Watts Water Technologies 263AP Pressure Regulator

Description:

The Watts 263AP Pressure Regulator is a 1/2 inch 3-way pressure reducing regulator designed to maintain controlled downstream pressure in water and No. 2 fuel oil piping systems, with an adjustable pressure range of 20–175 PSI and a maximum working pressure of 300 PSI. Commonly installed in beverage dispensing equipment, paint spraying systems, ice machines, humidifiers, drinking fountains, laboratory equipment, and industrial process machinery requiring accurate low-flow 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 reliable pressure management and system protection.

Applications:

The Watts 263AP Pressure Regulator is widely used in beverage dispensing systems, food service equipment, paint spray booths, ice cube machines, humidification systems, laboratory process equipment, water treatment skids, instrumentation panels, commercial appliances, manufacturing machinery, industrial fluid handling systems, packaging equipment, OEM assemblies, and specialty processing equipment. Its 3-way design and oversized orifice provide accurate downstream pressure control while 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 consistent pressure regulation is critical for equipment performance, product quality, and operational reliability.

Technical Specifications:

• Brand: Watts
• Product Type: 3-Way Pressure Regulator
• Series: 263AP
• Connection Size: 1/2 in. NPT Female
• Pressure Adjustment Range: 20–175 PSI (1.4–12.1 Bar)
• Maximum Working Pressure: 300 PSI
• Regulator Type: Pressure Reducing Regulator
• Valve Style: 3-Way
• Body Material: Lead-Free 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. 3-Way Low Pressure Gauge Port
• Connection Type: Female NPT Threaded
• Adjustment Method: Tee Handle
• Maximum Operating Temperature: 140°F (60°C)
• Minimum Operating Temperature: 0°F (-18°C)
• Service Media: Water and No. 2 Fuel Oil
• Feature: Oversized Orifice Design
• Factory Pressure Setting: 75 PSI

Common Replacements:

• Watts LF263AP 1/2" Pressure Regulator
• Watts LF26A 1/2" Pressure Regulator
• Watts SS263AP 1/2" Stainless Steel Pressure Regulator