Asco 8210G035 Solenoid Valve 8210G35

The Asco 8210G035 solenoid valve (8210G35) is a 3/4″ normally open, pilot-operated valve designed to automatically open and allow flow when power is removed — making it a critical solution for systems that require fail-open operation. Its high flow capacity (Cv 5.5) and pressure rating of up to 150 psi make it especially suited for draining, bypassing, and pressure relief tasks in water systems, compressed air lines, and industrial fluid circuits.

Technical Specifications

• Valve Type: Pilot Operated, Normally Open, 2-way
• Pipe Size: 3/4″ NPT
• Flow Factor (Cv): 5.5
• Operating Pressure Differential:
  • Air/Inert Gas: 0 to 150 psi (AC), 0 to 125 psi (DC)
  • Water: 0 to 150 psi (AC), 0 to 125 psi (DC)
  • Light Oil: 0 to 125 psi (AC), 0 to 80 psi (DC)
• Maximum Fluid Temperature:
  • AC: 180°F (82°C)
  • DC: 150°F (65°C)
• Body Material: Brass
• Seal Material: NBR (Nitrile Butadiene Rubber), PTFE
• Voltage Options:
  • AC (60Hz): 24, 120, 240, 480V
  • AC (50Hz): 110, 220V
  • DC: 6, 12, 24, 120, 240V
• Watt Rating:
  • AC: 10.1 watts (Class F)
  • DC: 11.6 watts (Class F)
• Coil Insulation Class: F
• Solenoid Enclosure:
  Standard: RedHat II (Watertight, Types 1-4X); RedHat (Type I)
  Optional:
  • RedHat II (Explosionproof & Watertight, Types 3-9)
  • RedHat (Explosionproof & Raintight, Types 3, 4, 4X, 7, 9)

Key Features and Functionality

• Fail-Open Safety Function: Opens automatically when power is lost for system protection.
• Higher Flow for Mid-Size Lines: Cv 5.5 allows fast draining or filling of larger lines.
• Pressure Handling up to 150 psi: Suitable for higher pressure service in air and water systems.
• Wide Fluid Compatibility: It handles air, water, and light oil with durable NBR/PTFE seals.
• Compact and Easy to Install: Integrates easily into existing pipework without big space requirements.

Compatible Components and Related Parts

• ASCO RedHat II Coil Series
• ASCO Mounting Brackets
• ASCO Seal Kit for 8210 Series
• ASCO Explosionproof Solenoid Enclosure

Industry Applications

• Car Wash Systems: Prevents water buildup by automatically draining lines.
• Compressed Air Systems: Acts as a fail-open drain or pressure relief valve.
• Industrial Water Management: Provides automatic bypass or venting when de-energized.
• Pumping Stations: Controls flow release during shutdown or maintenance.
• Chemical and Fluid Handling: Safely drains or vents systems in the event of power failure.

Compliance and Approvals

• UL Listed (General Purpose and Safety Shutoff Valves)
• CSA Certified
• CE Directives
• ATEX/IECEx certified with “EV” prefix for hazardous locations
• NSF/ANSI 372 low lead compliant (Safe Drinking Water Act, Section 1417)

Installation and Operational Notes

• For best performance, mount the solenoid vertically and upright.
• DC valves must be installed with the solenoid upright.
• Use proper pipe sealing to prevent leakage.
• Coil voltage must be specified when placing an order.
• Suitable for air, water, and light oil up to 300 SSU.

Series Catalog

Asco 8210 Series Catalog PDF

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