Home / Blog / Piping Design Engineer Interview Questions Part-9 (Valves-III)

Piping Design Engineer Interview Questions Part-9 (Valves-III)

sp3d course

21. Where stop check valve is used?
In stem generation by multiple boilers, where a valve is inserted between each boiler and the main steam header. It can be optionally closed automatically or normally.
22. Where diaphragm valves are used?
Used for low pressure corrosive services as shut off valves.
23. What is barstock valve?
Any valve having a body machined from solid metal (barstock). Usually needle or globe type.
24. What is BIBB valve?
A small valve with turned down end, like a faucet.
25. What is bleed valve?
Small valve provided for drawing off liquid.

26. What is blowdown valve?
Refers to a plug type disc globe valve used for removing sludge and sedimentary matter from the bottom of boiler drums, vessels, driplegs etc.
27. What is breather valve?
A special self acting valve installed on storage tanks etc to release vapor or gas on slight increase of internal pressure (in the region of 1/2 to 3 ounces per square inch).
28. What is drip valve?
A drain valve fitted to the bottom of a driplet to permit blowdown.
29. What is flap valve?
A non return valve having a hinged disc or rubber or leather flap used for low pressure lines.
30. What is hose valve?
A gate or globe valve having one of its ends externally threaded to one of the hose thread standards in use in the USA. These valves are used for vehicular and firewater connections.

About Oilandgasclub.com

About Oilandgasclub

Oilandgasclub.com is an international oil and gas (online & offline) conference technical training org from India. Oilandgasclub.com 3000+ professionals trained 150,000 hours of classes delivered 500+ expert trainers available and 3600+ respondents 30+ countries 80+ team. Blogs about technical tips at this blog. Contact or more about customized technical training from this page

70+ courses    7 venues    5 categories


[mc4wp_form id=”3810″]



  1. best information,
    how download this informations

  2. Nice information

  3. This blog is so impressive ,can you plz explain about the function of BIBB valve ?

Leave a Reply

Your email address will not be published.

Free WordPress Themes - Download High-quality Templates