Description
The Mishimoto Performance One-Way Check Valve, part number MMFT-CHKVLV-34, is a 3/4-inch diameter fabrication component engineered to add an extra layer of protection to any catch can set-up. Built with an anodized aluminum housing and a Viton diaphragm, this check valve is rated for up to 100psi while allowing ample airflow through the system.
As a dedicated one-way check valve, this Mishimoto fabrication part keeps unwanted pressure from reaching vital components in your catch can system, directing airflow in a single, clearly marked direction. The Viton diaphragm and seals deliver superior chemical resistance, helping the valve stand up to the demands of a performance catch can circuit, while the anodized aluminum housing is built for durability. Rated with a Grade Type of Performance and a cracking pressure of 1 PSI, this check valve is designed to open and flow efficiently while still holding back pressure when needed. Best of all, the valve is fully serviceable and backed by the Mishimoto Lifetime Warranty, giving you a worry-free installation.
Vehicle Applications
The Mishimoto Performance One-Way Check Valve is a universal-fit fabrication component designed for use with 3/4-inch air lines, making it suited to a wide range of catch can setups where added pressure protection is needed. Because it is built around a standard 3/4-in port diameter, it integrates into existing catch can plumbing without requiring vehicle-specific fitment.
Features
- Durable anodized aluminum construction
- Universal fitment for 3/4-in air lines
- One-way flow direction with clear markings
- Viton diaphragm construction for superior chemical resistance
- Fully serviceable design
- Mishimoto Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMFT-CHKVLV-34
- Product Type: Fabrication
- Port Outside Diameter: 0.75 in (3/4 in)
- Grade Type: Performance
- Cracking Pressure: 1 PSI
- Max Fluid Pressure: 100 PSI
- Housing Material: Anodized aluminum
- Diaphragm/Seal Material: Viton
- Purchase Includes: One-Way Check Valve, Mishimoto Lifetime Warranty
Frequently Asked Questions
What is the maximum pressure rating of the Mishimoto Performance One-Way Check Valve?
This check valve has a maximum fluid pressure rating of 100 PSI.
What size air lines does this check valve fit?
It is a 3/4 inch (0.75 in) diameter valve designed for universal fitment on 3/4-in air lines.
What materials are used in this check valve?
It features an anodized aluminum housing along with a Viton diaphragm and seals for superior chemical resistance.
Is the Mishimoto check valve serviceable?
Yes, the check valve is fully serviceable.
What is the cracking pressure of this valve?
The cracking pressure is 1 PSI.
What warranty comes with this product?
It is covered under the Mishimoto Lifetime Warranty, and the purchase includes the One-Way Check Valve plus that Lifetime Warranty.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.





