Quick Nautic Pressure Relief Valve 1/2" BSP 6 Bar

A genuine replacement safety valve for Quick, Sigmar, and B3 marine water heaters and calorifiers. This brass, chrome-plated valve protects your onboard hot water system from overpressure — an essential safety component that should be inspected and replaced regularly as part of routine maintenance.

The integrated non-return function also allows you to drain the water heater during the off-season, making winterisation straightforward.

Key Specifications

• Fitting: 1/2" BSP male thread
• Pressure Rating: 6–7 bar
• Length: approx. 4.5 cm (1-3/4")
• Material: Brass, chrome-plated
• Includes non-return / drain function

Compatible With

• Quick Nautic marine water heaters
• Sigmar marine calorifiers
• B3 marine water heaters

Don't wait for a failure at sea — a faulty pressure relief valve can cause serious damage to your calorifier and plumbing system. Keep a spare aboard or replace at your next service.