Process Isolation for Gauges, Transmitters & Switches
Winters diaphragm seals isolate pressure instruments from corrosive, viscous, hot, or sanitary process media — protecting your gauges, transmitters, and switches while maintaining accurate measurement
Heavy-duty two-piece industrial diaphragm seals, including NACE-compliant versions with Hastelloy C or Monel diaphragms for sour service
Flow-through and isolation ring seals for slurries, pulp stock, and media that would clog conventional pressure connections
Saddle weld and flush-mount diaphragm seals for direct pipe mounting and sanitary or hygienic connections
Protect your pressure instruments in the toughest process conditions
Protect instruments from acids, chlorides, and sour gas with exotic diaphragm materials
Flow-through and flush designs keep heavy oils, slurries, and stock from clogging taps
Hygienic seal connections for food, beverage, and pharmaceutical service
Isolate gauges and transmitters from heat, vibration, and process upsets
How a diaphragm seal extends instrument life in harsh service
| Feature | Unprotected Instrument | With Winters Diaphragm Seal |
|---|---|---|
| Corrosive Media | Rapid instrument failure | Exotic diaphragm materials protect instrument |
| Plugging Media | Blocked taps, false readings | Flow-through & flush designs stay clear |
| Sour Gas Service | Not suitable | NACE-compliant Hastelloy C / Monel options |
| Sanitary Processes | Contamination risk | Hygienic flush-mount connections |
| Instrument Life | Short in harsh service | Extended — instrument never touches media |
| Maintenance | Frequent replacement | Seal takes the abuse, instrument protected |
Complete seal packages with local support and industry-leading warranty
Common questions about Winters diaphragm seals
A diaphragm seal isolates a pressure instrument from the process media using a flexible diaphragm and a fill fluid. The instrument reads pressure accurately without the process fluid ever touching it — protecting it from corrosion, clogging, freezing, or high temperature.
Use a seal whenever the process media is corrosive, viscous, tends to solidify or plug, is very hot, or requires sanitary isolation. They're common in chemical, oil & gas, mining, pulp & paper, and food & pharmaceutical applications.
Winters offers a full range: heavy-duty 2-piece industrial seals (D70/D71/D74), NACE versions with Hastelloy C or Monel, in-line flow-through seals (D85), isolation rings (D81), saddle weld seals (D90), and flush-mount and sanitary styles.
Yes. Winters offers NACE-compliant 2-piece diaphragm seals with Hastelloy C or Monel diaphragms specifically for sour service common in Alberta oil & gas applications.
Yes. Intrepid can supply complete assembled, filled, and calibrated packages — seal plus gauge, transmitter, or switch — ready to install. This ensures correct fill fluid selection and accurate performance.
A properly specified and filled seal has minimal impact on accuracy. Fill fluid choice, capillary length, and temperature effects matter — Intrepid's in-house engineering support helps you spec the right combination for your application.
All Winters-manufactured products carry an industry-leading 5-year warranty, backed by third-party audited quality assurance.