Control Valves for Oil and Gas Production export company - City Cat Oil Parts Supply
Control Valves

Control valves are used to control the flow rate, pressure or temperature in the process of oil and gas industry.

- Pneumatic globe type control valve
- Pressure reducing valve
- Electric globe type control valve

Butterfly Valves for Oil and Gas Production export company - City Cat Oil Parts Supply
Butterfly Valves

- Centric butterfly valves with soft seated, it used to cut off the flow like air, water, oil and other fluids. This type of butterfly valves have extended life cycles and lower cost of competing valves.
- High-performance butterfly valves are used to isolate and modulate a variety of media.
- Triple offset butterfly valves with blowout-proof stem and metal-to-metal seat, zero leakage performance. To make sure it suitables for extreme pressures and temperatures.

Ball Valves for Oil and Gas Production export company - City Cat Oil Parts Supply
Ball Valves

Ball valves are made out of several metallics whilst the seats are made from soft materials like Teflon. The combination of materials means the ball valve can operate at temperatures as low as -200 deg C and as high as 500 deg C.

Mainly used for air, gases and liquids, ball valves are quick to turn on and off and have a tight sealing with low torque. The only downside to these valves are the lack of throttling properties available.

- Trunnion-mounted ball valves
- Floating ball valves
- Full-welded ball valves

Check Valves for Oil and Gas Production export company - City Cat Oil Parts Supply
Check Valves

Check valves are used to protect mechanical equipment in a piping system by preventing reversal of flow by the fluid. This is particularly important in the case of pumps and compressors, where back flow could damage the internals of the equipment and cause an unnecessary shutdown of the system and in severe cases the complete plant.

Gate Valves for Oil and Gas Production export company - City Cat Oil Parts Supply
Gate Valves

Gate valves are primarily designed to start or stop a flow when a straight line flow of fluid and minimum flow restriction are needed. In service, these valves are pretty much kept either fully open, or fully closed.

When turned open, the disc of the gate is completely removed allowing contents to pass. Although this gives the valve good shut-off properties and is bidirectional, they cannot be quickly opened or closed and are sensitive to vibration when open.

Globe Valves for Oil and Gas Production export company - City Cat Oil Parts Supply
Globe Valves

Globe valves are typically used for cooling water systems, transporting fuel oil and turbine lube oil systems, a globe valve is a linear motion valve used to stop, start and regulate flow.

Conventionally used for isolation and throttling services, the globe has become the world's most common types of valves. With a good shut off ability, available in tee, wye and angle patterns and easy to machine the valve seats - its easy to see why they are so popular.

The slight disadvantages of the globe are that they perform unfavourably when high pressure drops, and require greater force or throttling flow under the seat to shut off valve.

Pressure Seal Valves for Oil and Gas Production export company - City Cat Oil Parts Supply
Pressure Seal Valves

Pressure seal valves are used for high pressure service, The unique feature about the pressure seal 'bonnet' is that the body's joints seals improve as the internal pressure increases. Pressure seal valves are typically used in excess of 170 bar.

Cryogenic Valves for Oil and Gas Production export company - City Cat Oil Parts Supply
Cryogenic Valves

Cryogenic valves design suitable for integrity pressure protection and emergency shutdowns in temperatures as low as ‒196° C.

Safety Valves for Oil and Gas Production export company - City Cat Oil Parts Supply
Safety Valves

A safety valve is designed to open and relieve excess pressure from vessels or equipment and to reclose and prevent the further release of fluid after normal conditions have been restored.

A safety valve is a valve that acts as a fail-safe. An example of safety valve is a pressure relief valve, which automatically releases a substance from a boiler, pressure vessel, or other system, when the pressure or temperature exceeds preset limits.

Brass Valves for Oil and Gas Production export company - City Cat Oil Parts Supply
Brass Valves

Brass valves are Highly corrosion-resistant, Very low (to no) levels of lead present, exceptionally durable, Malleable.

History- Dates back to ~500 BC, Melting Point : 1710F (930C), Color: Muted Gold , Composition: Copper, Zinc, Benefits: Better Corrosion Resistance than Bronze, Ideal for Drinking Water, Very Malleable, Drawbacks: Somewhat Expensive, Can Break Down when Exposed to High Levels of Chlorine.

Needle Valves for Oil and Gas Production export company - City Cat Oil Parts Supply
Needle Valves

Needle valves, sometimes referred to as plunger valves, are regulating valves and enable engineers to finely control and regulate water flow and pressure.Needle valves have a long, tapered, needle-like point at the end of the valve stem.

An instrument needle valve uses a tapered pin to gradually open a space for fine control of flow. The flow can be controlled and regulated with the use of a spindle. A needle valve has a relatively small orifice with a long, tapered seat, and a needle-shaped plunger on the end of a screw, which exactly fits the seat.

Solenoid Valves for Oil and Gas Production export company - City Cat Oil Parts Supply
Solenoid Valves

Solenoid valves are used to close, open, dose, distribute or mix the flow of gas or liquid in a pipe. The specific purpose of a solenoid valve is expressed by its circuit function.

Solenoid valves are control units which, when electrically energized or de-energized, either shut off or allow fluid flow. The actuator takes the form of an electromagnet. When energized, a magnetic field builds up which pulls a plunger or pivoted armature against the action of a spring.

Plug Valves for Oil and Gas Production export company - City Cat Oil Parts Supply
Plug Valves

Plug valves are valves with cylindrical or conically tapered "plugs" which can be rotated inside the valve body to control flow through the valve.

The plugs in plug valves have one or more hollow passageways going sideways through the plug, so that fluid can flow through the plug when the valve is open. This type of valve is especially useful for high pressure scenarios.

Piston Valves for Oil and Gas Production export company - City Cat Oil Parts Supply
Piston Valves

A piston valve is a device used to control the motion of a fluid along a tube or pipe by means of the linear motion of a piston within a chamber or cylinder.

Examples of piston valves are:- The valves used in many stationary steam engines and steam locomotives. In an engine, its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod. In a pump, the function is reversed and force is transferred from the crankshaft to the piston for the purpose of compressing or ejecting the fluid in the cylinder.

Knife Gate Valves for Oil and Gas Production export company - City Cat Oil Parts Supply
Knife Gate Valves

Knife gate valves are designed mainly for on-off and isolation services in systems with high content of suspended solids. Knife gate valves are designed to work in some of the most harsh environments, typically having a sharpened blade to cut through heavy liquids.

Knife gate valves should only be used for applications requiring a completely open or completely closed position and should not be used to regulate flow unless they are designed for it. Whenever fluid is forced against a partially closed gate, there will be a vibration, gradually eroding the disc and seat. In addition, the knife gate valves are designed to slowly open and close to safeguard against the impacts of water hammer.