Suitable for heavy operating conditions. Resistant to vibrations and pulsating pressures when liquid filled The series main contain follow general specification. Case Sizes: 1.5", 2", 2.5", 4", 6" Pressure Range: With range from 30inHg(vacuum) through 15000psi Bourdon Tube: With SUS316 material, range from vacuum through 1000psi in C-form, soft soldered, range above 1500psi in helical, silver soldered Movement: With SUS304 stainless steel standard material Cases and Ring: With SUS304 staunless steel material, the ring which retains the window is bayonet threaded type, dull or polished case and ring Liquid Filling: With or without liquid, 99.5%glycerine. Others available Connection: With SUS304 stainless steel standard material, bottom mounting and backside mounting available, 1/8", 1/4", 1/2", 3/8"PT, NPT, BSP are the standard threads, available for suitable dial diameter Dials: Dials are uniformly graduated and have highly legible black markings. In single scale(psi, bar Kpa, Mpa, or kg/cm2) or dual scales as request Windows(Lens): PC, tempered glass or safety glass Pointer: With a fixed pointer or with micro adjustable Accuracy: Standard by ASME B40.1 Options: Many different styles and materials are offered, open gauges with and without device and solid front or back flange gauges or with U-clamp. Custom dial face, special connections, e-mail us or our distributor your logo or draw for special connection