Series 69, 51, 55, Liquid Relief, By-Pass Over Protection Pressure Relief Valves

Description:

Aquatrol’s Series 69 is an industry-standard valve for liquid relief, liquid by-pass and over protection. Series 51 and 55 are generally used where size or spacing is a factor and in high-pressure settings.

Features:

• Ruggedly constructed
• Metal-to-metal/precision lapped seating
• Closed hex cap
• Factory set and sealed (also can be field adjusted)
• Variety of inlet and outlet options
• Fixed blowdown
• Closed bonnet design to minimize leakage

Applications:

• Liquid relief and overprotection
• By-pass relief
• Continuous relief
• Pressure regulation
• Pumping systems, tanks and hydraulics
• Fluid lines
• Oil fields and chemical processing

Sizes: ¼” to 3”

Pressure and Temperature Limits:

• Pressures to 600#
• Temperatures to 450 degrees F°

Options:

• Wheel handle
• Variety of inlet and outlets
• Stainless steel inserts for corrosive or higher pressure protection
• Polishing and chrome plating