News
News
Why does gland packing blowout? 2010-11-03
We just experienced a gland packing blowout on an 8" 600# gate valve in a 600psi steam service. The valve had been closed for several years. As the operator was opening it, the packing material extrud
Actuated Valve Dimension: Face to Face 2010-11-03
Can more knowledgable persons please explain because I am not very familiar with details of valves and its dimensions.For pneumatic actuated valves, would the face to face dimension be the same as a m
Duo Check Valves. How Leak test it? 2010-11-03
We designing a bildge-ballast system for a ship River and selected valves duo check for suction lines (Low weigth). Crane Duo Check valves were select in ASTM A395 with metal seat and interior stain
Fast opening, high pressure valve 2010-11-03
I'm working on an exotic project where I need a fast opening, high pressure valve. I'm not an expert in valves, obviously as you can see from this question. The required specs are below, I've been t
Non-return (or check) valves process specification 2010-11-03
My problem is that the piping engineer asked me the following data for a number of non-return valves:- The min. and max. flowrates- The min. and max. operating pressures- The min. operating temperatur
3-way valve: mixing or diverting? 2010-11-02
When coosing a 3-way valve, how can we decide between mixing or diverting valves? What are the reasons to choose each one.
Balancing valve in heat exchanger arrangement 2010-11-02
In the image that i attached, there is a balancing valve, that is commonly used. I don't know well why this is used.For what i undestand, this is used to obtain in this circuit the same pressure drop
Relativly high speed/high pressure valve for steam 2010-11-02
My goal is to release pressurized steam at frequencies from 10Hz to 150Hz. The steam pressure used will not be over 100psi for this testing(due to a safety release valve).