Sporlan 4181-00 Valve

The Sporlan R42E197M is a heavy-duty, normally daily closed (N/C) solenoid valve engineered for precision refrigerant flow control in commercial refrigeration and HVAC systems. Featuring 7/8" ODF solder connections, this E19 series valve is designed for high-capacity liquid, suction, or discharge gas service. The extended copper stubs facilitate ease of installation by allowing technicians to braze without disassembling the internal components, protecting the integrity of the synthetic seating material. This model is compatible with a wide range of refrigerants including R-22, R-134a, R-404A, and R-407C, making it a versatile choice for refrigeration rack systems and large-scale split systems. Its robust pilot-operated piston construction ensures reliable opening even under high pressure differentials, though it requires a minimum pressure drop for stable operation. When replacing a Sporlan 4181-00, ensure the coil voltage matches the existing control circuit, as the solenoid coil is typically sold separately to accommodate various electrical requirements.

Technical Specifications & Benefits

• High Dielectric Strength: Encapsulated coil design prevents moisture ingress in low-temperature applications.
• 7/8" ODF Extended Ends: Simplifies the brazing process and reduces the risk of overheating internal gaskets.
• Tight Seating: Synthetic seating provides a positive shut-off to prevent refrigerant migration during the off-cycle.
• Serviceability: Can be completely disassembled for inspection or cleaning without removal from the line.
• Application Versatility: Suitable for liquid line, suction line, or hot gas bypass configurations.

Frequently Asked Questions

What causes a Sporlan solenoid valve to hum or buzz?
Audible humming usually indicates a voltage drop at the coil, a missing solenoid spring, or debris trapped between the plunger and the enclosing tube. Verify that the supply voltage matches the coil rating and check for mechanical obstructions.

Is this valve compatible with R-410A systems?
The R42E197M is rated for high-pressure refrigerants, but always verify the Maximum Rated Pressure (MRP) against your system’s peak discharge pressure. It is commonly utilized in systems where MOPD requirements are critical.

Does the coil come pre-installed on the R42E197M?
The valve body and the MKC-2 solenoid coil are generally packaged separately. This allows the contractor to select the specific 120V, 208V, or 240V coil required for the HVAC control circuit.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.