Valve Identification

Valve Identification
on www.offshorediver.com

To print this page, select File | Print on your browser.
This section will be a continuing effort as more photos and drawings turn up.

Check Valves - Drawings


Swing check valve	Bolted top piston check valve


Wafer check valve - installs between flanges	Split body piston check valve


Nutron fully opening check valve	WKM fully opening check valve


Wheatley piston check valve

Check Valves - Photos


A selection of Wheatley-Dresser check valves	Crown-Judd swing check valve


Crown-Judd check valve with handwheel	Ring-O Valve swing check - 10"


Swing type check valve with counter weight. Counter weight assists either opening or closing, or is used when is valve is used in a vertical flow-down position.	Closeup of clapper lever on a swing check valve. Shows locking pin for locking valve in either open or closed position. Normal operating mode is unlocked. This lever will often be missing, however a crescent wrench will work fine.


Two Crown-Judd split body piston check valves in front, Crown-Judd swing check valve behind.	Crown-Judd reduced port, non-piggable wafer check valve.


Wheatley swing check valve

Generally speaking, this is about what check valves look like when you encounter them on bottom. Close up of dust cover to right.

Ball Valves - Drawings


Welded body ball valve	Top entry ball valve


Bolted body ball valve	Rising stem ball valve


Nutron Model TT bolted body ball valve

Note: Most subsea ball valves have a worm gear & secondary stem which comes horizontally off the side of the valve near the top. This stem has a dust cap which must be removed before the valve stem can be turned. It is rare to encounter a hand wheel on bottom. You will occasionally see ball valves installed sideways; this is most often the case when the valve does have a hand wheel.

Ball Valves - Photos


Top entry ball valves - 12" & 10"	Bolted body ball valve - stainless steel 10"


Valve position indicator showing half open on valve to the right.	Bolted body ball valve - 6" Valve handle is tied up on same side as dust cap on reduction gear housing.

Ring-O Valve
Top entry ball valve - 24"

Gate Valves - Drawings


Rising Stem Gate Valve	Rising Stem Gate Valve

Gate Valves - Photos

Demco
Gate valve - 4" high pressure
Demco

Gate valves
Ring-O Valve

Gate valve
Transmark

**M a n u f a c t u r e r ' s W e b s i t e s**
CHECK VALVES Wheatley Goodwin Vogt Edward Crane Shipham PetrolValve	BALL VALVES WKM Demco Cooper Cameron Wheatley Kuka Sigma Delta Shipham PetrolValve	GATE VALVES Crane Edward Vogt Ramondi WKM Foster Cooper Cameron Delta Shipham PetrolValve

These manufacturers supply the world, not just the Gulf of Mexico. In the Gulf,
Cooper Cameron is the largest supplier of valves to the petroleum industry.

Deepwater Subsea Ball Valves - Cooper Cameron PDF Document

Tom Wheatley Valves - Cooper Cameron PDF Document

Subsea Assemblies - SSA's

Unknown contributor

S Terry photo