Pneumatic Pinch Valves Standard Models



	Overview
	Applications
	Solenoid Pinch Valves
	Pneumatic Pinch Valves
	Standard & Optional Features
	Valve Models
	Custom Pinch Valves
	Modular Controller Boards
	Quality System

Pneumatic Pinch Valves

Valve Models

Our pneumatic pinch valves are designed to work with flexible tubing, where easy replacement of the entire fluid path is required. These valves are robustly designed making them suitable for pressure or vacuum services.

General Specifications

Dual acting, pneumatically-actuated pinch valve, available for either normally-opened (N/O) or normally-closed (N/C) operation.
Capable of pinching flexible tubing sized from 0.125" (3.2 mm) to 1.0" (25.4 mm) OD.
Accommodate a tubing hardness of <70 Durometer (Shore A). Higher tubing specifications may also be possible dependent upon the application.

Standard Models & Specifications

Contact Acro’s engineers if your tubing specifications exceed those stated below to discuss tailoring a valve to your requirements. Select a link to the model of interest to access product literature and engineering drawings.

Pneumatic Pinch Valve Models


Model (literature)	932	933	934	935

Operating Pressure	30–125 psig	45–125 psig	65–125 psig	65–125 psig

Tube Loading	Snap In	Snap In	Snap In	Snap In

Tube O.D. Range	0.125" – 0.250" (3.2 mm-6.4 mm)	0.250" – 0.375" (6.4 mm-9.5 mm)	0.500" – 0.750" (12.7 mm-19.1 mm)	0.75" – 1.00" (19.1 mm-25.4 mm)

Tube Materials	<70 Durometer (Shore A)	<70 Durometer (Shore A)	<70 Durometer (Shore A)	<70 Durometer (Shore A)

State*	N/O or N/C	N/O or N/C	N/O or N/C	N/O or N/C

Mounting Design	Panel or base	Panel or base	Panel or base	Panel or base

Seals	Panel	Panel	Panel	Panel

Manual Override	Push Button	Push Button	None	None

*When the valve is in a de-energized state, normally-opened (N/O) tubing is not pinched; normally-closed (N/C) tubing is pinched and the flow stopped

Requirements

Source of compressed air or gas for power: clean, lubricated air is most common but any inert gas will serve as the power required to actuate the valve. Minimum operating pressure is determined by the stiffness of the tubing, media pressure, and desired response time; typically, at least 30–60 psig (2–4 bars) is required (model dependent). Maximum supply pressure is limited to 125 psig (8.6 bars).

Three-way control valve: controls the operating pressure (gas/air). May be either manually or electrically operated. Acro can supply the three-way control valve or the customer may source themselves.