Guardian Equipment G3900LF Water Tempering Valve, 81 GPM Capacity

Description

Thermostatic mixing valve for use with multiple eye washes or multiple shower or safety stations, accommodating water flows from 3 - 90 GPM. Internal cold water bypass allows for continued cold water delivery upon hot water failure. Dial thermometer indicates shower/eye wash temperature. Integral supply check stops prevent crossover of supplies. Valve is factory assembled and tested prior to shipment. APPLICATION: Tempering valve to blend hot and cold water to deliver tepid water. Valve has flow capacity of 3.0 to 81 gallons per minute (GPM). Valve can be used with single installation of emergency showers and safety stations, and with multiple installations of emergency shower, eyewash, eye/face wash, dual purpose eyewash/drench hose, drench hose and safety station units. TEMPERATURE CONTROL: Valve has bimetallic thermostat that senses incoming water temperature and automatically blends water to 85�F (29�C). High temperature limit stop is set to 90�F (32�C). Valve has dial thermometer on outlet to monitor temperature of delivered water. Note: Valve may need to be adjusted when installed based on incoming water temperature. Refer to "Installation Instructions" for further information. FAIL SAFE: In event of restriction or failure of hot water supply, internal bypass allows valve to deliver cold water to emergency unit. In bypass mode, valve will deliver 40 GPM of cold water at 30 PSI flow pressure. In event of loss of cold water supply, valve will close and not deliver water. FLOW CAPACITY: Refer to chart below for flow capacity of valve at specified pressure drops: System Pressure Drop (PSI) 5 10 15 20 25 30 35 40 Flow Rate (GPM) 53 64 72 81 90 99 108 117 System Pressure Drop (bar) .3 .7 1.0 1.4 1.7 2.4 2.4 2.8 Flow Rate (Liters per Minute) 201 242 273 307 341 374 409 443 SUPPLY PRESSURE: 30 PSI minimum supply pressure is required for proper operation of valve. Maximum supply pressure is 125 PSI.