4F Series 5/2 Way Foot Pedal Valve | Direct Acting Full Aluminum Pneumatic Foot Valve

Brand: SOLH by Richge Technology | Full Compatible Replacement for AirTAC 4F Series Foot Valve

1. Product Overview

     The SOLH 4F series is a professional 5/2 way pneumatic foot pedal directional valve fully compatible and interchangeable with the entire AirTAC 4F series. Adopting full die-cast aluminum alloy body and thickened non-slip foot pedal with direct-acting spring reset structure, it is specially designed for double-acting cylinder forward and reverse control. The full series covers four configurable types: standard self-reset, L mechanical self-locking, G safety protective cover, and LG locking + guard integration. It can manually replace solenoid valves for equipment start-stop and directional switching, widely applied in tooling fixtures, stamping, riveting and industrial pneumatic control scenarios.

  1.1 Core 5/2 Way Air Circuit Logic

     • Air Port Definition: P (main air inlet), A/B (dual working outlets), R1/R2 (dual independent exhaust ports)

     • Normal State (Pedal Released): P connects to B for air supply; A connects to R1 for exhaust, cylinder retracts and resets

     • Working State (Pedal Pressed): P connects to A for air supply; B connects to R2 for exhaust, cylinder extends and operates

     • Non-L Standard Type: Instant spring rebound reset after foot release for jog intermittent control

     • L Locking Type: Press once to lock position and maintain air pressure; press again to unlock and reset pressure relief

2. Model Coding Rules & Suffix Definition

     Coding Logic: 4F210 - [Port Size] + [Function Suffix] - [Thread Type]

  2.1 Basic Model & Port Size

     • 4F210: Universal mainstream 5/2 way foot valve base body

     • 06: G1/8 (PT1/8) thread port

     • 08: G1/4 (PT1/4) universal mainstream specification

  2.2 Core Function Suffix Selection Guide

  2.3 Thread Type Suffix

     • Blank: PT taper thread (standard default)

     • G: British standard G parallel thread

     • T: NPT American standard taper thread

  Model Example: 4F210-08 | G1/4 standard self-reset foot valve; 4F210-08LG | G1/4 self-locking foot valve with safety protective cover

3. Core Technical Parameters

4. Selection Distinction: 4F 5/2 Way vs 3F 3/2 Way Foot Valve

5. Structural Core Advantages

     • Dual Independent Exhaust Design: Equipped with two separate exhaust holes to ensure smooth exhaust during cylinder reversing, fast action response and stable operation without lag.

     • Anti-Slip Heavy-Duty Pedal: Roller textured pedal surface increases friction effectively, preventing slipping during high-load stepping and improving operational stability.

     • Stable Independent Locking Mechanism: Independent snap-fit locking structure ensures firm positioning and lightweight unlocking. Note: Not suitable for ultra-high frequency continuous impact working conditions.

     • Optional Safety Protective Cover: Custom plastic dustproof guard effectively avoids accidental reversing caused by falling workpieces or personnel mis-touch, improving on-site operation safety.

     • Full Aluminum Durable Structure: Integral die-cast aluminum alloy body features high hardness, impact resistance and long service life for harsh industrial workshop environments.

6. Typical Application Scenarios

     • Double-Acting Cylinder Manual Control: Air source → 4F foot valve → double-acting cylinder. Self-reset type realizes extend-on-press and retract-on-release; locking type maintains clamping pressure for long-time positioning.

     • Industrial Processing Equipment Control: Professional foot-operated directional switching for stamping machines, riveting machines and grinder fixtures, freeing hands for efficient processing operation.

     • On-Site Equipment Debugging: Temporarily replace solenoid valves with manual foot valves for pneumatic circuit debugging, convenient for equipment trial operation and parameter calibration.

One Sentence Summary

     The SOLH 4F series is a full-aluminum 5/2 way direct-acting foot pedal valve with self-reset, self-locking and anti-misoperation guard options. Featuring dual quick exhaust, large flow and full AirTAC compatibility, it is the standard industrial foot control valve for double-acting cylinder forward/reverse switching and mechanical processing pneumatic control.