TPI September 2020

Products & developments

Bacharach introduces MGS-402 dual-channel gas detection controller for toxic applications

in an IP66 enclosure. Upstream Modbus connectivity enables remote configuration and communication with building management systems. The MGS-402 has a built-in audible alarm and high-visibility visual alarm that eliminates the need for an external horn/strobe in close proximity. The remote silence input enables silencing the alarm from outside the monitored environment. Configuration of the MGS- 402 is simple and intuitive, reducing installation time. Bacharach www.mybacharach.com

Bacharach has announced the MGS-402 gas detection controller for refrigerant, toxic and combustible gas detection applications. The system is designed for safety compliance in mechanical rooms, cold storage facilities, walk-in freezers, and cold room applications to -40° F/C. The MGS-402 is part of the MGS- 400 series gas detectors that connect through Modbus to up to two remote MGS-410 gas detectors at up to 1000ft (305m). The MGS-402 is powered by 110-240V AC and provides three 10A output relays (fault, low alarm, high alarm) to initiate auxiliary ventilation or restrict refrigerant flow, two

analogue outputs for interface to a BMS or fire/safety panel packaged

New technical document addresses suitability of CPVC piping systems

mechanical joints, such as grooved fittings. This can help to prevent accidental fires during construction. “Many people are not aware of the significant differences between PVC and CPVC piping materials. CPVC is polyvinyl chloride that has been chlorinated via a free radical chlorination reaction, initiated by ultraviolet light during the manufacturing process. The chlorine added to PVC gives CPVC higher temperature performance and improved fire and corrosion resistance. CPVC pressure pipe is a distinct material from PVC pressure pipe with additional capabilities and is accepted in all model plumbing and mechanical codes for the plumbing and mechanical applications noted earlier.” Topics discussed in the new PPI document include: CPVC material definition and properties, use in high- temperature applications, resistance to potable water disinfectants, use in mixed-material systems that contain copper materials and CPVC and design

UL 1821), chilled water and hydronic heating and cooling systems,” explained Lance MacNevin, P. Eng, director of engineering for PPI’s building and construction division. Chlorinated polyvinyl chloride (CPVC) is a high-temperature plastic pressure piping material that was introduced for potable plumbing applications more than sixty years ago. CPVC tubing and pipe are sold in straight lengths and used with moulded fittings. Advantages of CPVC piping systems include safety of potable water; resistance to corrosion, tuberculation, and deposits; chlorine and chloramine resistance; and toughness to survive jobsite installations. Another inherent advantage is that no flame is used for joining, since pipes and fittings are joined using solvent cement or

Plastics Pipe Institute Inc (PPI), has published a new guide related to the use of CPVC piping systems in commercial buildings. Available on the PPI’s website, TN-62 ‘Suitability and Fitness of CPVC Piping Systems for Commercial Building Applications’ describes material advantages and capabilities that should be considered when designing CPVC systems for commercial plumbing and mechanical systems. PPI is the major trade association representing all segments of the plastic pipe industry. “PPI TN-62 describes how CPVC pipe and fitting systems are suitable for use in commercial applications such as hot- and cold-water distribution, fire protection (13D, 13R and some light hazard NFPA 13 uses, when listed to

issues when using CPVC. Plastics Pipe Institute Inc www.plasticpipe.org

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TUBE PRODUCTS INTERNATIONAL September 2020

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