What is the difference between API 607 4th and 5th edition? We would like to do the fire test on the new valve.

How to size Drip Collars for Cryogenic Valves. It has not been my experience that they are necessary: The atmospheric condensation forms on the valve as an ice ball.

Essentially, it was a key lock system to ensure that a particular sequence (in this case, valves) was followed. The concept was that a 'key' would be inserted in the first valve box which would allow

To buy a gate valve with high rating (1500LB) and our client has bben commented us taht this valve should have following condition:

The crews are newly formed and do not have alot of experience. Just recently we have found 4 broken 24-inch gate valves.

Fluid will be bearing solids. Discharge is to atnosphere.A spring loaded pinch valve would do but Red Valve limit their pressure to 150psi.

To state whether a certain valve meets NFPA 85 criteria. While we are busy ordering the standard, does anybody here know what the requirement would be for a 10" butterfly valve?

The original API 622 draft was intended to be a test for the packing, whereas ISO 15848 is for the whole valve.