Valve Positioner

Century Weiye ：Your Leading Valve Positioner Manufacturer in China!

JWY Valves specializes in the design, production, and supply of high-performance industrial valves for over 5years. Our product range includes 300LB Lug Butterfly Valves, Class 150 Triple Offset Butterfly Valves, EN Butterfly Valves, and Bronze Dual Plate Check Valves, all manufactured to meet stringent international standards.

We serve global procurement teams across industries such as oil & gas, shipbuilding, rail transit, automotive, and chemical processing.

Customization

We support OEM/ODM orders and customized specifications to meet unique project needs.

One-Stop Service

Covering the entire process from inquiry/product selection/payment/production/quality inspection/logistics.

Extensive Sales Market

We serve clients in Europe, Southeast Asia, the Middle East, the Americas, and other regions. We have established stable partnerships with over 200 companies.

Fast Delivery

We can support urgent orders and achieve short lead times. Standard products can typically be shipped within 1 to 2 weeks.

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Introduction

Valve Positioners are intelligent control devices used to ensure that a control valve reaches and maintains the exact position required by a control system. They act as a closed-loop feedback controller, continuously comparing the input signal with the actual valve position and adjusting actuator pressure to eliminate deviation.

Specifications

Feature	DVC6215
Function	Remote magnetic feedback
Feedback Type	Non-contact Hall effect
Mounting	On actuator (remote from controller)
Temperature Rating	–40°C to 150°C (suitable for high-temp valves)
Compatible Controllers	DVC6205, DVC6200 Remote variants
Actuator Support	Linear & rotary
Environment	Corrosive, high-vibration, or hard-to-access locations

Features

Closed-Loop Precision Control

Positioners continuously compare actual valve position with the control signal and correct deviations in real time, ensuring high accuracy even in fluctuating conditions.

Faster Dynamic Response

By directly regulating actuator pressure, positioners reduce lag and improve response speed in control loops.

Multi-Signal Compatibility

Supports pneumatic signals (3–15 psi), electrical signals (4–20 mA), and digital protocols for integration with modern automation systems.

Flexible Mounting Options

Adaptable to various actuator types and valve structures, including globe, ball, and butterfly valves.

Typical Application Scenarios

Valve positioners are widely applied in industries requiring high-precision flow control and process stability:

Oil & Gas — High-pressure pipelines and refining processes

Chemical Processing — Accurate control of reactive or hazardous media

Power Plants — Steam flow, turbine, and boiler regulation

Water & Wastewater — Flow modulation and pressure control

Process Automation Systems — Integration with PLC/DCS control loops

Quality Inspection Process

Component Verification

Inspection of sensors, circuit boards, housings, and pneumatic modules

Assembly Accuracy Check

Mechanical linkage alignment and signal interface verification

Signal Response Test

Input/output signal accuracy and response speed validation

Calibration & Linearity Test

Zero, span, hysteresis, and repeatability testing

Environmental Simulation Test

Temperature, vibration, and pressure condition testing

Final Inspection & Documentation

Performance verification with traceable test records before shipment

After-Sales Support

We offer full lifecycle support to ensure system reliability:

Pre-sales technical consultation and model selection

Installation and commissioning guidance

Remote diagnostics and troubleshooting

Calibration and maintenance support

Spare parts supply and repair kits

Fast-response warranty service

FAQ

Q: Why is a valve positioner necessary?

A: It improves control accuracy, compensates for disturbances, and ensures stable valve performance.

Q: What types of positioners are available?

A: Pneumatic, electro-pneumatic (I/P), and digital smart positioners.

Q: How do I choose the right positioner?

A: Consider valve type, actuator type, control signal, and operating environment.

Q: Can positioners improve existing valve systems?

A: Yes, adding a positioner significantly enhances accuracy and response of existing control valves.

Q: What signals are supported?

A: 3–15 psi pneumatic, 4–20 mA, HART, and other digital communication protocols.

Q: Are positioners suitable for harsh environments?

A: Yes, with proper material selection and certifications (e.g., ATEX), they can operate in hazardous conditions.

Q: What is the typical lead time?

A: Standard models are usually available within 1–2 weeks; custom solutions depend on specifications.

Q: Do you provide calibration before shipment?

A: Yes, all positioners are calibrated and tested before delivery.

Q: Are spare parts and repair kits available?

A: Yes, we supply full maintenance kits and replacement components.

Q: Can positioners integrate with digital control systems?

A: Yes, modern positioners support PLC/DCS integration and smart diagnostics.

We are one of the most experienced valve positioner manufacturers and suppliers in China, featured by quality products and good price. Please rest assured to buy discount valve positioner in stock here from our factory. For quotation, contact us now.