Diverse Welding Services uses a range of acid-based chemicals to passivate our products with static, mechanical, re-circulated flushing and pickling techniques to ensure our products are not susceptible to corrosion.
We favour CitriSurf’s citric acid solution because it is more environmentally friendly and less harmful than more traditional passivation solutions and it can be used on austenitic stainless steel, hastelloy, duplex and other high alloy material equipment.
Read more about CitriSurf here
We perform hydrostatic, pneumatic, high and low pressure testing using the National Association of Testing Authorities’ calibrated equipment.
We test hydraulic pressure from 0-15,000psi and atmospheric pressure to 30,000kPa, on site or in our workshop, using our skid mounted transportable testing equipment.
Industry Standards and Documentation
Our pressure testing and passivation is done to Australian Industry Standards including ASME A967, AS380, ASTM A380
Diverse Welding Services has developed over 150 weld procedures and our documentation processes are industry-leading. Our work can be documented in detail to any standards our clients require.
Contact Diverse Welding Services to discuss passivation and pressure testing in further detail.