Precision Instrument Company is a full line Diaphragm Seal Manufacturer. We Manufacture all sizes, connections and materials, Stocking the most commonly used types. We also attach instruments and Fill Systems giving you many options with quick deliveries.
Mini Seals	Medium Seals		Low Pressure		Full Size
Best low cost for small instruments	Best low cost for medium to large instruments		Large area diaphragm for low pressures and Vacuum Applications		Most Versatile for all applications
Flanged Connection	Tri-Clamp Sanitary		Flow Through		Saddle Mount
Raised Face or Flat Face Pressure from 150# to 2500#	Food and Pharmaceutical Designed for Easy Cleaning		Tri-Clamp, Flanged or Threaded Straight Through flow designs eliminate dead zones in piping		Weld-in Saddle Mount
Special Seals		Components & Accessories		Filling / Calibrating
Male NPT – Plug Type, Flush Diaphragm, Button Type or other custom designs		Upper & Lower Housings, Diaphragms, Gaskets or O-Rings, Bolting, etc. SS armored Capillary Made to Length With connections matching Gauges & Seals		Using any fill fluid suitable for the application. (See separate page for available fills)