Skip to product information
1 of 3

Flexible Reinforcements

500 x Carmo 03‑374 HF‑Weldable Pressure Relief Valve – G 3/4" Modular System Valve for Inflatables (ABS)

500 x Carmo 03‑374 HF‑Weldable Pressure Relief Valve – G 3/4" Modular System Valve for Inflatables (ABS)

Regular price £4,080.00 GBP
Regular price Sale price £4,080.00 GBP
Sale Sold out
Shipping calculated at checkout.

The Carmo 03‑374 Pressure Relief Valve is a durable, low‑profile ABS component engineered to deliver safe and reliable pressure control in inflatable products and technical textile applications. Designed to open automatically at a set pressure threshold, it protects structures against over‑inflation, temperature‑related expansion and unexpected pressure spikes—making it a trusted choice for buoys, rafts, maritime equipment, ballast systems and other inflatable assemblies exposed to changing environmental conditions.

As part of Carmo’s modular valve system, the 03‑374 valve fits directly into the standard 03‑601 HF/ultrasonic weldable threaded flange, enabling quick, secure installation. The system uses a G 3/4" threaded interface, ensuring strong compatibility with Carmo’s full range of modular components, including inflation valves and vacuum valves, to support versatile multi‑valve configurations.

Manufactured in Denmark using high‑precision injection moulding, this valve offers excellent dimensional accuracy, long‑term durability and consistent performance. Carmo’s production approach prioritises sustainability, ensuring high‑quality materials are used while minimising environmental impact.

When paired with the compatible weldable flange, the 03‑374 valve is suitable for HF welding to PVC and PUR‑based materials, providing dependable bonding and long‑lasting functionality in demanding marine, industrial and environmental applications.

Whether you are building inflatables, buoyancy systems or flexible tank solutions, the Carmo 03‑374 Pressure Relief Valve delivers a proven, industry‑standard level of safety, stability and performance.

This listing is for customers looking full box quantities, and offers exceptional value for manufacturers, OEMs and high‑volume production environments. By purchasing the full box quantity of 500 units, you benefit from Carmo’s best‑value bulk pricing, making this the most cost‑effective option for continuous production, inventory planning or large‑scale manufacturing projects. 

If you are looking for less than box quantity, please use this link HERE to order directly from our stocks in Lancashire.

LEAD TIME
When ordered, this dedicated bulk‑buy listing will be added to our next monthly Carmo order, placed on the 4th Wednesday of each month (close off at 12 noon). Once confirmed we expect to receive that from Carmo in around 10-14 days, at which time we will inspect, check and send on your order, using a next day delivery.

Quantity discounts

Please get in touch with the team via Live Chat, the contact form on the website, email - sales@flexr.co.uk or give us a call on 01282 478220 to discuss your requirements and our quantity price breaks.

Material Conversion Services

Across our range of PVC and Polypropylene we offer an in house conversions service - including panelling, guillotine trimming and slitting.

Get in touch to find out more.

Shipping & Returns

Carriage charges are applied at checkout.

Samples

For samples of any of our materials - please get in touch with the team. We are available via Live Chat, email - sales@flexr.co.uk or on the phone 01282 478230.

View full details
  • DELIVERY

    Delivery is calculated at checkout, for stock items we aim to dispatch within 1-2 days on a next day service as standard.

  • GET IN TOUCH

    Any queries and you can get in touch with us via the Live Chat function, on email via sales@flexr.co.uk or call us on 01282 478220.