[RLV1003] APEX Pressure Relief Valve With Vacuum Break 3.7M

APEX Pressure Relief Valve 3.7m – RV-20 Series

The APEX RV-20 Pressure Relief Valve 3.7m is a high-quality safety valve designed to protect low and medium pressure hot water systems from excessive pressure build-up. Engineered for reliable performance, this valve ensures safe operation across a wide range of residential, commercial, and marine applications.

The RV-20 series is designed to automatically relieve excess pressure, helping to protect hot water cylinders, pipework, and system components from damage. It is suitable for use in pressure systems where dependable safety control is essential.

This valve features a 20mm (3/4") BSP male inlet and a 15mm (1/2") BSP male outlet, making it compatible with a wide range of plumbing installations. It also includes an integrated vacuum breaker fail-safe, providing protection against over-pressure and implosion scenarios.

Standard pressure settings are available at 37 kPa, 73 kPa, and 120 kPa, offering flexibility for different system requirements.

Features:

• APEX RV-20 Pressure Relief Valve 3.7m
• Relieves pressure in low and medium pressure hot water systems
• 20mm (3/4”) BSP male inlet
• 15mm (1/2”) BSP male outlet
• Includes vacuum breaker fail-safe against over-pressure and implosion
• Suitable for marine and pressure system applications
• Standard pressure settings: 37, 73, and 120 kPa
• Forged high-quality corrosion-resistant DR brass body
• Silicone rubber seals rated to withstand up to 99°C
• Serviceable design – body unscrews for easy cleaning (no body screws)
• Unique vacuum break allows retrofit compatibility with similar relief valves

Ideal for:

• Hot water cylinder systems
• Low and medium pressure plumbing systems
• Residential and commercial installations
• Marine pressure systems
• System safety and pressure protection
• Replacement and retrofit applications

The APEX RV-20 Pressure Relief Valve delivers advanced safety features, durable construction, and reliable pressure control for demanding plumbing environments.

Advanced protection. Serviceable design. Trusted APEX quality.

Specification sheet