All,
I am just looking through a document with break out torque calculation for a ball valve and was wondering if anyone out there could explain these calculation:
Torque due to piston effect and torque du to spring load; see attached file for calculations...
The sebaceous glands are microscopic glands in the skin that secrete an oily/waxy matter, called sebum, to lubricate and waterproof the skin and hair of mammals. Thomas Savery used tallow (sebum) and oil to seal and lubricate the piston in his steam engine. Graphite packings seal and lubricate...
Hi,
Wikipedia: GLAND
Etymology
19th century. Etymology unknown.
Noun
gland (plural glands)
(mechanical) a compressable cylindrical case and its contents around a shaft where it passes through a barrier, intended to prevent the passage of a fluid past the barrier. Examples:
a. used around a...