Hotun Hiflo 100C Black Dry Trap Tundish 15×32 (HHB100C)

The hotun 100 range of products, combines a tundish and dry-trap to provide a safe and visible discharge from a relief valve direct to a local waste or soil pipe, allowing a flow of water from the discharging T/PRV, whilst eliminating the risk of foul odours from the foul system entering back into the building AND providing regulation required, back-flow contamination & back-siphonage protection to prevent contamination of any wholesome water when connecting to the waste pipe (Category 5 risk water)

In a relief valve discharge application, due to the infrequent nature of the relief valve operating, a wet trap would dry out in time and thereafter allow foul odours back into the building, so is therefore not allowed to be used for PRV discharges.

hotun was invented and patented back in 2014/15. It was the very first and original, dry trap tundish to be available specifically for boiler and unvented water heater installations as a one product solution and was the very first dry trap tundish to be accepted for use with many of Britains major and most respected boiler manufacturers, such as Worcester Bosch, Vaillant, Glowworm, Ideal, Baxi, Potterton, Ariston, Intergas etc.

• hotun is specifically designed and manufactured to achieve compliance for ALL aspects of the (T)PRV to drain installation, including easy visibility at the point of diagnosis with its open sided construction (a vital consideration for easy maintenance)
• The hotun tundish can, if necessary, be easily cleaned whilst in situ, meaning that you do not need to remove it or take it apart for maintenance or cleaning
• The spring and bolt are made from high quality A2 stainless steel meaning they will last for the lifetime of the system
• The valve is made from our own molded high quality drainage specification EPDM rubber, we do not use sheet material meaning we are fully in control of the quality of the material.
• hotun is rated for use up to 120°C so is suitable for use in all applications requiring a temperature rated dry trap tundish
• all of our tundish products now carry a 10 year conditional warranty
• Compatible with hotun detect, in-tundish alarm unit
• All hotun dry trap tundishes are specifically designed to achieve full compliance (when installed in accordance with our installation instructions) with Water and Building Regulations.

Please note that, where required, the D2 and connecting soil pipe must be suitably rated for the appropriate temperatures and flow rates expected when the Temperature Relief Valve (TRV) is operating under failure conditions.

hotun 100C is WRAS approved – WRAS Approval Number: 2101323

Hotun Hiflo 100C Black Dry Trap Tundish 15×32 (HHB100C) Specification:

Inlet pipe size: 15mm (or 1/2″ for imperial applications)

Inlet connection: 15mm Compression nut and olive (supplied)

Outlet pipe size: 32mm – (1 1/4″ equivalent)

Outlet connection: Suitable for 32mm or 1 1/4″ push-fit or universal mechanical fittings (The hotun hiflo 100C outlet size is not compatible with solvent weld fittings)

Rated flow rate: 18LPM

Max flow rate: 20LPM (with optimised pipework – 200mm straight pipe before tundish)

Usual applications:

• Any/all unvented water heaters with combined T/PRV’s up to the rated flow rate.
• Boilers
• HIU’s
• Overflows from water tanks
• Air conditioning drip trays
• MVHR condensation drip trays

NB

1. All D2 downstream pipework and soil pipes for unvented hot water heaters (with Combined T/PRV’s) must be suitably rated for water discharging at 90-95°C.

2. Appliances with PRV’s only (ie boilers and water heaters of less than 15L capacity) do not need a D2 waste pipe temperature requirement