ASC Series One-Way Throttle Valve | Aluminum Alloy In-Line Pneumatic Speed Control Valve

Brand: SOLH by Richge Technology | Universal AirTAC Standard Pneumatic Flow Control Valve

1. Product Overview

     The SOLH ASC series is a cost-effective aluminum alloy in-line one-way throttle valve widely adopted in the Chinese pneumatic market. It features the same core pneumatic functions as the AS series but adopts a more durable threaded in-line installation structure with an all-aluminum square body. Designed for standard cylinder speed regulation, it realizes free forward air intake and precise exhaust throttling control. With compact structure, stable adjustment and universal thread specifications, it is the mainstream economical speed control solution for general automated pneumatic circuits.

2. Core Working Function (Exhaust Throttling Principle)

     The ASC valve follows the standard exhaust throttling control logic, the most reliable method for pneumatic cylinder speed regulation:

     • Forward Air Intake (Cylinder Extension): The built-in check valve fully opens, enabling almost unobstructed straight-through airflow with zero flow loss, ensuring fast and smooth cylinder action.

     • Reverse Exhaust (Cylinder Retraction): The check valve closes automatically. Exhaust air passes through the precision needle valve for adjustable throttling, realizing accurate cylinder retraction speed control.

      • Core Application: Precisely adjust the extension or retraction speed of double-acting cylinders; exhaust-side throttling is the most commonly used and stable pneumatic speed regulation method in industrial scenarios.

3. Model Coding Rules & Thread Specification

     Coding Format: ASC[Size Series]-[Thread Caliber]+[Thread Suffix]

  3.1 Size & Caliber Definition

     • 100 Series: 06 = G1/8 (PT1/8)

     • 200 Series: 08 = G1/4 (PT1/4) | Most universal mainstream model

     • 300 Series: 10 = G3/8 (PT3/8), 15 = G1/2 (PT1/2)

  3.2 Thread Type Suffix

     • Blank: Standard PT taper thread (default)

     • G: British standard G parallel thread

     • T: NPT American standard taper thread

4. Full Series Standard Specifications & Flow Parameters

5. Core Technical Parameters

6. Structural Features & Installation Instructions

     • Integrated Aluminum Alloy Square Body: Compact and lightweight structure with high structural strength, not easy to deform. Adopts full threaded in-line design without built-in push-fit joints, requiring separate pipe fittings for tubing connection, featuring strong compatibility and high durability.

     • Clear Flow Direction Identification: Standard flow arrow marked on the valve body, pointing to the cylinder side (exhaust throttling direction) to avoid reverse installation errors and ensure correct speed regulation logic.

     • Lockable Anti-Vibration Adjustment: Equipped with top adjustment knob and lock nut. After speed parameter setting, the nut can be locked to prevent parameter drift caused by equipment vibration, maintaining long-term stable operation.

     • Omnidirectional Installation: Supports arbitrary angle installation with no direction limitation, adapting to various complex pipeline layout environments on site.

     • Sensitive & Precise Regulation: Precision needle valve core ensures smooth stepless speed adjustment, effectively solving cylinder jitter and unstable speed problems.

7. Core Selection Difference: ASC vs AS Series

8. Professional Selection Guide

     • Micro Cylinder & Small Flow Circuit: ChooseASC100-06 (G1/8), suitable for φ12–φ20 small-bore cylinders and precision micro pneumatic control.

     • Standard Ordinary Cylinders (Most Universal): Choose ASC200-08 (G1/4), matching φ12–φ40 conventional cylinders, applicable to most automated production lines, packaging and clamping equipment.

     • Large Bore Cylinder & High Flow Demand: Choose ASC300-10 (G3/8) / ASC300-15 (G1/2), for φ50 and above large-bore cylinders and high-speed heavy-load pneumatic systems.

One Sentence Summary

     The SOLH ASC series is a universal aluminum alloy threaded one-way exhaust throttle valve, featuring free intake and precise exhaust speed regulation, lockable anti-vibration structure and cost-effective performance. It is the preferred economical speed control valve for standard pneumatic cylinder reciprocating motion, widely compatible with AirTAC domestic pneumatic systems.