Parker 101735 Commercial Pressure Regulator Flo-con A8 7/8 Inches Port 1-3/8 Inches Connection A81B

Product Description

The Parker 101735 is a commercial pressure regulator in the Flo-Con A8 series, designed for demanding refrigeration and HVAC system applications. Built with a ductile iron body and brazed copper couplings, this regulator delivers rugged, long-lasting performance in commercial and industrial environments. The A81B model maintains a constant pressure at a control point regardless of fluctuations in load, ambient conditions, or alternate diversions in flow. This makes it a reliable choice for refrigeration contractors, HVAC technicians, and mechanical engineers who need precise pressure control in complex systems. The unit uses an inlet operating style, meaning it regulates pressure on the inlet side of the controlled circuit. Internal equalization is built into the design, which allows the regulator to compensate for pressure drop across the valve port without requiring an external equalizer line. This simplifies installation and reduces the number of field connections needed. The port size is 7/8 inches, equivalent to 22mm, and the connection size is 1-3/8 inches, equivalent to 35mm, making it compatible with standard commercial refrigeration line sets. The pressure rating spans a wide range, from 250 mm-Hg to 27.6 bar, or 10 inch-Hg to 400 psig, covering a broad spectrum of system operating conditions. The electric wide open feature allows the valve to be fully opened electrically, supporting pump-down cycles and system control sequences common in commercial refrigeration. Power options include 110-120VAC at 50/60Hz, 220-240VAC at 50/60Hz, and 208VAC at 60Hz, giving installers flexibility across different electrical service configurations. The unit weighs 11 pounds. Parker Flo-Con A8 regulators are widely used in supermarket refrigeration racks, cold storage facilities, process cooling systems, and large commercial HVAC installations where stable suction or discharge pressure is critical to system efficiency and equipment protection.

• Ductile iron body with brazed copper couplings for durable, leak-resistant construction
• Internally equalized design simplifies installation by eliminating the need for an external equalizer line
• Electric wide open operation supports pump-down cycles and automated system control sequences

Product Highlights

The Parker 101735 Flo-Con A81B pressure regulator provides reliable, constant pressure control for commercial refrigeration and HVAC systems, with wide voltage compatibility and a robust ductile iron body built for long-term service in demanding environments.

Product Information

Standard Information

• Brand: PARKER
• Manufacturer Part Number: 101735

Technical Specifications

• Product Type: A81B
• Operating Style: Inlet
• Equalizer Method: Internally Equalized
• Port Size: 22mm, 7/8 inches
• Connection Size: 35mm, 1-3/8 inches
• Pressure Rating: 250 mm-Hg to 27.6 bar, 10 inch-Hg to 400 psig
• Power Source: 110-120VAC 50/60Hz, 220-240VAC 50/60Hz, 208VAC 60Hz
• Operating Features: Electric Wide Open
• Weight: 11 pounds