Professional Petrochemical Valve Manufacturer
The petrochemical industry has advanced by treating oil and gas, including the value of low-Value products, which have limited use in the fuel industry. As a result, the world now produces an outstanding variety of valuable products including plastics, artificial rubber, solvents, fertilizers, pharmaceuticals, additives, explosives, and adhesives.
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BCST your Expert Petrochemicals Valve Supplier in China
Petrochemical merchandise is utilized in cars, packaging, family goods, scientific equipment, paints, clothing, and constructing material, to name only a few. These are important applications in almost all regions of our society.
BCST your One-Stop Petrochemical Valve Solution in China
Petrochemical Control Valve
Control valves play a vital role in the automatic control of modern oil and chemical plants. The production of these plants depends on the correct distribution and control of the flowing medium. Whether it is the exchange of capacity, the reduction of pressure, or the simple filling of a vessel, these controls require certain final control elements to be carried out. The petrochemical control valve belongs to the family of control valves. Its primary function is to regulate the pressure, flow, temperature, and other medium parameters. It is the last control element in the process cycle. In addition, the petrochemical control valve plays the role of variable resistance in the pipeline.

Petrochemical Control Valve

Petrochemcial Rotary Control Valve

Petrochemical Self Regulating Control Valve
Petrochemicals Ball Valve
As a component used to achieve pipeline system access and flow control, ball valves have been used extensively in many fields, such as the petroleum and chemical industries.
The petrochemical ball valve is a valve that can be opened and closed quickly. It has a transverse opening in the spool so that the liquid can pass straight through. It results in a small pressure drop. It is suitable for suspensions or viscous fluids. The petrochemical ball valve spool can also be made into a three-way or four-way valve with an upward or downward shaped passage. It has a regular shape and is easy to make into a jacketed valve for insulation.
Among them, the petrochemical hard seal ball valve adopts a special surface hardening treatment. As a result, it also avoids the problem of easy wear and tears or frequent replacement of the valve under severe conditions.

Petrochemical Float Ball Valve

Petrochemical Trunnion Mounted Ball Valve

Petrochemical V-port Ball Valve
Petrochemical Butterfly Valve
The petrochemical butterfly valve has a simple structure. It has a small size and weighs very little. The petrochemical butterfly valve is made up of only a few parts. Moreover, it can be opened and closed quickly by simply rotating it 90°. It is simple to operate and, at the same time, has good fluid control characteristics. The application of petrochemical butterfly valves saves investment costs and provides stable performance.
There are two types of petrochemical butterfly valves in common use: the wafer type butterfly valve and the flange type butterfly valve. The petrochemical butterfly valve is suitable for installation on large diameter pipelines.

Petrochemical Triple oOffset Butterfly Valve

Petrochemical Metal Seal Butterfly Valve

Petrochemical Butterfly Valve
Petrochemicals Gate Valve
The petrochemical gate valve is the most used in chemical production installations. Petrochemical gate valves are suitable for media containing granular solids and high viscosity. The petrochemical gate valve has a smaller installation size compared with the same caliber globe valve. In addition, it has good sealing performance, small fluid resistance, and a certain degree of adjustment performance.
When the petrochemical gate valve is fully open, its resistance coefficient is almost the smallest among all valves. And it applies to a wide range of sizes and pressure and temperature ranges.

Two Way Control Valve

PTFE Lined Control Valve

Rotary Control Valve
BCST your BEST Supplier for Petrochemical Valve
As mentioned, the petrochemical industry is massive, and its applications aren’t simply confined to oil and fuel line production. Petrochemical plants are responsible for the production, storage, and transportation of many substances.
Essentially, the valves are mechanical gadgets used in piping applications. They control, regulate, open, and close the flow and pressure of material liquids. Therefore, valves are vital, specifically when running in crucial chemical materials and extreme pressure and temperature, including in the petrochemical industry.

BCST Petrochemical 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 Petrochemical 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 |