How to choose a gate valve? [A Hawle checklist]

01

Before making any purchases, you can confirm if a manufacturer’s gate valve meets some basic quality criteria essential to long service lifetimes:

Confirm the gate valve meets or exceeds code and standard requirements by checking:

• Is the gate valve safe for potable water? This includes both certification approval from DVGW, ÖVGW, KIWA, WRAS, or your country’s certifying agency, as well as using safe materials as outlined by the 4MS Initiative.
   
• Is the gate valve compliant with DIN EN1074-2 endurance testing requirements?
   
• Does the gate valve have both a GSK certification and a GSK production certification? Both are necessary to ensure product compliance.

Does the manufacturer have a proven track record of longevity? Hawle for example, still has gate valves functioning after over 50 years of underground service?