Overview
The Atkomatic HS-500 solenoid valve is a 2-way, normally closed solenoid-operated valve engineered for steam and hot water service. This 3/4″ pipe × 1″ port configuration provides efficient flow control in heating systems, facility maintenance applications, and industrial process control. With a bronze body construction and full port design, the HS-500 delivers tight shutoff and reliable performance in continuous-duty operations.
Key Features
- Full port design with Cv ranging from 1.4 to 21 for optimized flow capacity
- Bronze body construction — Naval M bronze for superior corrosion resistance and long service life
- Metal-to-metal pilot seat and Teflon piston seat for positive shutoff and minimal leakage
- Hermetically-sealed solenoid coils — available in standard Class B and high-temperature Class H ratings
- Minimal moving parts — piston and plunger assembly for easy maintenance and field repair
- No stem packing except on manual override (throttling) device, reducing maintenance downtime
Technical Specifications
- Operating Pressure: 5 to 125 psig (0.35 to 8.6 bar)
- Temperature Range: Up to 352°F (178°C)
- Port Sizes: 3/4″ pipe inlet, 1″ port outlet
- Valve Type: 2-way, solenoid-operated, normally closed
- Body Material: Bronze (Naval M)
- Seat Material: Teflon piston seat, metal-to-metal pilot
- Seal Material: Teflon body o-ring
- Coil Options: Class B (standard), Class H (high-temperature)
- Standard Coil Voltages: 24 VAC/60 Hz, 115 VAC/60 Hz, 230 VAC/60 Hz, 24 VDC (other voltages available)
- Service: Steam, hot water, light oils, air, inert gases
Typical Applications
- Facility heating and HVAC steam control systems
- Industrial process heating and temperature regulation
- Hot water circulation and distribution networks
- Facility maintenance steam supply lines
- Food processing and hospitality hot water systems
- Laboratory and research facility fluid control
Compatibility & Replacements
Compatible With
- Industrial pneumatic and hydraulic systems using Class B and Class H solenoid coils
- Standard 24 VAC/DC and 115–230 VAC control circuits
- Circle Seal Solenoid Valve product ecosystem
- Systems requiring hermetically-sealed coil protection
Replaces / Drop-In Replacement For
The Atkomatic HS-500 is a standard model in the HS Series line. For specific model interchangeability and drop-in replacement confirmation, verify compatibility with your system integrator or consult the manufacturer’s technical manual. Many HS Series variants use interchangeable internal components, enabling field maintenance without complete valve replacement.
Works With
- Standard 24/110/115/220/230/460 VAC solenoid control systems
- 24 VDC control circuits and PLC/automation platforms
- Manual override (throttling) devices for assisted opening
- Pilot-operated and direct lift solenoid configurations
- Industry-standard solenoid coil replacement program (Class B and H coils interchangeable within series)
