sales@delcofluid.com +86 159 8960 2972
  • Engineer adjusting blue pneumatic control valves in the DELCO assembly workshop

    Custom Automatic Control Valves Built to Your Specifications

    Industrial Pneumatic, Electric & Control Valves | In-house Manufacturing
    from Casting to Pressure Testing

    Browse Our Products Talk to an Engineer
  • DELCO electric actuated ball valve, pneumatic actuated ball valve and pneumatic control valve installed on process pipelines

    Advanced Valve Solutions for Industrial Flow Control

    Reliable Flow Control. Precise Automation. Built for Demanding Applications.
    Electric, pneumatic, hydraulic, control and solenoid valves from one manufacturer.

    Browse Our Products Talk to an Engineer
  • Customized DELCO electric actuated ball valves on an engineering workbench with 3D CAD drawings

    Your Trusted Partner in Industrial Valve Solutions

    Valve solutions can be customized to meet the needs of specific industries and operating conditions: materials, connections, actuators, colours and your own brand.

    Request a Custom Quote Browse Our Products
  • DELCO pneumatic actuated ball valve on a pressure test bench in the quality control laboratory

    Valve Solutions Designed to Meet International Quality & Safety Requirements

    DELCO Valve Solutions holds multiple quality certifications, including ATEX, SIL, ISO 9001, CE, RoHS, FDA, BV, as well as patented technologies.

    View Certificates Talk to an Engineer
    SGS, ISO 9001, RoHS, CE, FDA, ATEX, ECM certifications
Product Series

Explore Our Products

DELCO manufactures automated control valves and actuator assemblies. We supply standard valves, full-specification customization, and OEM & ODM for global industrial flow-control projects.

Flow Control Valve

Electric, pneumatic and self-operated control valves for precise flow, pressure and temperature regulation.

Browse Series
Flow Control Valve
Who We Are

Your Partner for
Automated Valves & Services

DELCO Valve Co., Ltd has designed, machined and assembled fluid control valves in Dongguan since 2005. R&D, casting, machining, assembly and testing all happen under one roof, which is why we can quote a custom actuator on Monday and ship it inside three weeks.

  • About DELCO
  • R&D & Manufacturing
  • Quality Control System
  • Raw‑Material Sourcing
  • After‑Sales & Technical Support
    • DELCO Valve headquarters building in Dongguan
    • DELCO global marketing and R&D center reception
    • DELCO open-plan office with sales and engineering teams
    • DELCO headquarters campus in Dongguan, Guangdong

    About DELCO

    Spanning 15,000 square meters, our smart headquarters integrates automated CNC machining centers to triple production capacity.

    Powered by Industry 4.0, the facility features robotic assembly cells, AI-driven quality inspection, and digital twin simulation for custom designs. This advanced infrastructure drives the precise manufacturing of our IP67/NEMA 4X electric actuator valve series.

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    • 40+Industries Served
    • 89Countries Covered
    • 950+Clients Worldwide
    • 2005Year Established
    • DELCO engineer designing a valve body in 3D CAD
    • CNC machining centers in the DELCO workshop
    • CNC lathing of valve parts
    • Electric actuator assembly line

    R&D & Manufacturing

    From drawing to finished valve, everything is made in-house. Our engineers work with a full 2D/3D CAD model library and independent ODM mould development for custom bodies and actuators.

    Production follows 17 lean procedures: wax-mould investment casting, CNC sawing, lathing and machining, deep-hole drilling, coil winding, valve and actuator assembly, coating and plate marking.

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    • 40+Industries Served
    • 89Countries Covered
    • 950+Clients Worldwide
    • 2005Year Established
    • Final quality control testing of solenoid valves
    • Hardness test on a stainless steel ball valve
    • Sealing test of ball valves
    • Final inspection of pneumatic actuators

    Quality Control System

    Quality is checked at every stage, not only at the end. Our four-step chain (IQC incoming, IPQC in-process, FQC final and OQC outgoing inspection) runs under the ISO 9001:2015 system.

    Every valve is 100% pressure and function tested before shipment, including sealing and hardness tests, to API 598 / EN 12266-1 or to your own specification.

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    • 40+Industries Served
    • 89Countries Covered
    • 950+Clients Worldwide
    • 2005Year Established
    • Chemical analysis of incoming material
    • Metallographic analysis under the microscope
    • Inspection of a cast valve body
    • Incoming quality control of cast valve parts

    Raw-Material Sourcing

    Reliable valves start with verified material. Every batch of castings, bar stock and components is checked at incoming inspection before it enters production.

    Our lab runs chemical analysis, rapid alloy identification and metallographic analysis, and each material is backed by a Material Test Certificate (MTC) covering chemical, corrosion, mechanical and impact tests.

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    • 40+Industries Served
    • 89Countries Covered
    • 950+Clients Worldwide
    • 2005Year Established
    • DELCO field engineer inspecting an installed valve
    • DELCO engineer providing remote technical support
    • Valve operation and maintenance training session
    • DELCO electric valves installed on site

    After-Sales Support

    Our support continues long after delivery. Sales and engineering teams are available 24/7 for troubleshooting and remote diagnostics by phone, email or video call.

    We recommend annual or semi-annual preventive maintenance, train your team on operation and emergency procedures, and cover every valve with a 12-month standard warranty including free parts.

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    • 40+Industries Served
    • 89Countries Covered
    • 950+Clients Worldwide
    • 2005Year Established
Real Cases

DELCO Real-World Project Reference

  • ZJHP pneumatic diaphragm globe control valves in a pharmaceutical sterile water system, Germany
    Pharmaceutical

    Pharmaceutical Sterile Water System

    Eighteen ZJHP series pneumatic diaphragm globe control valves with FDA-compliant electropolished 316Ti bodies.

    Learn More
  • DELCO electric 3-piece threaded ball valves in a building services plant room, Netherlands
    HVAC

    Commercial HVAC/Hot Water System

    The valves, identified as 3-Piece Ball Valves, are ideally suited for reliable on/off and flow control in heating and chilled water loops.

    Learn More
  • DELCO pneumatic flange ball valves at a petrochemical plant in Saudi Arabia
    Oil & Gas

    Petrochemical Plant, Saudi Arabia

    DELCO pneumatic flange ball valves for oil & gas processing, ATEX Zone 2 certified with 0.4 s emergency response time.

    Learn More
  • DELCO corrosion-resistant solenoid valves on an offshore produced water system, Norway
    Offshore Marine

    Offshore Produced Water, Norway

    Corrosion-resistant solenoid valves on a North Sea platform: 99.98% uptime over 24 months, up from 87% before.

    Learn More
  • DELCO electric flange ball valves at the GTI project in Binh Duong, Vietnam
    Electronics

    GTI Electronics Project, Vietnam

    120 DN200 electric flange ball and wafer butterfly valves with Modbus integration and ISO 5211 mounting.

    Learn More
  • DELCO pneumatic control valves at an ethylene cracker in Antwerp, Belgium
    Petrochemical

    Ethylene Cracker Upgrade, Belgium

    DELCO pneumatic valves cut quench water flow variation to ±2%, with zero process trips since the 2023 Q2 installation.

    Learn More
  • DELCO Q-Series explosion-proof electric flanged ball valves on a gas pipeline, Russia
    Oil & Gas

    Arctic Gas Pipeline Expansion, Russia

    Q-Series explosion-proof electric flanged ball valves with smart integrated actuators for a Siberian gas pipeline.

    Learn More
  • DELCO electric butterfly valves in municipal energy infrastructure, Copenhagen
    Water Treatment

    Municipal Energy System, Denmark

    Electric butterfly valves with IP68-rated actuators and Modbus RTU, 30% faster shutdown and zero leakage per API 598.

    Learn More

We turn your ideas to reality. We don’t stop until you’re satisfied.

View More Cases
Solutions

Valve Solutions for Every Application

  • Oil & Gas
  • Water
    Treatment
  • Chemical
    Processing
  • Mining Metallurgy
    & Slurry
  • Food &
    Beverage
  • Power
    Generation
  • Pharmaceutical
  • HVAC
  • Offshore
    Marine
Certifications

Qualification Certificate

DELCO valves are certified with global industrial approvals to satisfy international project requirements. Use the arrows or the bars below to browse our qualification documents.

  • ECM verification certificate for DELCO valves
  • ATEX EU-type examination certificate for the explosion-proof coil
  • ISO 9001 quality management system certificate
  • CE certificate of conformity for DELCO valves
  • RoHS certificate of conformity for DELCO valves
  • FDA test report for DELCO valve products
  • ECM

    ECM Certificate

    Verification by Ente Certificazione Macchine for DELCO valves under the Pressure Equipment Directive 2014/68/EU.

  • ATEX

    ATEX Certificate

    EU-type examination certificate issued by ECM for the explosion-proof electromagnetic coil used on DELCO valves.

  • ISO

    ISO 9001 Certificate

    Quality management system certified to ISO 9001:2015 for the production and sales of fluid control valves.

  • CE

    CE Certificate

    CE Certificate of Conformity issued by HTT for DELCO valve products sold into the European market.

  • RoHS

    RoHS Certificate

    RoHS Certificate of Conformity issued by HTT for the restriction of hazardous substances in DELCO valves.

  • FDA

    FDA Test Report

    FDA test report issued by KEYS Testing for DELCO valve products used in food and hygienic applications.

  • FCC
  • Bureau Veritas
  • ISO 9001
  • RoHS
  • CE
  • FDA
  • ATEX Ex
  • ECM
  • TÜV
DELCO technician adjusting an actuated valve on a pipeline
Why Partner with DELCO-Valve

German-Engineered Quality,
Efficient Asian Lead Times

  • Precision Engineering

    Advanced manufacturing for precise, reliable valve performance.

  • Quality Materials

    Carefully selected materials for strength, durability, and service life.

  • Right Valve, Right Fit

    The right valve for your pressure, temperature, and media.

  • 100% Factory Testing

    Every valve is tested before shipment for reliable performance.

  • Strict Quality Control

    Quality is controlled throughout every stage of production.

  • Reliable Performance

    Built for demanding conditions and long-term operation.

  • Technical Support

    Expert guidance from valve selection to system application.

  • Custom Solutions

    Flexible specifications and solutions tailored to your needs.

Global Reach

Serving 100+ Countries Worldwide

DELCO team supports End-to-end service for control valve projects: technical consultation, project support and post-sales maintenance.

  • 100+

    Serving Countries

  • 20+

    Manufacturing Experience

  • 35+

    Trained Sales Specialists

  • 2D & 3D

    CAD Model Library

DELCO valves serving 100+ countries worldwide
FAQs

Have Questions for Your Valve Projects?

Get expert support for standard valves, custom designs and OEM projects. Send us your inquiry NOW!

  • Are you a real valve manufacturer or trading company?

    We are an in-house manufacturer for automated control valves and actuator assemblies. All core processes including casting, CNC machining, assembly and performance testing are completed in our own factory. OEM & ODM services are supported.

  • What is your typical lead-time for standard & custom valves?

    Our standard lead time is 7–15 working days, with expedited options available for urgent projects. For custom valves, the delivery date is confirmed with your quotation once drawings and specifications are approved.

  • Can you manufacture valves according to our drawings or custom specifications?

    Yes. As an OEM & ODM manufacturer we build valves and actuator assemblies to your drawings or specifications – custom painting colour, dimensions, connections, accessories and your own brand. Our engineers also provide 2D & 3D CAD models for your project approval.

  • What test reports come with each valve shipment?

    Every valve passes 100% pressure and function testing before shipment. Depending on the order, documents include pressure and sealing test reports, Material Test Certificates (MTC: chemical analysis, corrosion, mechanical and impact tests) and actuator test reports such as the IP65 protection grade test.

  • What international standards do your valves comply with?

    Our production follows an ISO 9001:2015 quality management system and our products carry CE, RoHS and FDA certifications. Valves are tested according to API 598, API 6D, EN 12266-1 or your own specifications.

  • What is your warranty policy?

    DELCO valves come with a 12-month standard warranty covering manufacturing defects, including free parts. Extended service contracts are available on request, backed by 24/7 technical support by phone, email or video call.

  • Do you support small trial orders as well as large-volume projects?

    Yes. We have no minimum order quantity, so you can start with a trial order to check our quality before moving on to volume projects. Samples can be arranged after price confirmation.

DELCO engineer checking control valves on site

Request a Quote for Your Valve Project

Share your requirements. Get the right valve solution, expert support, and a tailored quote for your project.

  • Reply within 24 working hours.
  • Custom OEM & ODM manufacturing available.
  • Complete test certificates provided with every order.
  • Global shipping with reliable after-sales support.