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Product Categories

  • Actuator

    Electric and pneumatic actuators for precise and reliable automation.
    • zxjt Electric Actuator: Quarter-Turn / Multi-Turn / IP67 / IP68 / Explosion-Proof
    • zxjt Pneumatic Actuator: Scotch Yoke / Rack-and-Pinion
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  • Electric Actuated Valve

    Motorized valves for smart on/off and control applications.
    • zxjt Electric Ball Valve: Thread / Flange / Sanitary / Plastic / Lined / High-Pressure...
    • zxjt Electric Butterfly Valve: Wafer / Lugged / Flange / Sanitary / Plastic / Fluorine-Lined...
    • zxjt Electric Gate / Globe / Knife Gate
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  • Pneumatic Actuated Valve

    Fast, durable pneumatic solutions for demanding duty cycles.
    • zxjt Pneumatic Ball Valve: Thread / Flange / Sanitary / Plastic / Lined / High-Pressure
    • zxjt Pneumatic Butterfly Valve: Wafer / Lugged / Sanitary / Flange / Fluorine-Lined...
    • zxjt Pneumatic Gate & Globe / Knife Gate / Angle Seat / Filling / Dome
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  • Globe Control Valve

    Accurate flow, pressure, and temperature control for process stability.
    • zxjt Pneumatic Globe Control Valve
    • zxjt Electric Globe Control Valve
    • zxjt Self-Operated Control Valve
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  • Solenoid Valve

    Compact, responsive valves for media isolation and dosing.
    • zxjt Direct Acting / Pilot Piston
    • zxjt High-Pressure / High-Temperature
    • zxjt Food-Grade / Anti-Corrosion
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  • Manual Operated Valve

    Comprehensive manual and safety series for universal use.
    • zxjt Manual: Ball / Butterfly / Gate / Globe / Knife Gate
    • zxjt Special: Check Valve / Y-Strainer / Steam Trap / Safety Valve
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  • Special Valve

    Reliable components for critical process protection and flow management.
    • zxjt Check Valve / Safety Valve / PRV
    • zxjt System Accessories: Steam Trap / Y-Strainer
    • zxjt Explosion Protection: Detonation Flame Arrester
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  • Marine Valve

    Marine-grade valves built for saltwater and harsh environments.
    • zxjt Marine Gate Valve
    • zxjt Marine Globe Valve
    • zxjt Marine Butterfly Valve
    View Category

OEM & Project Support — 12–24h Quotation

DELCO is a China-based manufacturer with 20+ years of experience in valves and automation. We help distributors and project buyers quickly match the right configuration for on/off or modulating control, and reply with model recommendations and a quotation within 12–24 hours.

To quote fast, please send: Media • Pressure • Temperature • Size • Standard • Connection type • Control type
Pressure test & inspection reports available upon request.

Materials & Lining
304/316, WCB, cast iron, brass, plastics, and PTFE/PFA lining options for chemical and corrosion service.
Valve Types & Standards
Ball, butterfly, gate, globe, check, knife gate, solenoid. API / ANSI / DIN / JIS. Flanged / wafer / threaded.
Actuation & Control Matching
Electric or pneumatic actuation for on/off or modulating control. Torque sizing + accessories. ATEX (Ex) options available.
Testing & Documentation
Pressure testing and final inspection before shipment. Test & inspection reports available on request.
DELCO-automated-production-line-for-valve-components-
valve-product-showroom
DELCO pre-shipment inspection and functional testing for valve actuators
Automated Production & Consistent Quality
Full Portfolio, Fast Selection (12–24h)
Inspection & Functional Testing
Automated machining and controlled processes help ensure stable tolerances and repeatable quality for valve components. Built to support reliable performance and consistent delivery for distributors and projects.
Share your application details—media, pressure, temperature, size, and standard (DIN/ANSI/JIS/API). DELCO engineers will reply with a matched valve + actuator recommendation, plus datasheets/drawings and a quotation within 12–24 hours.
Pre-shipment inspection and functional testing are performed before delivery. Inspection reports are available upon request, and pressure test reports can be provided for specified orders/models.
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Why Buyers Choose DELCO

  • Our Advantages

    • 20+ Years Factory: proven manufacturing experience and stable supply for distributors and projects
    • 12–24h Quotation: fast response with recommended model list and technical documents
    • One-Stop Matching: valve + actuator integration for automation requirements
    • Quality You Can Verify: pressure test & inspection reports available upon request
    • Documentation Support: ISO 9001 • CE/RoHS • ATEX • EN 10204 3.1
    • Export-Ready Delivery: protective packing and flexible shipping plans for different markets

  • Industries & Applications

    Designed for common industrial services and control requirements, DELCO solutions are widely used in

    Oil & Gas
    Water & Wastewater
    Power Generation
    Chemical & Petrochemical
    Pharmaceutical
    Marine & Shipbuilding
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Resource Center

Request a Project Document Pack: catalog, datasheets, drawings, and test/inspection report samples—plus a quotation within 12–24 hours.

Get your project pack.
Get Quote (12–24h)

Download Center

Need documents for evaluation? Get DELCO catalogs, datasheets, and selection guidance to speed up sourcing and internal approval.

Frequently Asked Questions

  • Q.

    What technical specifications are required for an accurate quotation?

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    Valve Type & Size: (e.g., DN15–DN600 / 1/2"–24") Pressure & Temperature Rating: (e.g., PN16–PN100, Class 150–1500, -20°C to 450°C) Working Media: (e.g., steam, seawater, corrosive chemicals, slurries) End Connection & Standards: (Flanged, Threaded, Welded, Wafer / DIN, ANSI/ASME, JIS, API) Operation Mode: Manual, Pneumatic (Single/Double Acting), or Electric (On/Off, Modulating 4–20mA)
  • Q.

    How do you ensure proper sizing when matching valves and actuators?

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    DELCO utilizes precision torque calculation protocols to prevent valve jamming and ensure long service life. We apply a standard 20%–30% safety torque margin based on your maximum operating pressure and media friction. Our packages feature standard ISO 5211 direct-mount flanges, complete with solenoids, limit switch boxes, and electro-pneumatic positioners (HART/Modbus compatible).
  • Q.

    What materials and harsh-service solutions do you offer?

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    We stock and manufacture across a broad metallurgical range: Standard Metals: WCB/WCC carbon steel, SS304/CF8, SS316/CF8M, Ductile Iron, Brass, and Bronze. Corrosion & High-Alloy: Duplex 2205, Super Duplex 2507, Hastelloy C276, and Monel. Lined Valves: Fully PTFE/PFA-lined options for severe chemical handling. All materials are fully traceable with 100% PMI testing before casting machining.
  • Q.

    Can you provide marine class approvals and inspection certificates?

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    Yes. Every shipment comes standard with an EN 10204 3.1 Material Test Certificate (MTC) and factory hydrostatic/air test reports conforming to API 598 or EN 12266-1. For our Marine Valve series, we support classification society inspections and documentation, including CCS, DNV, ABS, BV, and LR. Third-party inspections (SGS, TÜV, Intertek) are welcome prior to dispatch.
  • Q.

    What is your typical lead time and minimum order quantity (MOQ)?

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    DELCO maintains a flexible supply chain with No strict MOQ for standard configurations (single-unit orders for engineering replacement or prototyping are supported): In-Stock Components & Assembly: 3–7 business days Standard Production Batches: 2–3 weeks Special Alloys / Custom Machined Valves: 4–6 weeks Express air freight (DHL/FedEx/Air Cargo) and Sea freight DDP terms are available worldwide.
  • Q.

    Can electric and pneumatic actuators be configured for fail-safe or hazardous areas?

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    Yes. For explosion-proof environments (refineries, chemical plants), we provide ATEX / IECEx-certified electric actuators (Ex d IIB/IIC T4/T5) and SIL-rated pneumatic safety loops. Fail-safe requirements can be configured using mechanical spring-return designs (pneumatic) or supercapacitor/battery-backup units (electric) to drive the valve fully closed or fully open upon power loss.