Description of Western Enterprises QDB30 Regulator Valves
Brass construction provides long service life. Non-interchangeable oxygen and fuel gas connectors. Instant closure on reverse flow check valves. Spring-loaded locking mechanism responds to fingertip action and achieves a gas-tight connection. Double seal socket connection on second seal.
These Industrial and Scientific valves can't deliver on their promise. I bought one of these for a job I had to do but it was nothing but trouble. The valve is poorly constructed and kept leaking when in use, causing a major headache during a busy workday. The only pro was the device's compact size, but that didn't make up for its overall ineffectiveness. I wouldn't recommend this product to anyone.
Pros
Easy to install and use
Cons
Requires frequent maintenance to ensure proper functioning