Description
Product Overview
The Janhemei 3/4 inch IPS isolation tankless water heater service valve kit is engineered for superior performance and safety in residential water heating systems. Crafted from thick, forged lead-compliant brass, this valve kit withstands significant pressure and corrosion, ensuring long-term reliability. It adheres to strict standards including ANSI/ASME B1.20.1, ASME B1.20.7, NSF, and EPA certifications, guaranteeing compliance with federal and state lead content regulations for drinking water. The product dimensions are 16.33 x 6.1 x 3.54 inches, with a weight of 4.09 pounds, and it includes three pieces for comprehensive installation. Designed for 3/4 inch NPT connections, it fits most tankless water heaters, providing a secure and leak-resistant seal.

Usage
This valve kit is ideal for residential tankless water heater systems, serving homeowners, DIY enthusiasts, and professional plumbers. It is commonly used in maintenance routines to isolate the water heater for repairs or replacements, ensuring safe water flow control. The kit suits environments where regular valve operation is needed—such as annual manual actuation to clear waterways—and is perfect for new installations or upgrades in homes adhering to lead-free plumbing standards. Its robust design handles typical water pressure variations, making it a dependable choice for daily use in single-family houses or apartments.
Why Choose Us
Janhemei stands out with its commitment to quality and safety, using lead-compliant copper and brass materials that exceed industry standards. The forged brass construction enhances durability, reducing the risk of leaks and failures under pressure. Certifications from ANSI/ASME, NSF, and EPA provide assurance of compliance with stringent regulations, offering peace of mind for health-conscious households. Unlike generic alternatives, this kit includes precise NPT threading for easy installation and comes from a manufacturer with a track record of high customer ratings, ensuring you receive a product that combines craftsmanship with reliability.
Key Features
- Forged lead-compliant brass construction for exceptional strength and corrosion resistance.
- 3/4 inch NPT standard size ensures compatibility with most residential tankless water heaters.
- Certified to ANSI/ASME, NSF, and EPA standards for safe drinking water use.
- Includes three pieces for versatile installation and maintenance options.
- Designed for manual annual operation to maintain optimal water flow and system longevity.
FAQ
What certifications does this valve kit have?
It is certified to ANSI/ASME B1.20.1, ASME B1.20.7, NSF, and EPA standards, ensuring it meets lead content regulations for drinking water systems.
Is this valve kit compatible with all tankless water heaters?
Yes, the 3/4 inch NPT size is designed to fit most residential tankless water heaters, but always check your unit’s specifications for confirmation.
How often should I maintain the valve?
Manually operate the valve at least once a year to clear waterways, and have it inspected by a professional every three years for optimal performance.
Does it require batteries or external power?
No, this valve kit operates manually without batteries or power, making it simple and reliable for routine use.
What is the material used in the valve?
It is made from thick, forged lead-compliant brass, which provides durability and safety for drinking water applications.




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