MDA JAN-FEB 2019 JAN-FEB 2019 | Page 57

GHM edia B usiness ARTICLE Systemguard® Range of Dynamically Balanced Pressure Stabilization Valves T hese are unique Dynamically Balanced Pressure Stabilization and Control-cum-Safety Relief Valve for maintaining the uniformly controlled Surge-free stabilized pressure at full pressure range, irrespective of the set pressure or maximum working pressure for long-life trouble-free operation of the system. The valves have advantage of perfectly controlling the repeated constant set pressure and stabilization of pressure absorbing all the pressure surges &spikes to maintain Jerk- Free pressure in the system at a uniform pressure in the entire pressure range. Subplate Mounting Pressure Stabilization Valve For example the Valve is set at 225 bar and some operation is carried at a much lower pressure, say 50 bar, suddenly the pressure changes to 100 bar, the Pressure Relief-cum- Stabilization Valve would not allow sudden Spike & Pressure Surges to effect the system, as it instantaneously acts to dampen the pressure surge & the pressure gradually increases to the desired pressure of 100 bar, in-spite of the fact the valve is set at a higher pressure of 225 bar. These valves are available in following Configurations and Capacities: Flow Capacities: Up to 450 LPM Pressure Ratings: Up to 250 bar Mounting options: Sub-plate Mounting or Thread connection Available Off- the-shelf or fast Delivery Offered By: Crane-Bel International Pvt. Ltd. A-57, Sector-16, Noida-201301, India E-mail: [email protected]; www.crane-bel.com Fire safety in a CNC Grinding/EDM machine -Warrier Electronics The Problem- We have seen a spurt in the incidents of fire in a CNC/EDM machine. No doubt, technology has evolved over time, and manufacturers globally have been addressing the fire risk in their machines!. Fire in a CNC/EDM machine can occur instantly and without warning. A hot metal chip, a tool crash, or even a spark of static electricity can ignite the petroleum-based cutting oils used in many of these machines. Oil-based machine fires produce high heat and dense black smoke which makes it difficult to control using handheld fire extinguishers. A machine fire has the potential to quickly spread through mist collectors and along electrical lines and ducting to the building’s structure with catastrophic results. Even when an automatic sprinkler system activates, the cost of water damage often far exceeds the cost of the fire damage; and indirect expenses, such as business interruption, downtime, and lost customers can be many times as costly. The Solution- Firetrace is an automatic fire detection and suppression system for micro environments. Firetrace deploys a patented and UL approved pneumatic detection tube within the hazard area to be protected. In case of a fire, the tube bursts at its hottest point, there by activating the system and discharging the extinguishing 57 | january-february 2019 | gas directly on the fire, thru strategically placed nozzles within the compartment to be protected. A Firetrace system can be fitted to virtually any CNC or EDM machine and will automatically detect and extinguish a fire inside the machine before it can cause appreciable damage. Upon detection of a fire, the system discharges either CO2 or “clean” extinguishing agents such as Dupont™ FM-200© or 3M™ Novec™ 1230 fire protection fluid. These gaseous extinguishing agents are non-conductive, non-corrosive, leave no residue on the machine or work place, and will not contaminate expensive metal working oils or fluids. At the heart of every Firetrace system is the unique, pressurized red Firetrace Detection Tubing. This proprietary polymer tubing is actually a linear pneumatic heat sensor that ruptures when exposed to a fire’s radiant heat. The flexible detection tubing can be easily routed in and around the hazard areas of a CNC or EDM machine, providing fast and reliable fire detection in areas that other detection methods cannot reach. Because Firetrace detects and suppresses a fire at its source – inside the machine – the system reacts far faster than traditional fire suppression methods and reduces or eliminates the collateral damages that they cause. In many cases a machine can be returned to service just minutes after a fire. www.wepune.co.in Global MDA Journal Global MDA Journal