Product Overview
The Aladco® Equa-Check® valve is a normally closed check valve that can be either overridden manually or by air piloting to allow two-way flow. The tightly sealed Equa-Check® valves are used on pneumatic devices to stop motion upon loss of air pressure and prevent the device from drifting.
The Equa-Check® valve is specifically designed for use in pneumatic applications where two-way flow is maintained to a device for load balancing. Combined with a pressure regulator to control air flow to and from a pneumatic tool balancer or manipulator, the Equa-Check® valve will hold position and not be allowed to drop until the override of the Equa-Check® valve is activated.
Features
- Superior, self-cleaning ball and seat seal provides long product life
- Exceeds ANSI Class VI Leak Standard (bubble tight)
- Body is made of high strength, lightweight, anodized 6061 aluminum alloy (Stainless Steel 303 is optional in some models)
- Variety of porting options
- Designed for use with lubricated or non-lubricated air systems
- Tamper resistant with no required maintenance
- Prevents load drift and provides rapid stopping of load
- Patented and Made in Waukesha, Wisconsin USA
- Standard 3-year warranty
Equa-Check® Pneumatic Check Valve Dimensions
Additional Notes:
- MTTF is over 100 million cycles for Buna-N seals and over 40 million cycles for Viton® seals
- NPTF Ports conform to ASME B1.20.1-2013 Pipe Threads, General Purpose (Inch)
- BSPP (G) and M5 Ports conform to ISO 16030:2003: Pneumatic fluid power – Connections – Ports and stud ends
- Operating pressure 15 to 120 psi
- Operating temperature 30° to 150°F
- 10-32 UNF models have only one mounting hole
- This valve has not been designated for use on vacuum, air over oil or high pressure applications
Model Ordering Information
Product Configurator
The U.S. list price displayed is for individual quantities of 1-24. Contact your Aladco® Distributor or Aladco® for volume pricing of 25 or more valves.
Additional information
| Model Type | 40 : Equa-Check Valve® – Extended Manual Override, 41 : Equa-Check Valve® – Flush Manual Override, 42 : Equa-Check Valve® – No Manual Override |
|---|---|
| Inlet-Outlet Port Size | 32 : 10-32 UNF Port, 32 : M5 ISO Metric Port, 12 : 1/8 Port, 25 : 1/4 Port, 38 : 3/8 Port, 50 : 1/2 Port |
| Seal Type | 01 : Buna-N Seals, 02 : Viton® Seals |
| Material Body | [blank] : Aluminum, SS : 303 Stainless Steel |
| Thread Class | [blank] : NPTF Thread Class, [blank] : UNF Thread Class, BSPP : G BSPP Thread Class, M5 : ISO Metric Thread Class |
| Optional Suffix | [blank] : No Optional Features, NCP : No Cracking Pressure |
Technical & Application Files
Equa-Check® Load Balancers • Equa-Check® Full Circuit Diagram • Equa-Check® CAD Files