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Pneumatic Valve Actuator

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Pneumatic Valve Actuator

What is important to you when you buy pneumatic actuators?

Joyous pneumatic actuators are designed for use in quarter turn applications and tested to the one million operations. Actuators areavailable double acting and spring return models. It’s meet international lS05211 standards for easy valve mounting and replacement visual positionindicator will monitor the vave open and closed position.

The quaity of our pneumatic actuators provide ong and safe performance for your valve controlwe are here for your valve automation.

● Movement: Standard adjustable 90°±%
● Body:Hard anodized extruded aluminium alloy and stainless steel
● Actuator Types: Double acting pneumatic actuators and Spring return (Single acting) Pneumatic actuator
● Valve Options: Pneumatic actuator ball valve , Pneumatic actuator butterfly valve, Pneumatic angle seat valve, Pneumatic gate valve or Pneumatic globe valve
● Actuator Options: AT series rack and pinion pneumatic actuators, Scotch yoke pneumatic actuators, Linear pneumatic actuator and Hydraulic pneumatic actuators.
● Springs:High tensile spring sets of alloy steel
● Piston Shaft:Nickel plated alloy steel reduces friction
● End Caps:Polyester coated die cast aluminium
● Optional accessories: Solenoid valves, Limit switch box, Valve positioner or Air filter regulator
● Advantage: Our pneumatic actuators products are not only price competitive but also perform as well as or better than more expensive products.
● Quality: Our each pneumatic actuator is tested on the test bench.
● Additional: if your have any requirements about our pneumatic actuators, please welcome to write mail to us JESSIE@WZJIUYUAN.COM for getting more information and service from us.

Application

Our products are widely used in petroleum, chemical industry, energy, pharmaceutical and other fields, providing customers with comprehensive technical support and high-quality after-sales service.

Chemical Industry
Chemical Industry
Construction Project
Construction Project
Food Industry
Food Industry
Heavy Industry
Heavy Industry
Water Treatment
Water Treatment
Pharmaceutical Industry
Pharmaceutical Industry

Various types of control valves are available for different applications. Here's a breakdown of the most common types and their typical uses:

1. Globe Valves: These valves are ideal for accurately controlling the flow and pressure of liquids and gases, commonly found in HVAC systems, chemical plants, and water treatment facilities.

2. Butterfly Valves: Widely used for regulating flow or shutting off large-diameter pipelines carrying gases, liquids, or slurries. They’re prevalent in industries like chemical processing, pharmaceuticals, and food production.

3. Ball Valves: Employed for flow control across industries such as oil and gas, power generation, and wastewater treatment. They excel in applications requiring tight sealing.

4. Diaphragm Valves: Precisely control flow and pressure, particularly in environments with corrosive or abrasive fluids. Commonly seen in pharmaceuticals, food processing, and chemical plants.

5. Pinch Valves: Designed for handling slurries, fluids with solids, and other abrasive materials. They’re utilized in mining operations, chemical processing plants, and wastewater treatment facilities.

6. Needle Valves: Used for fine-tuning flow rates in low-flow situations, especially prevalent in chemical processing, petrochemicals, and pharmaceutical industries.

Cast Material and its Correspond Service Condition

Here are the material considerations for control valves, intended for the reference of customers, engineers, and end-users. We must prioritize our existing applications, as well as the selection and sizing process, drawing upon our professional industry expertise.

NameMaterial GradeService Condition
High-temperature Carbon SteelASTM A216 Grade WCBNon-corrosive fluids such as water, oil, and gases at temperatures range -20°F (-30°C) and +800°F (+425°C)
Low-temperature Carbon SteelASTM A352 Grade LCBLow temperature to -50°F (-46°C). Use excluded above +650°F (+340°C).
Low-temperature Carbon SteelASTM A352 Grade LC1Low temperature to -75°F (-59°C). Use excluded above +650°F (+340°C).
Low-temperature Carbon SteelASTM A352 Grade LC2Low temperature to -100°F (-73°C). Use excluded above +650°F (+340°C).
3.1/2% Nickel SteelASTM A352 Grade LC3Low temperature to -150°F (-101°C). Use excluded above +650°F (+340°C).
1.1/4% Chrome 1/2% Moly SteelASTM A217 Grade WC6Non-corrosive fluids such as water, oil, and gases at temperatures range -20°F (-30°C) and +1100°F (+593°C).
2.1/4% ChromeASTM A217 Grade C9Non-corrosive fluids such as water, oil, and gases at temperatures range -20°F (-30°C) and +1100°F (+593°C).
5% Chrome 1/2% MolyASTM A217 Grade C5Mild corrosive or erosive applications and non-corrosive applications at temperatures between -20°F (-30°C) and +1200°F (+649°C).
9%ChromeASTM A217 Grade C12Mild corrosive or erosive applications and non-corrosive applications at temperatures between -20°F (-30°C) and +1200°F (+649°C).
1% Moly
12% Chrome SteelASTM A487 Grade CA6NMCorrosive application at temperatures between -20°F (-30°C) and +900°F (+482°C).
12% ChromeASTM A217 Grade CA15Corrosive application at temperatures up to +1300°F (+704°C)
Stainless steel 316ASTM A351 Grade CF8MCorrosive or either extremely low or high-temperature non-corrosive services between -450°F (-268°C) and +1200°F (+649°C). Above +800°F (+425°C) specify carbon content of 0.04% or greater.
Stainless steel 347ASTM 351 Grade CF8CMainly for high temperature, corrosive applications between -450°F (-268°C) and +1200°F (+649°C). Above +1000°F (+540°C) specify carbon content of 0.04% or greater.
Stainless steel 304ASTM A351 Grade CF8Corrosive or extremely high temperatures non-corrosive services between -450°F (-268°C) and +1200°F (+649°C). Above +800°F (+425°C) specify carbon content of 0.04% or greater.
Stainless steel 304LASTM A351 Grade CF3Corrosive or non-corrosive services to +800F (+425°C).
Stainless steel 316LASTM A351 Grade CF3MCorrosive or non-corrosive services to +800F (+425°C).
Alloy-20ASTM A351 Grade CN7MGood resistance to hot sulfuric acid to +800F (+425°C).
MonelASTM 743 Grade M3-35-1Weldable grade. Good resistance to corrosion by all common organic acids and saltwater. Also highly resistant to most alkaline solutions to +750°F (+400°C).
Hastelloy BASTM A743 Grade N-12MWell suited for handling hydrofluoric acid at all concentrations and temperatures. Good resistance to sulphuric and phosphoric acids to +1200°F (+649°C).
Hastelloy CASTM A743 Grade CW-12MGood resistance to span oxidation conditions. Good properties at high temperatures. Good resistance to sulphuric and phosphoric acids to +1200°F (+649°C).
InconelASTM A743 Grade CY-40Very good for high-temperature service. Good resistance to spangly corrosive media and atmosphere to +800°F (+425°C).
BronzeASTM B62Water, oil, or gas: up to 400°F. Excellent for brine and seawater service.

The Priority Selection of Erosion Resistance Material For Control Valves (Degraded Performance)

  • Ceramic
  • Chrome & Tungsten Carbide
  • Alloy 6 Hard Facing
  • Inconel
  • 416 SS
  • 17-4 PH
  • K Monel
  • 316 SS
  • Hastelloy B & C
  • Monel
  • Alloy 20
  • Bronze

The Temperature Limit For Body Material of Control Valves

  • Cast Iron: -28 ~ 210°C
  • Ductile Iron: -28 ~ 340°C
  • Carbon Steel (WCB): -28 ~ 425°C
  • Carbon Steel (LCB): -45 ~ 340°C
  • CrMo (WC6): -28 ~ 537°C
  • CrMo (WC9): -28 ~ 565°C
  • CrMo (C5, C12): -28 ~ 648°C
  • 304SS, 316 SS: -253 ~ 815°C
  • Alloy 20: -45 ~ 148°C
  • Aluminum: -198 ~ 204°C
  • Bronze: -198 ~ 287°C
  • Inconel: -198 ~ 648°C
  • Monel: -198 ~ 480°C
  • Hastelloy C: -198 ~ 537°C
  • Titanium: ~ 350°C

The Priority Selection of Erosion Resistance Material For Control Valves (Degraded Performance)

The Temperature Limit For Body Material of Control Valves

Frequently asked questions and maintenance tips about control valves

Common Problem Causes Risks/Consequences Prevention Tips
Cavitation Rapid fluid movement, pressure decreases, and liquid collapses. Damage to valve parts, operational inefficiencies, noise, and vibrations. Correct valve sizing, use of specialized valve trims, and reduction of pressure decreases.
Sticking Valves Accumulation of dirt or debris, insufficient lubrication, and corrosion. Operational interruptions, safety risks, and damage to valve and system components. Routine maintenance, adequate lubrication, and the use of corrosion-resistant materials.
Leaking Valves Loose packing, damaged seals, and valve wear. Operational inefficiencies, safety risks, and environmental considerations. Regular maintenance, replacing damaged components, and using high-quality seals and packing.
Actuator Failure Mechanical degradation, failure of electrical or electronic components, and insufficient maintenance. Operational disruptions, safety risks, and harm to valve and system parts. Regular maintenance, replacing damaged components, and utilizing high-quality actuators.
Valve Flutter Incorrect actuator sizing, excessive pressure drops in the system, and valve instability. Operational inefficiencies, safety risks, and harm to valve and system components. Correct actuator sizing, minimizing pressure drops, and employing valve positioners.
Erosion and Corrosion Presence of abrasive or corrosive process fluids, insufficient selection of valve materials. Damage to valve and system components, operational inefficiencies, safety risks. Correct selection of valve materials, application of protective coatings and linings, and routine maintenance.
Incorrect Valve Sizing Incorrect calculation of flow rates and system requirements, utilization of inappropriate valve sizing equations. Operational inefficiencies, safety risks, and harm to valve and system components. Accurate calculation of flow rates and system requirements, utilization of proper valve sizing equations, and seeking guidance from valve experts.
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