SL Pneumatic 90 Degree Elbow Speed Control Valve

SL pneumatic fittings are 90 degree elbow speed control valves (L type throttle valves) designed to regulate airflow and control cylinder speed in pneumatic systems.

With an integrated adjustable throttle mechanism, these valves allow precise control of airflow, improving motion stability and system efficiency in automation applications.

The 90° elbow (L type) structure enables flexible installation in tight spaces while supporting directional air routing and compact system design.

SL series supports PU tube and nylon tube, with air as the working medium, maximum operating pressure of 0–0.9 MPa, proof pressure up to 1.32 MPa, and working temperature range of 0–60°C.

OEM and ODM customization services are available for thread types, tube sizes, adjustment performance, and branding.

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  • Overview
  • Free Sample
  • Warranty policy

Specification Parameters

Operating Fluid Air
Type Pneumatic Fittings
Proof Pressure 1.32 MPa (13.5 kgf/cm²)
Max. Operating Pressure 0~0.9 MPa (0~9.2 kgf/cm²)
Ambient & Fluid Temperature 0~60°C
Applicable Tubing PU Tube, Nylon Tube

SL pneumatic 90 degree elbow speed control valve L type throttle valve

Model ΦD E B ΦP A R H
SL4-M5 4 20.5 29 11 3.8 M5 8
SL4-01 4 24 37 13 7.5 R1/8 11
SL4-02 4 25 39 13 9.5 R1/4 15
SL6-M5 6 22.5 29 13 3.8 M5 8
SL6-01 6 24 37 13 7.5 R1/8 11
SL6-02 6 25.5 39 13 9.5 R1/4 15
SL6-03 6 29.5 46 13 10 R3/8 19
SL6-04 6 31 50 13 11 R1/2 22
SL8-01 8 26 37 15 7.5 R1/8 11
SL8-02 8 28 39 15 9.5 R1/4 15
SL8-03 8 30 46 15 10 R3/8 19
SL8-04 8 32 50 15 11 R1/2 22
SL10-01 10 31 37 21 7.5 R1/8 11
SL10-02 10 31.5 39 18.5 9.5 R1/4 15
SL10-03 10 33 46 18.5 10 R3/8 19
SL10-04 10 35 50 21 11 R1/2 22
SL12-01 12 31 37 21 7.5 R1/8 11
SL12-02 12 33 39 21 9.5 R1/4 15
SL12-03 12 33.5 46 21 10 R3/8 19
SL12-04 12 35 50 21 11 R1/2 22

Color Options:

Key Features

  • Adjustable airflow regulation for precise speed control
  • 90° elbow (L type) structure for compact installation
  • Push-to-connect quick tube connection
  • Stable and repeatable flow adjustment performance
  • Suitable for PU tube and nylon tube

Applications

  • Pneumatic cylinder speed control
  • Industrial automation systems
  • Robotics and assembly lines
  • Packaging equipment
  • Air control systems

Widely used in pneumatic systems requiring precise airflow control, motion stability, and compact installation layout.

Product Structure & Types

  • SL elbow speed control valve (tube → male thread 90°)
  • Built-in adjustable needle valve mechanism
  • Tube sizes: 4mm, 6mm, 8mm, 10mm, 12mm
  • Thread types: M5, R1/8, R1/4, R3/8, R1/2
  • Common models: SL4-M5, SL6-01, SL8-02, SL10-03, SL12-04

Why Choose Our Pneumatic Valves

  • Professional SL pneumatic throttle valve supplier with full size range
  • OEM / ODM customization for speed control valve manufacturer projects
  • Reliable 90 degree elbow air flow control valve for automation systems
  • High-quality push-to-connect pneumatic valve factory with strict QC system
  • Durable L type throttle valve for precise airflow regulation applications
  • Fast delivery and global B2B supply support

FAQ

Q1: What is an SL pneumatic throttle valve?
It is a 90 degree elbow speed control valve used to regulate airflow and control pneumatic cylinder speed.

Q2: What does a speed control valve do?
It adjusts the airflow rate, which directly controls the speed of pneumatic actuators.

Q3: Why use a 90 degree elbow throttle valve?
It allows both airflow control and directional change, making it ideal for compact installations.

Q4: What does “L type” mean in pneumatic valves?
It refers to the 90-degree elbow structure of the valve.

Q5: What tubing is compatible with SL valves?
They are compatible with PU tube and nylon tube.

Q6: What sizes are available?
Tube sizes range from 4mm to 12mm with multiple thread options such as M5, BSP, and NPT.

Q7: Where are SL speed control valves used?
They are widely used in automation systems, cylinder control, industrial machinery, and air circuits.

Q8: Can SL valves be customized?
Yes, OEM/ODM customization is available for thread type, tube size, adjustment range, and branding.

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Free Sample Request Process:

  1. Select Your Sample: Browse through our product range and choose the sample you'd like to receive.

  2. Submit Your Request: Fill out the sample request form with your shipping details.

  3. Shipping Cost: While the sample itself is free, the buyer is responsible for covering the shipping fee. Please negotiate the shipping cost with us.

  4. Processing: Once your payment is confirmed, we will process your sample request and ship it to your address.

  5. Receive Your Sample: Your sample will be delivered to you within the estimated shipping time. Enjoy trying our product!

1. The warranty period of this product is eighteen months (subject to thefuselage bar code information). During the warranty period, if the productfails or is damaged under normal use according to the operating manual, ourcompany will be responsible for free maintenance.

2. During the warranty period, if damage is caused due to the followingreasons,a certain maintenance fee will be charged,

  • Machine damage caused by mistakes in use and unauthorized repairsand modifcations;
  • Machine damage caused by fre, food, abnormal voltage, other naturaldisasters and Level 2 disasters;
  • Hardware damage caused by artifcial fall and transportation afterpurchase;
  • Machine damage caused by failure to operate according to the user manual provided by our company;
  • Failure and damage caused by obstacles other than the machine (such asexternal equipment factors).

3. When the product fails or is damaged, please fll in all the contents in the”Product Warranty Card” correctly and in detail.

4. The charge of maintenance fees shall be based on our company’s latestadiusted “Maintenance Price List”.

5. This warranty card will not be reissued under normal circumstances.Please keep this card and show it to the maintenance personnel during thewarranty.

6. If you have any questions during the service process, please contact ouragent or our company in time.The company is committed to upgrading new products. If there are anychanges, you can download them from the company website.