Contact Us

Ultra-High Purity Pressure Gauges, Process Piping and Flow Control Products

Holy Instruments is a manufacturer of Ultra-High Purity (UHP) products. 

  • Pressure Gauges; Center and Lower Back Mount, SS 316L + VAR, Double Melt in ranges -30 to +4,000psi
  • UHP Tubing, 1/8″ up to 4″ in <10Ra in seamless and welded
  • UHP Fittings: 45/90 Elbows, Tees, Crosses, Reducers, End Caps 
  • KF “Small” 1/2″ to 2″ Fittings and Flanges, SS 304 (Avail. 316/316L)
  • ISO “Large” 2-1/2″ to 20″ Fittings and Flanges, SS 304 (Avail. 316/316L)

Explore Our Products Below

Holy Instruments, UHP Pressure Gauge, ultra-high purity pressure gauge

UHP Pressure Gauges

Holy Instruments pressure gauges are specially designed for the ultra-high purity gas distribution systems used in industries such as; • Semiconductor • Electronic • Aerospace • Biotechnology • Pharmaceutical • Medical Applications

UHP Tube and Fittings

UHP Tubing in 1/8" to 6", Bright annealed, 10μin Ra electropolished (EP) ID, seamless and welded tubing and fittings for use in ultra-high purity liquid and gas distribution systems.

KF ISO Fittings

KF & ISO Flanges & Fittings

The KF and ISO series of flanges and fittings include large vacuum components having interface dimensions defined by the International Standards Organization. "Small"-KF in 1/2" to 2", SS 304 and "Large"-ISO in 2-1/2" to 20", SS 304