3/8" NPT. AUTOMATIC VENT LIMITING D
The Maxitrol 3704 is a 3/8" NPT automatic vent limiting device designed for use with the 325-5A and 325-56AL series of gas-fired, slow-response BFPs. It is intended for use in installations where there is only one BFP operating at a time. The vent limiting device will limit and restrict the raise of the gas pressure on the loaded zone to match the rise of the unloaded zone, increasing dwell time and providing better efficiency when firing
Maxitrol 3704 Co. Brass, 3/8" NPT Vent Limiter, Use with 325-5A, 325-56AL Maxitrol automatic vent limiting devices (AVL) are a simple effective method for controlling and monitoring the temperature in your equipment. The AVLs are a positive, automatic method of limiting the amount of air flow entering any exhaust system or manifold which provides temperature control at all times.
Maxitrol 3704 Co. Brass, 3/8" NPT Vent Limiter, Use with 325-5A, 325-56AL ** It automatically controls the air and carbon monoxide being exhausted and is therefore used primarily for furnaces. There is a manual override to override automatic operation. The vent limiter is installed after the draft hood and before the chimney. Depending upon the application requirements on the furnace you can use either a single or double vent limiter.
With its sleek brass construction and cast iron handle, the Maxitrol 3704-Co. is a classically-styled automatic vent limiting damper. Maxitrol’s automatic vent limiting dampers are used for controlling and limiting exhaust flow when ventilation during fire conditions is required. The 3704-Co. features a cast iron handle that is recessed into the body of the device to provide a 1" clearance to combustibles. The device is designed with one or more ports that
This automatic brass vent limiting device automatically regulates incoming air to a desired temperature range for an unlimited number of cycles. The Maxitrol 3704 has a pivot switch to sense high and low limits, is easy to install, and is adjustable to compensate for increased draft as fuel burns off. When used with thermocouples, the dial is calibrated in degrees F. Note: Wired for 115 VAC, 600 Watt or 750 Watt burners. See model 3521 for use with 400 W or 500
Maxitrol 3704 manual and automatic vent limiting devices are used to control hood draft under certain cooking conditions. The D slide valve indicates when it is safe to open the cooking lid, and automatically shuts off the gas flow when the temperature drops to pre-set level. Solenoid is UL approved.
Maxitrol 3700 series vent limiters are highly accurate, economical, and easily installed. The 3/8 NPT vent limiter has a max. working pressure of 150 psi with the 350 series water-sealed regulators which offers a full 75 psi cut off point with the other regulators.