Orbits Flashcards
What unique feature does the orbit valve have related to its stem?
It features a rising stem with a quarter turn.
What is the primary function of this valve?
Engineered for critical on/off isolation.
In which industries is this valve typically used?
Gas Processing, LNG & Petrochemical Plants, Refineries, and Oil and Gas Production.
What specific application is this valve engineered for?
Critical on/off isolation.
what is are on and off isolation applications?
On/off isolation applications refer to the use of valves or other devices to completely stop (off) or allow (on) the flow of a fluid (such as gas, oil, or chemicals) within a pipeline or system. These applications are critical in various industries to ensure safety, control processes, and manage the flow of substances.
Common Industries for On/Off Isolation Applications:
Gas Processing: Managing the flow of natural gas during processing and distribution.
LNG (Liquefied Natural Gas): Controlling the flow of LNG during liquefaction, storage, and regasification.
Petrochemical Plants: Handling the flow of chemicals during production and processing.
Refineries: Isolating sections of the refinery to manage the flow of crude oil and its derivatives.
Oil and Gas Production: Managing the flow of oil and gas from wells and through pipelines.
define the feature of Mechanical sealing of the orbit valve
tight reliable shut off but also independent of pressure (as in doesn’t need pressure to help cause a seal (it’s 100% mechanical).
define friction free feature of the orbit valve
Eliminates rubbing (maybe clarify this also means long life/lots of strokes as reduces wear.
define for Resilient Seat feature of the orbit valve
Compensates for Thermal Changes - Redundant Reliable Sealing
What is provided on piston actuated valves to assure smooth operation and prevent valve damage?
a gas over oil tank.
How should the valve be oriented during installation to handle higher pressure?
Orient the valve so that the preferred pressure end will be toward the higher pressure when the valve is closed.
How often should a valve be lubricated if it is operated infrequently (once a day or less)?
quarterly
How often should a valve be lubricated if it is operated more than 10 times a day
Every 1000 cycles
How often should a valve be lubricated if used in corrosive or severe services and operated more than 10 times a day?
every 500 cycles
What is the purpose of lubrication in ORBIT valves, and what is the exception?
Lubrication in ORBIT valves is used only to reduce friction and wear on moving parts. The exception is the Grease Seal model, which utilizes grease as a secondary sealant.
