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Oil and natural gas are enormous industries in the energy marketplace and play an influential position in the international economy as the world’s primary fuel source. These were strategies and operations involving the search for potential deposits of crude oil and natural gas underground or subsea, the drilling of wells, and eventually drilling and working the wells that recover and produce the crude oil and raw natural gas to the surface.
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BCST your Oil &Gas Valve Supplier in China
The oil and gas sector is an international powerhouse that uses hundreds of thousands of employees globally and produces hundreds of billions of dollars globally every year. However, the approaches and systems involved in generating and dispensing oil and gas are incredibly complex, capital-intensive, and require modern-day technology.
Keeping the flow of oil and gas in pipelines is a huge venture and calls for numerous reliable pieces of equipment. Oil and gas valves are one of these vital components. The oil and gas enterprise couldn’t refine crude oil, refined gas, natural gas, and different substances without gas valves.
BCST your Oil& Gas Valve Solution in China
A oil & gas valve is a tool used to regulate the flow of oil and gas. Opening or closing an aperture controls the range of liquids and gases. The valve controls the flow of fluids by stopping and starting, adjusting quantities, controlling direction, adjusting pressure, or releasing pressure. There are numerous varieties of oil and gas valves because of the unique environments in which they’re used.
Oil & Gas Control Valve
Oil and Gas control valve is often chosen, if pressure control is required. It is often used for opening and closing operations. The valve plug is raised and lowered vertically when required. They generally tend to create a larger and more noticeable pressure drop due to the S-shaped passage. They are a great option for rate regulation and limiting capabilities.
Globe Control Valve
Self Regulating Control Valve
Rotary Control Valve
Oil & Gas Ball Valve
Oil & gas ball valves provide pipelines with quick shut-offs when tight sealing is required. They are suitable for operation in the fully open or fully closed position. This type of valve is available in various styles. These are easy to fix, provide a stable hold and offer quick closures.
Trunnion Mounted Ball Valve
Float Ball Valve
V-port Ball Valve
Oil & Gas Butterfly Valve
These oil &gas valves are easy in their construction, is lightweight, and compact. A disk-like element is used to alter the flow. As a result, they are able to deal with high-pressure pipelines and effortlessly flow materials. When closed, they tightly close. These are used in large diameter pipes. Because gas valves are available in many different types and offer numerous functionalities, choosing the best one can be challenging.
Triple Offset Butterfly Valve
Metal Seal Butterfly valve
Manual Butterfly Valve
Oil & Gas Gate Valve
The gate valve is the most commonly used valve in the oil and gas industry. If the flow needs to be controlled and sustained, the gate valve is an excellent choice. When the actuator totally opens the valve, the channel is free, allowing liquid media to flow more easily. Although not an ideal valve for throttling, there is no noticeable pressure drop when using this valve.
Electric Gate Valve
Pneumatic Gate Valve
Manual Gate Valve
BCST your BEST Supplier for Control Valve
BCST has advanced oil & gas valves with its very own traits that meet the maximum vital primary concepts of process control in oil & gas industry . Our merchandise is CE, SIL2 and RoHS approved. BCST is one of the main dependable and strong control valves producers in China. If you`re trying to find a skilled producer for your subsequent project, with robust technical heritage, expert team, and budget-pleasant merchandise, BCST is your maximum appropriate choice.
BCST is your expert associate for managing oil & gas valve solutions. Welcome to go to our factory.
BCST Oil &Gas Valve Quality Control
- Technical software caculation
- Technical team meeting
- CAD drawing confirmation
Assembly
- Installation
- Calibration
- Chemical Analysis
- Mechanical Propery
- dimension Checks
- Visual Checks
- Non-destruction Examination
Hydrostatic Test
- Shell test
- Sealing test
- Leakage test
- Air test
- Function test
- CNC machining
- Visual checks
- Dimensional checks
- Liquid penetration test
Outlook Treatment
- Surface Polish
- Painting
- Visual inspection
- Thickness checks
- Visual checks
- Liquid penetration
- Test
- Hardness test
- Lapping
- Dimensional checks
Packing
- Marking
- Exported wooden box
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Why Purchase Control Valve From BCST
BCST control valve has composed of a pneumatic diaphragm actuator or piston actuator; there are three types of the valve seat.
- One is P style low flow resistance straight single-seat valve,
- Another is low resistance sleeve valve
- Thirdy, N-type low resistance double-seat valve.
Among them, single-seat control valves are the most popular.
Whether it is a low resistance single-seat valve or sleeve valve, they have a simple and compact structure and high flow coefficient.
Control valve bodies adopt straight single-seat and the upper guiding structure without bottom cover, and the feature makes control valve small volume, lightweight, fluent runner and high efficient.
The connection of body and pipe adopts male and female flange, which adapts different nominal diameters. The control valve body is classified into ordinary and middle temperatures for different working temperatures. Plug type of single-seat valve is on oriented piston valve. The plug type of sleeve valve is the cylinder, which is guided by the inner cylinder and a particular characteristic hole on the sleeve after precision finishing.
BCST control valves have accurate flow characteristics and conform to national regulation IEC standard and slope deviation requirements.
The standard filling material is PTFE, but flexible graphite can also be used according to field usage.
Type Method | Pneumatic diaphragm actuator | Electric actuator |
JCH23～JCH56 | 3810L series | |
Multi-spring type | Intelligent integrated type | |
Usage | Regulating type, ON-OFF type | Regulating |
Air supply pressure or Power supply voltage | Air supply pressure (Spring range) 140（20～100）Kpa G 240 (40～200) Kpa G 280 (80～240) Kpa G |
Power: AC 200V±10% 50Hz Or Power: AC 380V±10% 50Hz○1 |
Connector | Air pipe connector: RC1/4 | Nomal type: cable inlet 2-PF(G1/2〞) Explosive proof: Protection jacket PF(G3/4〞) |
Direct action | Pressure increase, stem descend, valve close. | Input signal increase, stem descend, valve close. |
Reaction | Pressure increase, stem ascend, valve open. | Input signal increase, stem ascend, valve open. |
Input signal | 40～20mA.DC（with positioner） | Input/output4～20mA.DC |
Lag | ≤1%FS（with positioner） | ≤0.8%FS |
Linear type | 2%FS（with positioner） | ≤+1%FS |
Environmental temperature |
-10℃～+70℃ | Standard type: -10℃～+60℃ With space heater○1 : -35℃～+60℃ Explosive proof: -10℃～+40℃ |
Surface coating | Green, acrylic acid polyurethane coating | Blue, acrylic acid polyurethane coating |
Accessories | E/P, P/P valve positioner, filter regulator, valve converter, solenoid valve, limited switch | Space hearter (normal type) |
Flow characteristic | Linear, percentage, quick open | ||
Allowable range | 50: 1 (CV<6.3 30: 1) | ||
Rated Cv value | Percentage CV1.6~630 ，linear CV1.8~690 | ||
Allowable leakage | Metal seal: IV grade（0.01% rated capacity） Soft seal: VI grade（foam grade） Leakage standard: GB/T 4213 | ||
Performance |
| Pneumatic | Electric |
Intrinsic error % | ±1.5 | ±1.0 | |
Return difference, % | ≤1.5 | ≤1.0 | |
Dead zone, % | ≤0.6 | ≤1.0 | |
Difference from beginning to end point, % | ±2.5 | ±2.5 | |
Rated travel difference, % | ≤2.5 | ||
Oil & Gas Valve -FAQ
WHAT IS A VALVE?
The different types of valves used in the petrochemical industry are suitable for any of the following applications:
- Starts/stops the flowof fluid (hydrocarbons, oil, and gas, steam, water, acids) through the pipeline (example: gate valve, ball valve, butterfly valve, knife gate valve, or plug valve).
- Modulate the flowof fluid through the pipeline.
- Check fluid flow.
- Change the directionof flow.
- Regulate the pressureof a process (regulator).
- Protecta piping system or device (pump, motor, tank) against overpressure or back pressure (non-return valve).
- Filters debrisflowing through a pipeline to protect equipment that could be damaged by solid parts (Y-strainer and basket).
Valve Type | General Applications |
Actuation |
Remarks |
Globe Valve |
Shut-off/regulation of liquid/gas flow. Suitable for steam and condensate. |
Usually manual, but may be: Electric Manual Hydraulic Pneumatic | Usually applied to higher pressure or high volume systems, due to cost. Incompatible with viscous or contaminated fluids. |
Piston Valve | Used fully open or fully closed for on/off control of steam, gas, and other fluid services. Typically used on fluids that cause excessive seat wear. |
Usually manual, but may be: Electric Manual Hydraulic |
Usually used where the valve body is to be permanently installed and maintenance needs to be minimized. |
Gate Valve |
Normally used fully open or fully closed for on/off control of water, oil, gas, steam, and other fluids. |
Usually manual, but may be: Electric Manual Hydraulic | Not recommended as a throttle valve. The solid wedge door is vibration and jam-free. Steam systems use parallel slide valves. |
Butterfly Valve |
Shutoff and regulation in larger pipelines in waterworks, process industries, HPI, and power generation. |
Handwheel Electric Motor Pneumatic Actuator Hydraulic Actuator Air Motor | Relatively simple construction. It can be produced in very large formats. The essential original design for the vapor system. Typically used on a liquid system. |
Ball Valve | Wide range of applications in all sizes including HPI. | Handwheel Electric Motor Pneumatic Actuator Hydraulic Actuator | Can handle all types of fluids. Limited maximum pressure rating. |
A valve is made by assembling several mechanical parts, the most important of which are the body, the gasket (the combination of replaceable wet parts), the stem, the cover and a drive mechanism.
Valves with small-bore sizes (generally 2 inches) or that require high resistance to pressure and temperature they are made with forged steel bodies; commercial valves over 2 inches in diameter have cast body materials.
CONTROL VALVES INSTALLATION
Continually expand the discharge steam line piping by at least one pipe diameter. Extending the discharge piping by at least two or three pipe diameters is not uncommon. Note that expanding the tubing reduces valve outlet velocities, thereby extending valve life. The valve manufacturer will supply the appropriate pipe size after the control valve. The pipe size should match the heat transfer inlet connection. Any heat transfer should be at least ten pipe diameters away from the steam control valve. In pressure-reducing applications, at least 20 horizontal pipe diameters should be left before changing flow direction.
The control valve must permanently be installed in a horizontal vapor line, never vertically.
Proper valve selection is more important under low flow operating conditions than under assumed high flow operating conditions.
Bypass valves must be used in the installation of the control valve. The bypass valve allows the personnel of the industrial facility to operate the process without the control valve if valve failure or maintenance is reactive, preventive, and predictive. Installing pressure gauges before and after the steam control valve allows for real-time line diagnostics. The importance of proper installation cannot be exaggerated. In many cases, the source of a troublesome startup can be traced to a control valve that is not correctly installed. It is strongly recommended that personnel with an instrumentation background be used to supervise the installation and setup of control valves.
BCST Group, founded in 2000, specializes in the research, development, and production of various valves and process instruments. BCST can assist your business if you require excellent valves. The range of our products includes low-cost cast models for easy installation to high-end units capable of withstanding both high temperatures and high pressures.
BCST can provide you with the tools you need to revolutionize your business processes. Reach out to one of our experienced engineering teams today, and we’ll find custom-tailored solutions that meet your needs.