Variable-area flow meter GMT

for liquidsclamp-on

Part of the Platon GMT Variable Area flowmeter family,models GMTB and GMTS are brass or Stainless Steel tube flowmeters with female screwed connections. With 1/2”, 1” and 2” BSP/NPT threaded fittings standard, the meters are ideal for arduous industrial service as an alternative to large glass tube flowmeters. They have particular advantages for gas or liquid flow measurement at high pressures and temperatures, where the fluids are opaque or dark coloured or to provide higher operational security for dangerous or toxic materials. The VA meter principle used in the Platon GMT flowmeter measures the position of a float in a precision-machined tapered tube. The float rises with the flow up the taper until the upthrust from the flow balances with the weight of the float. A magnet, electron beam welded into the float casing, drives the external meter indication over a 100mm scale typically displaying a 10:1 flow range. Options available on the GMTB/GMTS include GMTA) flow alarm outputs for high or low adjustable set points and electronic 4-20mA flow transmitter (GMTX) outputs. All of these are available with CENELEC intrinsically safe approval. For low-pressure Natural gas flow measurement, models are available with minimal line pressure loss.