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RIGCHINA provides the most reliable Process Pressure Gauges, Industrial Pressure Gauges, Stainless Pressure Gauges, Test Gauges,Commercial Gauges, Digital Pressure Gauges,Diaphragm Seals, Temperature gauges and switches. PRESSURE GAUGE APPLICATION:FOR MEASUREMENT OF STEAM,AIR,OIL,WATER AND OTHER PRESSURE MEDIA WHICH HAVE NO EFFECT ON BRONZE AND BRASS DIAL SIZE 1.5"(40mm)DIAMETER DIAL SIZE 2.0"(50mm)DIAMETER DIAL SIZE 2.5"(63mm)DIAMETER DIAL SIZE 3.0"(76mm)DIAMETER DIAL SIZE 3.5"(88mm)DIAMETER DIAL SIZE 4.0"(100mm)DIAMETER DIAL SIZE 4.5"(113mm)DIAMETER DIAL SIZE 6.0"(150mm)DIAMETER DIAL SIZE PRODUCT TYPE OPTIONS A:Steel black case, steel black bezel, glass window, brass internal and connection dry B:Brass polished case, screw in polycarbonate window, brass internal and connection, dry C:Steel chrome plated case, steel chrome plated bezel, plastic window, brass internal and connection,dry D:Steel black case, steel black bezel, plastic window, brass internal and connection dry E:Steel chrome plated case, snap on plastic window, brass inside and connection,dry F:Steel chrome plated case, screw in polycarbonate window, brass internal and connection, dry G:Steel gold plated case, screw in polycarbonate window, brass internal and connection, dry H:Stainless steel case, stainless steel roll ring (or bayonet threaded ring), polycarbonate window,stainless steel internal and connection, liquid filled Y:Steel black case, chrome plated bezel, plastic window, brass internal and connection dry S:Steel black case, snap on plastic window, brass internal and connection, dry T:Steel black case, screw in polycarbonate window, brass internal and connection, dry P:ABS case, snap on plastic window, brass internal and connection, dry U:ABS case, snap in plastic window, brass internal and connection, dry R:Plastic case, screw in polycarbonate window, brass interal and connection, dry Q:Steel black case, steel black bezel, glass window, stainless steel tube and mechanism, steel chrome plated socket and connection,dry (Ammonia service) J:Stainless steel case, stainless steel bezel, glass window, stainless steel internal and connection, dry M:Stainless steel case, stainless steel bezel, glass window, brass internal and connection, dry I:Black steel case, stainless steel roll ring, polycarbonate window, brass internal and connection liquid filled K:Stainless steel case, stainless steel roll ring, polycarbonate window, brass internal and connection; liquid filled L:ABS case, plastic welded window, brass internal and connection,liquid filled O:Steel black case, steel black bezel, plastic window, brass internal and connection, dry, with steel chrome plated gas test boby (Ges test gauge) W:Steel black case, snap on plastic window, brass internal and connection, dry, with brass water hose(Water test gauge) X:Steel case, steel bezel, glass window, brass internal and connection, dry , with rubber hose or ABS case,snap on plastic window,brass internal and connection,dry, with ABS air valve (Tyre pressure gauge) V:Flre extinguisher pressure gauge Z:(Magnetic) Electric contact pressure gauge CONNECTIONS L:LOWER MOUNT CONNECTION B:CENTER BACK CONNECTION R:LOWER MOUNT CONNECTION WITH BACK FLANGE V:CENTER BACK CONNECTION WITH FRONT FLANGE U:CENTER BACK CONNECTION WITH U-CLAMP F:LEFT CONNECTION G:RIGHT CONNECTION H:HIGHER CONNECTION PRESSURE INLET THREAD SIZES 2:1/2" NPT,2B:I/2"BSP:2Z:I/2" BSPT THREAD SIZE 4:1/4" NPT,4B:I/4"BSP:4Z:I/4"BSPT THREAD SIZE 8:1/8" NPT,8B:I/8" BSP:8Z:I/8" BSPT THREAD SIZE 3:3/8" NPT,3B:3/8" BSP:3Z:3/8" BSPT THREAD SIZE 5:5/16" NPT,5B:5/16"BSP:5Z:5/16" BSPT THREAD SIZE 7:7/16" NPT,7B:7/16"BSP:7Z:7/16 " BSPT THREAD SIZE X:None of the above(please details) PRESSURE RANGE DENOTES FULL SCALE RANGE IN PSI MEASUREMENT -15PSI-0,0-15PSI,0-30PSI,0-60PSI.0-1 50PSI,0-160PSI.0-200PSI,0-300PSI,0-400PSI,0-600PSI,0-1000PSI, 0-1500PSI,0-2000PSI.0-3000PSI,0-4000PSI,0-5000PSI,0-6000PSI.0-7500PSI.0-10000PSI