Pressure gauges for fire pumps according to DIN 14 421 (data sheet 4104)

4104 Diaphragm pressure gauge with vertical diaphragm PsPChg80-3rmBFr -1-25 bar fire service pressure gauge

model PsPChg / without case filling 
case / ring crimped-on ring 
stainless steel
accuracy class / nominal case size 2.5 NCS 80 (3")
wetted material – 3 stainless steel/CuBe/NBR
pressure ranges   0 - 25 bar (0-300 psi) 
-1/+25 bar (-15/300 psi)