Should the draft fall more than 40% below the set point for more than 12 seconds, it will deactivate the appliances to prevent a potentially hazardous situation. The system monitors the draft condition at any time and has an integrated safety function. When draft is produced by natural means a) hot air surrounding the boiler increases draft b) fans can control the flue gas flow c) a short stack will increase draft d) the diameter of the stack will improve the draft e)cooler air surrounding the boiler increases draft. It will create and maintain a pre-set draft prior to or immediately after the appliance fires. The draft regulator controls the combustion process by changing the air supply to the boiler. The system is activated when there is a call for heat. The Chimney Automation System maintains a perfect, constant draft for the appliances by modulating the chimney fan capacity. Outstanding inventions include the metal bellows as a reliable dynamic seal and integral positioner. Numerous inventions and innovative solutions guarantee SAMSON’s constant growth and on-going success. It can be used in conjunction with almost any type of appliance and fuel, whether it is forced draft, atmospheric or condensing design. SAMSON, a market leader in control valves for industrial processes, has been successful in instrumentation and controls for over 100 years. By controlling the draft completely, we can reduce the need for combustion air and can apply the system to virtually any stack design.ĮXHAUSTO’s Chimney Automation System (CASV) is for installation and use with multiple and/or modulating boilers and water heaters. Today’s constant pressure chimney automation systems have the ability to control, monitor and maintain pre-set draft requirements by varying the flow.

Their design makes them rather inefficient and limits their application to certain types of chimney designs. The rudimentary mechanical draft assist is a single speed fan that delivers a pre-set volume of air and utilizes a barometric damper for relief should the mechanical draft become too strong. Fixed speed power vent systems also waste energy by not being able to adjust to actual conditions.Ī new system with pressure and flow control switches and a variable speed fan match vent needs to conditions minimizing energy losses. With pneumatic actuators installed, the furnace draft pressure (black line) varied by as. This leads to wasted energy and higher installation costs. Furnace draft pressure varied during the period by 45 millimeters of water (mm-H 2 O). Gravity / barometric pressure systems must be over-sized in order to function in the worst conditions. Too much draft results in lost thermal energy from the boiler and higher electrical usage by the vent fan. Together with the SAMSON subsidiaries AIR TORQUE, CERA SYSTEM, KT-ELEKTRONIK, LEUSCH, PFEIFFER, PRECOGNIZE, RINGO, SED, STARLINE, UBIX, VDH PRODUCTS, and VETEC, SAMSON offers a product portfolio to meet all industrial process requirements.Boilers must maintain a proper flue draft for efficient combustion too little draft can result in condensation, CO formation, flue gas spillage, and soot formation. The SAMSON Automatic Draft Regulator is installed in the boiler body tapping. Solutions from the SAM DIGITAL product line have been added for smart networking of components and systems in process automation to take on the challenges posed by the growing digitization. See page 12 for more information on the HS Auto-Mix system.

Sophisticated transmitters, controllers, and automated systems are also part of the SAMSON product range. Inconsistent or uncontrolled supply make-up air / combustion air. SAMSON manufactures control valves, butterfly valves, and modular automation units for use in all areas of process engineering as well as self-operated regulators for simple control systems with a constant reference variable. ENERVEX commercial controls give you precise and safe control of your commercial exhaust and ventilation processes, including protection against: Erratic draft or pressure. Outstanding inventions include the metal bellows as a reliable dynamic seal and integral positioner attachment for increased reliability and safety. SAMSON, a market leader in control valves for industrial processes, has been successful in instrumentation and controls for over 100 years.

Samson boiler draft control