Pressure Regulating Valve - Defrost Differential - Sporlan - DDR, (O)LDR

Parker Sporlan Type DDR and (O)LDR) differential pressure regulating valves provide a pressure differential during defrost for reverse flow to occur. These are typically used on supermarket Refrigeration systems.

Technical Specifications

Model Number:

Please Configure Part for Model Number

Application:

Defrost Differential Pressure Regulating Valves

Pressure Rating:

0.3/ 3.4 bar, 5/ 50 psi

Connection Type:

ODF Solder

Product Type:

DDR-20, LDR-16, LDR-21, OLDR-16, OLDR-21

Coil Type:

MKC-2, OMKC-1, MKC-1

Operation Type:

Differential Operation when De-energized, Full Open when De-energized

Port Size:

1-5/16″, 1″

Connection Size:

1-1/8 to 2-1/8 inch

Flow Rate:

N/A

Maximum Operating Pressure:

400 psig

Maximum Operating Temperature:

121.111 °C

Minimum Operating Temperature:

N/A

Maximum Pressure Setting:

N/A

Mounting Type:

N/A

Seal Material:

N/A

Actuation Type:

N/A

Body Material:

Brass

Configuration:

N/A

Function:

Regulate defrost differential pressure

Full Product Description

The Parker Sporlan Type DDR differential pressure regulating valves have a cast iron painted body with copper connections and the (O)LDR) differential pressure regulating valves have a brass body with copper connections. These valves are adjustable. The DDR creates a differential pressure between its inlet (discharge) pressure and the receiver pressure to allow reverse flow during the defrost cycle. The (O)LDR creates a differential pressure between the receiver and liquid header to allow reverse flow during the defrost cycle. Each valve is factory tested to ensure positive leak-free performance.

Markets:
• Refrigeration

Features/Benefits:
• Able to maintain a differential pressure between the defrost header and the liquid header, allowing reverse flow during the defrost cycle.
• Combines a liquid differential valve and a solenoid valve into one component, thus reducing piping costs.
• Ability to adjust the differential setting.
• Design working pressure for the DDR and (O)LDR valves is 400 psi (27.6 bar),

Applications:
• Refrigeration – Supermarket racks

For over 80 years the Sporlan Division of Parker Hannifin has set the industry standard for the development and manufacture of leading edge HVACR components. Our outside technical sales force and application engineering team focuses on refrigeration system applications and troubleshooting for service technicians, distribution channel partners, and original equipment manufacturers.