Controlling Refrigerant Flow
The Bitzer suction Shut-off Valve controls low-pressure refrigerant entering the compressor, while the Bitzer discharge Shut-off Valve ensures high-pressure refrigerant is discharged. Together, they help maintain the balance between the high- and low-pressure sides of the system.
Preventing Backflow and Leakage
Bitzer shut-off valves effectively prevent refrigerant backflow, reducing energy loss and leakage risks in Bitzer and Copeland semi-hermetic compressors, ensuring stable operation of the compressor and piping system.
Simplifying Maintenance and Servicing
When repairing or replacing Bitzer semi-hermetic compressor components, simply closing the suction and discharge valves isolates the compressor. This avoids venting refrigerant and minimizes maintenance costs.
Enhancing System Safety and Efficiency
Proper use of Bitzer shut-off valves helps maintain stable operation of Bitzer and Copeland semi-hermetic compressors, extending their service life and reducing energy consumption.
We especially provide suction and discharge service shut-off valves for Bitzer semi-hermetic reciprocating compressors.
Bitzer Compressor Valves
2DC/2CC/2EC/4CC/4EC/4FC – Discharge Shut-off Valve (361315-10)
2DE/4DE/4CE – Discharge & Suction Service Valve (22×42mm)
2FC/2FE – Discharge Shut-off Valve 1/2″ (361315-11)
4CC/4DC – Suction Shut-off Valve (361315-05)
4F/4G/4H/6F/6G/6H – Suction Shut-off Valve (361312-03)
4G/4H/4J/4M – Discharge Shut-off Valve (361310-07)
4G/4H/4J/4N/4P – Suction Shut-off Valve (361338-01)
4N/4P/4M/4J/4H/4G – Discharge & Suction Service Valve (22×66mm, 361310-06)
4N/4P/4M/4J/4H/4G – Discharge & Suction Service Valve (28×66mm, 361310-07)
4NC(S)/4PC(S)/4TC(S) – Discharge Shut-off Valve (361315-13)
4NFC/4P/4T/6NFCY–Discharge & Suction Valve 1-1/8″ (361318-02 / 361318-03)
4VC(S)/4VES – Discharge Shut-off Valve (361315-12)
6F/6G/6H/6J/6M – Discharge Shut-off Valve (361311-02)
FC/F600 – Discharge & Suction Shut-off Valve (361318-01 / 361318-02)
We especially provide suction and discharge service shut-off valves for Copeland semi-hermetic reciprocating compressors.
Copeland Compressor Valves
2D/3D/4D/4R/6D/6R/9R – Rotalock Service Valve 1-3/8″ Steel (998-0510-46)
4D/4R/6D/6R – Discharge Shut-off Valve
4D/4R/6D/6R – Discharge Shut-off Valve Brass (.118″ / .138″ / .78″ Dia)
4D/4R/6D/6R – Suction & Discharge Shut-off Valve Cast-Iron (.118″ / .138″ Dia, 510-0023-00; .78″ Dia)
6D18 – Discharge Shut-off Valve (51V58, 510-0063-01)
6RB/6TM – Discharge Shut-off Valve (6RA4-10HP)
D8DH/D8SH – Suction Shut-off Valve (52V58, 2837142)
Discharge Shut-off Valve (52V18, 510-0023-00)
2D/3D/4D/4R/6D/6R/9R – Rotalock Service Valve:
• 1-1/18″ Steel • 1-1/8″ Copper (12UNF) • 1-3/8″ Copper (12UNF)
• 1-5/8″ Copper (14UNF) • 1-5/8″ Steel • 1-3/4″ Adapter (12UNC)
Suction & Discharge Shut-off Valve (52V18, 2837119 / 510-0194)
Suction Shut-off Valve (53V18, 2837153)
Suction Shut-off Valve (54V18 Tandem, 2846140)
Suction Shut-off Valve (510-0062-00)
We especially provide suction and discharge service shut-off valves for Carrier semi-hermetic reciprocating compressors.
Carrier Shut-off Valves (06D / 06E / 5H Series)
06D/06E – Service Valve 1-1/8″ ODS (06DA660-064)
06D/06E – Service Valve (06DA660-063, 1-1/8″)
06D/06E – Service Valve (06DA660-065, 1-3/8″)
06D/06E – Service Valve (06EA660-090, 1-5/8″)
06D/06E – Service Valve: Port 1-1/8″×1-1/8″ ODS (14-01042-03)
06D/06E – Service Valve: Port 7/8″×1-1/8″ ODS (14-01042-04)
06D/06E – Service Valve: Port 1.0″×1-1/8″ ODS (06DA660-064)
06E / 5H80 – Discharge & Suction Service Stop (3-1/8″, 3-5/8″)
06E – Service Valve, Bolt Spacing 2-1/8″–3-1/16″ (06EA660-091)
5H – Double Branch Angle Service Valve (3/8 NPT × 3/8 SAE × 1/4″ SAE-Flare, P32TA-150)
5H40/5H46 – Angle Service Valve 1/4 FL–1/4″ MPT (EP23LC090)
5H40/5H46 – Discharge Valve 2-1/8″ (5F660002)
5H40/5H46 – Suction Service Valve 2-5/8″ (06LA660009 / 5H660008)
5H80/5H86/5H120/5H126 – Suction & Discharge Service Valve 4-1/8″ (06LA66011)
Angle Service Valve – 1/2 FL–1/2″ MPT
Angle Service Valve – 3/8 FL–3/8″ MPT
We specialize in supplying suction and discharge shut-off valves for Bitzer semi-hermetic compressors, with a full range of models compatible with many compressor brands:
Direct from factory: Manufactured to strict OEM standards, reliable quality.
In-stock inventory: Common models available for fast delivery.
Competitive pricing: Wholesale support, cost-effective.
Comprehensive range: Compatible with Bitzer, Copeland, Carrier, Frascold, RefComp…
Whether you need suction/discharge valves or other refrigeration compressor parts, we provide the right solution.
Contact us today for the latest prices and technical support!
Keep valve connections clean during installation to prevent debris entry.
Regularly check valve seals to avoid refrigerant leaks.
Always close suction and discharge valves before servicing to ensure 100% safety.
Never disassemble under pressure to prevent injury from high-pressure refrigerant release.
Absolutely not. Without shut-off valves, the risk of refrigerant leakage increases and maintenance becomes much more difficult.
Not frequently under normal conditions, but if the seal is damaged or the valve is difficult to operate, it must be replaced immediately.
Some models may be interchangeable, but most require compatibility with the specific brand and model.
Ensure the system is shut down and valves are closed. If necessary, recover the refrigerant first to guarantee 100% safety for service personnel.
MEDINO has been a leading manufacturer in refrigeration compressor parts field for 10+ years. With experience in electric terminal plates and oil crankcase heaters producing, we can provide high-quality terminal plates and all compressor parts to improve your compressor performance.
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