Expansion Vessel Service Valve 3/4" FI x 3/4" Swivel FI

The Expansion Vessel Service Valve 3/4" FI x 3/4" Swivel FI is a brass isolation valve designed for easy servicing of expansion vessels in sealed heating systems, featuring swivel connections for flexible installation and a ball valve mechanism for reliable shut-off.

Product Description

The EVSV is a service valve that allows isolation of the expansion vessel without draining the entire heating system, facilitating maintenance or replacement. Made from durable brass, it includes 3/4" female inlet and 3/4" swivel female inlet for secure and adaptable connections. Suitable for domestic and light commercial heating systems, it ensures compliance with safety standards and simplifies system upkeep.

Key Features

• Swivel connections: 3/4" FI x 3/4" swivel FI for easy alignment and installation.
• Ball valve mechanism: Provides reliable shut-off and long-term durability.
• Brass construction: Corrosion-resistant for extended service life.
• Isolation function: Allows vessel servicing without system drain-down.
• Compact design: Space-saving for tight installations.

Technical Specifications

• Model: EVSV – Expansion Vessel Service Valve.
• Connections: 3/4" female inlet x 3/4" swivel female inlet.
• Material: Brass.
• Maximum pressure: 10 bar.
• Temperature range: -10°C to 110°C.
• Certifications: WRAS approved.

Dimensions & Weights

• Length: 100 mm.
• Weight: 0.3 kg.

System & Application Notes

• Ideal for sealed heating systems with expansion vessels.
• Compatible with boilers, heat pumps, and underfloor heating.
• Suitable for domestic and light commercial use.
• Installation by qualified plumbers; connect between vessel and system.
• Supports easy maintenance and system integrity.