DELCO MAY-DC Hydraulic Fluorine-Lined Wafer Cast Steel Butterfly Valve for Acid & Alkali Service
The DELCO MAY-DC hydraulic fluorine-lined wafer cast steel butterfly valve (DN50–DN600, PN10/PN16) is engineered for aggressive chemical service — including sulfuric acid, hydrochloric acid, and chlor-alkali lines. It pairs a WCB cast steel body with PTFE/F46 lining (up to 180°C) and the MYD-series hydraulic gear & rack actuator (2.0–16 MPa supply, output torque 28–25,340 Nm across MYD32–MYD160). Features include ±5° fine-tuning, bottom manual override, top-mounted limit/travel/proximity switches for remote operation, ISO 5211 mounting, and compliance with API 609 / ASME B16.5 / EN 1092-1. Manufactured under ISO 9001 / CE certification for global chemical, petrochemical, and pharmaceutical applications.
Size Range: DN50–DN600, PN10/PN16
Selection Manual
Key Features
The DELCO MAY-DC pairs a WCB cast steel body with a PTFE/F46 fluorine lining (DN50–600, up to 180°C) and the MYD-series hydraulic gear & rack actuator (2.0–16 MPa, 28–25,340 Nm), delivering rugged, corrosion-proof shut-off for sulfuric/hydrochloric acid and chlor-alkali service — with precise ±5° control, manual override, remote-ready switching, ISO 5211 mounting, and global API 609 / ASME B16.5 / EN 1092-1 compliance.
✅Corrosion-proof fluorine lining — WCB cast steel body with PTFE/F46 lining resists sulfuric acid, hydrochloric acid, alkalis, and oxidants up to 180°C for long service in chemical and chlor-alkali plants.
✅High-torque MYD hydraulic actuator — Gear & rack transmission with integrated-piston cast carbon steel cylinder, 2.0–16 MPa supply pressure, output torque from 28 Nm (MYD32) to 25,340 Nm (MYD160) — covering DN50–DN600 lines.
✅Precise & fail-safe control — ±5° open/close fine-tuning via adjustment bolts, plus bottom-mounted manual override for emergencies in remote or hazardous areas.
✅Global-standard, remote-ready — ISO 5211 mounting, top-mounted limit/travel/proximity switches for remote operation; design per API 609, flanges per ASME B16.5 / EN 1092-1; manufactured under ISO 9001 / CE certification.
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Hydraulic Actuator
Key Application Fields
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Oil & Gas
DELCO API-certified valves ensuring safety and reliability in demanding high-pressure pipelines. -
Chemical & Petrochemical
DELCO corrosion-resistant solutions tailored for handling aggressive acids and hazardous fluids safely. -
Power Generation
DELCO solutions efficiently withstand extreme high-temperature and high-pressure steam cycles in power plants. -
Food & Pharmaceutical
DELCO sanitary valves with FDA-compliant, crevice-free designs to ensure absolute product purity. -
Water & Wastewater
Durable municipal solutions by DELCO, designed for zero leakage and long-term sustainability. -
HVAC & District Heating
DELCO valves ensure precise flow regulation to optimize energy efficiency in modern buildings.
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