Watts 263A 3-50 Three-Way Pressure Regulator.

Description:

The Watts 263A 3-50 Regulator is a 3/8 inch three-way pressure regulator designed to provide accurate downstream pressure control for water and No. 2 fuel oil systems, with an adjustable pressure range of 3 to 50 PSI. Commonly installed in beverage dispensing equipment, paint spraying systems, humidifiers, ice machines, laboratory equipment, process control systems, and OEM machinery requiring reliable low-pressure regulation. Maintenance technicians, OEMs, equipment manufacturers, and system integrators use this regulator for equipment repairs, pressure control upgrades, replacement projects, and new installations requiring consistent pressure regulation and equipment protection.

Applications:

The Watts 263A 3-50 Regulator is widely used in beverage dispensing systems, food service equipment, paint spray booths, humidification systems, laboratory process equipment, water treatment skids, instrumentation panels, industrial wash systems, commercial appliances, manufacturing machinery, packaging equipment, OEM assemblies, and specialty processing equipment. Its three-way relieving design automatically vents excess downstream pressure while maintaining stable operating conditions, helping protect sensitive components from pressure fluctuations and excessive inlet pressure. The regulator is commonly specified in commercial facilities, industrial plants, maintenance operations, and process control systems where accurate pressure regulation is critical for equipment performance, process consistency, and system reliability.

Technical Specifications:

• Brand: Watts
• Model: 263A 3-50
• Product Type: Three-Way Pressure Regulator
• Connection Size: 3/8 in. NPT Female
• Pressure Adjustment Range: 3–50 PSI
• Maximum Working Pressure: 300 PSI
• Regulator Type: Relieving Pressure Regulator
• Valve Style: 3-Way
• Body Material: Brass
• Disc Material: Buna-N Stainless Steel
• Diaphragm Material: Reinforced Buna-N
• Stem Material: Stainless Steel
• Spring Material: Stainless Steel
• Spring Cage Material: Aluminum
• Gauge Port: 1/4 in. Low Pressure Gauge Port
• Connection Type: Female NPT Threaded
• Adjustment Method: Tee Handle
• Maximum Operating Temperature: 140°F (60°C)
• Service Media: Water and No. 2 Fuel Oil
• Feature: Oversized Orifice Design
• Factory Pressure Setting: 15 PSI
• Application: Commercial and Industrial Pressure Regulation

Common Replacements:

• Watts LF263A 3/8" Pressure Regulator
• Watts 26A 3/8" Pressure Regulator
• Parker Watts R119 Series Pressure Regulator