Text Box: Full Safety Relief Valve Catalogue 
Stainless Steel
Cast Carbon Steel 
Screwed & Flanged Models are available.
All on short delivery times from factory.
EN, API & ASME valves including vacuum breakers & vents.

API -  Series Safety Relief Valves

Full range of API series valves available on short delivery times. Forget waiting 12-16 weeks as these can be supplied in half that time.


Vacuum Vents  for many industrial applications, these are heavily constructed units, typically in 316 stainless steels with PTFE or Viton seats for chemical applications. Can also be supplied in cast Carbon Steels & Aluminium.

Text Box: Tosaca
Tosaca specialise in the design and manufacture of safety relief valves, bursting discs and breather & safety valves. In accordance with EN, API, ASME and other standards. Fast delivery times are achieved  as castings are kept in stock for final machining and assembly.

Click on catalogues below to download in PDF

ABN 66 223 443 319

07 3274 5539


Text Box: osvalve@osvalve.com.au





Office  07 3274 5858


John 0434 589 656

Mark 0432 206 109

Trent 0432 146 931

Rob 0478 715 805

Text Box: Unit 1 / 27 Ada Street
Coopers Plains, Qld  4108
Text Box: Download
Product Guide

One Source Valves