename | Nominal pressure | B4 | 2-position 5-way explosion-proof solenoid valve |
| Q13 | Eccentric hemispherical valve | ...... | ...... | B5 | Filter pressure reducing valve |
| Q14 | Tank bottom valve | B6 | Limit switch | ||
| Q15 | Ceramic ball valves | 7 codename | Body material | B7 | Explosion-proof limit switch |
| D1 | Centerline soft-sealed butterfly valve | Q | Ductile iron HT200 | B8 | Hand manipulation mechanism |
| D2 | 3. Eccentric butterfly valve | C | carbon steel | B9 | Locator |
| D3 | Sanitary Butterfly Valve | P | Stainless steel 304 | ...... | ...... |
| D4 | Plastic butterfly valve | R | Stainless steel 316 | ||
| D5 | Ventilation butterfly valve | PL | Stainless steel 304L | 13 codenames | Three flows |
| D6 | Fluorine butterfly valve in the whole village | RL | Stainless steel 316L | L | Tee L-type BC switching |
| D7 | High vacuum butterfly valve | U | PVC UPVC | T1 | Tee T-type C-port switch |
| D8 | Powder butterfly valve | PP | Reinforced polypropylene RPP | T2 | Tee T-type AB switching |
| Z1 | Gate valve | L | Aluminum alloy | T3 | Tee T-type AC switching |
| Z2 | Knife gate valve | ...... | ...... | T4 | Tee T-type B-port switch |
| J1 | Globe valve | Other special valve body materials can be designed and manufactured according to customer requirements | |||
| J2 | Bellows cut stop valve | ||||
| J3 | Angle seat valve | 8 codename | It is called the path | ||
| F1 | Upward expansion discharge valve | ...... | ...... | ||
| F2 | Downward discharge valve | ||||
| Other special valve body materials can be designed and manufactured according to customer requirements | 9 code | Control mode | |||
| Z | Standard switch type | ||||
| 4 codenames | Connection | T1 | Integral switching type | ||
| C1 | Female thread | T2 | Overall adjustment | ||
| C2 | By order | T3 | RS485 bus type | ||
| C3 | Male thread | D1 | Double acting | ||
| C4 | flange | D2 | Double-acting adjustment type | ||
| C5 | KF vacuum chuck | E1 | Uni-acting normally closed | ||
| C6 | weld | E2 | Single-acting normally closed regulation type | ||
| C7 | Pair clip | E3 | Single-acting and always open | ||
| C8 | Clamps | E4 | Single-acting normally open adjustment type | ||
Pneumatic Single L-shaped Reversing Valve
The Pneumatic Single L-shaped Reversing Valve is a high-performance valve designed to control the direction of airflow in pneumatic systems. Its L-shaped construction makes it compact and efficient, ideal for applications that require space-saving design without compromising on functionality. Whether used for actuator control, fluid regulation, or pressure switching, the Single L-shaped Reversing Valve offers precise directional control and is widely used across industries such as automated machinery, water treatment, and chemical processing.
This valve provides reliable performance in both low- and high-pressure environments, and it is constructed using durable materials to ensure long-term operational life. It is optimized for easy installation, maintenance, and integration into various automated systems, making it a versatile choice for industrial applications.
The Pneumatic Single L-shaped Reversing Valve offers a variety of key benefits and features that make it an excellent choice for industrial pneumatic systems:
The valve allows for accurate switching between flow directions, ensuring that air or fluid is directed precisely where it is needed. This makes it ideal for applications that require reliable flow control, such as automated machinery or actuator systems.
The L-shaped design makes the valve space-efficient, which is particularly useful in applications where space is limited, such as in tight equipment setups or modular systems. Despite its compact design, the valve maintains high performance and durability.
The valve operates via pneumatic actuation, which is fast, energy-efficient, and cost-effective. Pneumatic actuation also allows for rapid response times and is suitable for high-frequency operations.
Made from high-quality materials such as stainless steel or carbon steel, the valve is designed to withstand harsh environments. It is corrosion-resistant and suitable for high-pressure and high-temperature applications.
The Pneumatic Single L-shaped Reversing Valve can be easily integrated into automated systems such as PLC-controlled operations and SCADA systems. It features multiple connection types (flanged, threaded, or welded), allowing for flexible installation.

Below are the technical specifications for the Pneumatic Single L-shaped Reversing Valve:
| Specification | Details |
|---|---|
| Valve Type | Pneumatic Single L-shaped Reversing Valve |
| Body Material | Stainless Steel, Carbon Steel, Cast Iron |
| Seal Material | PTFE, NBR, Viton |
| Pressure Rating | 0-40 bar (PN40) |
| Temperature Range | -10°C to 150°C |
| Flow Control | Directional Control (On/Off) |
| Actuation Type | Pneumatic (Spring-return or Double-acting) |
| Size Range | 1” to 6” (DN25 to DN150) |
| Connection Type | Flanged, Threaded, Butt-weld |
| Operating Air Pressure | 4 to 8 bar |
| IP Rating | IP65 (Dust and water-resistant) |
| Flow Coefficient (Cv) | 20 to 300 |
| Automation Interface | PLC, SCADA, DCS |
The Pneumatic Single L-shaped Reversing Valve is used in a wide range of industrial applications. Below are a few example cases where this valve has proven to be a reliable solution:
Problem: In an automated assembly line, precise control over fluid direction is required to move components through various stages of production.
Solution: The Pneumatic Single L-shaped Reversing Valve is integrated into the actuation system, enabling accurate flow direction switching to control the movement of parts and optimize the entire production process.
Problem: Water treatment processes require precise control of fluid flows between different filtration and chemical injection stages.
Solution: The valve’s high-pressure tolerance and precise control make it ideal for managing fluid direction in water treatment systems, ensuring efficient operation and reliable flow distribution.
Problem: Chemical plants need a valve that can handle high temperatures and aggressive chemicals while providing precise flow control.
Solution: Constructed from corrosion-resistant materials, the Pneumatic Single L-shaped Reversing Valve ensures reliable operation in chemically demanding environments, facilitating accurate chemical injection and fluid direction control.
We offer comprehensive technical support for the Pneumatic Single L-shaped Reversing Valve to ensure seamless installation, troubleshooting, and system integration.
Our expert team provides detailed guidance on installation, including site preparation, air supply recommendations, and system integration tips. We ensure that the valve is compatible with your existing system and help design the best integration plan for your needs.
If your application requires a custom configuration or specific valve size, our technical team will assist in customizing the valve specifications to meet your requirements.
For more complex installations, we offer on-site technical support to ensure that the valve is installed correctly and operating as expected. We also provide training sessions to help your team understand the best practices for using and maintaining the valve.
We are committed to providing exceptional after-sales service to ensure long-term reliability and performance of the Pneumatic Single L-shaped Reversing Valve.
We offer comprehensive maintenance plans, including preventive maintenance, periodic inspections, and repair services. Our team ensures that the valve operates at peak performance throughout its lifespan, minimizing downtime.
The Pneumatic Single L-shaped Reversing Valve is covered by a 1-year warranty against manufacturing defects. We offer hassle-free returns and replacement services for any faulty components during the warranty period.
Our 24/7 customer support line is available to assist with technical issues, product queries, and emergency repairs. We ensure that you receive timely and effective support whenever you need it.
The Pneumatic Single L-shaped Reversing Valve is carefully packaged to prevent damage during transit. Below are the packaging specifications:
| Item | Details |
|---|---|
| Packaging Type | Cardboard box with foam protection |
| Dimensions | Custom-sized based on valve size (typically 20x20x20 cm for smaller valves, 40x40x40 cm for larger) |
| Weight | 1-10 kg depending on the valve size and material |
| Shipping Method | Standard freight (air/sea) based on destination |
| Labeling | Product labels with technical details and handling instructions |
The Pneumatic Single L-shaped Reversing Valve is a versatile and reliable valve that provides precise directional control in pneumatic systems. Its compact design, pneumatic actuation, and durable construction make it ideal for applications requiring high reliability and performance in space-constrained environments.
By following the installation guidelines, maintenance tips, and technical support recommendations outlined in this article, you can ensure optimal operation and a long service life for the valve. With our exceptional after-sales support and warranty policies, the Pneumatic Single L-shaped Reversing Valve offers peace of mind, ensuring that your system runs efficiently and smoothly.
For additional details, customization options, or to place an order, please contact our customer support team.
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