Product Name: Oil Filled Pressure Gauge Model NO.: BSCT0263 Indicating Pressure Reference: General Pressure Gauge Features of Measurement Medium: Corrosion Resistant Installation Structure: Direct Mounting Function: Local Indication Type Connection Type: Radial Direction Structure: Spring Pressure Gauge Application: Industrial Display: Pointer Accuracy: 1.6 Type: Resistance to Vibration Measuring Range: Full Range Product Description BS Series(S Class)Stainless Steel 1.4301 (AISI 304) Case, brass movement & connectionTechnical DataSize :2.5"(63mm) , 3"(75mm), 4"(100mm), 6"(150mm)Measuring Range :compound, vacuum 76cmHg (30"Hg) up to 15,000 psi (1,000bar ) Dial :Aluminum Window :polycarbonate, glass Pointer :AluminumRing :Stainless Steel 1.4301 (AISI 304)Case :Stainless Steel 1.4301 (AISI 304)Filling :Glycerin or SiliconeMovement :brassSocket :brassBourdon Tube :phosphor bronze C-tube for vacuum to 1,000 psi,Spiral tube wound for 1,000 psi to 15,000 psiConnection :1/8", 1/4", 3/8", 1/2" NPT, PT, BSP,G threadMounting :bottom and center back with surface, flush mount and U-clampAccuracy :2.5", 3" ( CL1.6 ), 4", 6" (CL1.0)Operating emperature Limit :-20 ~ 60°C( -4 ~ 140°F )Application :water, air, gas, oil and working media not corrosive to wetted parts S class is our super quality product, we are customized to world top 500 medical devical devices company, We are promise the pressure cycles will higher than EU standard (EN837-1) 120%.