PRODUCT DETAILS
The Truma Boiler Safety Drain Valve (Genuine part no. 70141‑02 / 70142‑05) is an essential safeguard for caravan and motorhome owners using the Truma Ultrastore or Combi water boiler systems. This combined safety and drain valve efficiently removes excess boiler pressure and allows full drainage to prevent freeze damage during winter storage.
Easy Push-Fit or John Guest Connection
Equipped with a 10 mm or 12 mm John Guest push-fit connection, the valve ensures a secure, watertight fit without the need for clamps or tools—just push in the semi-rigid hose until it locks
Pressure Relief & Drainage
It serves a dual purpose: automatically relieving pressure above ~2.8 bar, and enabling manual draining via a simple yellow ball lever. Pulling the lever drains water safely from the system, protecting the boiler and pipework during cold weather .
Durable Construction
Made from rugged, thermostable plastic with sturdy internal brass components, this valve resists heat, pressure, and vibrations. Built to OEM standards, it withstands temperature ranges from −30 °C to +80 °C and pressures up to 4.5 bar without issue .
Simple Installation & Versatility
Replacement is straightforward—turn off the system, depressurize, disconnect the hose, and swap in the new valve. It fits both Ultrastore and Combi boilers, and can be adapted for other flexible piping systems
🔑 Final Thoughts
The Truma Boiler Safety Drain Valve is a critical safety and maintenance component for Truma boiler systems. Its ease of use, reliable safety function, and solid build quality make it a smart, cost-effective solution for preventing freeze damage and ensuring system longevity—perfect for any seasonal or permanent leisure vehicle setup.
Keywords: Truma safety drain valve, Ultrastore boiler valve, Combi boiler drain, caravan freeze protection valve, John Guest drain valve, Truma boiler maintenance.
RETURNS & REFUND POLICY
RETURNS & REFUND POLICY
Delivery Policy
South West Leisure Spares will dispatch your item within 1-3 working days, if a part purchased is out of stock you will be notified of the delay whilst we reorder.
Returns Policy
We understand that you may need to return an item to us. South West Leisure Spares offer a quick and easy returns process. Please be aware we can't process any return or exchange if you have not provided your invoice number.
Refund Policy
All parts have a 14 day full refund policy providing we have been notified before the item is sent back to us. If you are not 100% satisfied with your purchase, simply send it back and we'll refund the full cost of the item minus the shipping costs.
Please check your part for damages as soon as you receive it. All goods retuned must be in new condition without any damages unless stated otherwise and must be fit for resale.
Once we receive your item, we will inspect it and notify you that we have received your returned item. We will notify you on the status of your refund after inspecting the item.
Once approved, we will initiate a refund to your original method of payment.
Please Note: Goods returned must be sent signed for and insured by you against loss or damage. Only damaged parts will have a full refund and return postage paid for.
Your item must be returned in it’s original packaging.
Damages, shortages & incorrect items must be reported within 48 hours of you receiving order, otherwise no claim will be considered by us or the carrier. Special/bespoke orders cannot be cancelled or refunded once ordered, as these parts are being made to order and have to be paid for.
It is your responsibility to check the delivery has not been damaged in transit. If it is damaged please refuse delivery or make sure it is noted on confirmation of delivery before you sign. Please notify us within 48 hours or your claim will not be valid.
Please return any unwanted or damaged parts to:
South West Leisure Spares,
Unit 1 Southfields Enterprise Park,
Jordans Road,
Ilminster,
Somerset,
Reviews
Q&A
Truma Boiler Safety Drain Valve
Delivery Policy
South West Leisure Spares will dispatch your item within 1-3 working days, if a part purchased is out of stock you will be notified of the delay whilst we reorder.
Returns Policy
We understand that you may need to return an item to us. South West Leisure Spares offer a quick and easy returns process. Please be aware we can't process any return or exchange if you have not provided your invoice number.
Refund Policy
All parts have a 14 day full refund policy providing we have been notified before the item is sent back to us. If you are not 100% satisfied with your purchase, simply send it back and we'll refund the full cost of the item minus the shipping costs.
Please check your part for damages as soon as you receive it. All goods retuned must be in new condition without any damages unless stated otherwise and must be fit for resale.
Once we receive your item, we will inspect it and notify you that we have received your returned item. We will notify you on the status of your refund after inspecting the item.
Once approved, we will initiate a refund to your original method of payment.
Please Note: Goods returned must be sent signed for and insured by you against loss or damage. Only damaged parts will have a full refund and return postage paid for.
Your item must be returned in it’s original packaging.
Damages, shortages & incorrect items must be reported within 48 hours of you receiving order, otherwise no claim will be considered by us or the carrier. Special/bespoke orders cannot be cancelled or refunded once ordered, as these parts are being made to order and have to be paid for.
It is your responsibility to check the delivery has not been damaged in transit. If it is damaged please refuse delivery or make sure it is noted on confirmation of delivery before you sign. Please notify us within 48 hours or your claim will not be valid.
Please return any unwanted or damaged parts to:
South West Leisure Spares,
Unit 1 Southfields Enterprise Park,
Jordans Road,
Ilminster,
Somerset,