Reotemp’s Flanged Offline Non-Metallic Diaphragm Seals are designed with an upper and lower housing bolted together with a Teflon or Viton diaphragm bonded to the upper housing. This design allows for the lower housing to be removed for easy cleanout of the seal chamber while still maintaining the system fill. The Teflon and Viton diaphragm are ideal for protecting the pressure instrument from corrosive process fluid. Removable Lower Housing Design for Easy Cleanout Wide Variety of Plastic and Metallic Lower Housing Materials Highly Sensitive and Corrosion Resistant Diaphragm High Displacement Diaphragms Ideal for Mechanical Differential Pressure Gauges and Low Pressure Gauges

REOTEMP’s High Accuracy and High Displacement Threaded Diaphragm Seals are ideal for applications where high sensitivity or large fluid displacement is key to proper instrument performance. Designed with a diaphragm welded to the upper housing, the lower housing is detachable from the seal body allowing for easy cleanout of the process cavity without losing system fill. The High Accuracy Threaded Diaphragm Seal is most commonly mounted to Smart Transmitters (Gauge, Differential, and Absolute pressure), low pressure capsule gauges, mechanical DP gauges, and mechanical pressure switches. Extra Large 4.1″ Diaphragm for Maximum Sensitivity Wide Variety of Wetted Material Options 100% Helium Leak Tested Diaphragm Welds Easy Cleanout Design with Multiple Flush Port Options

REOTEMP’s High Accuracy Flanged Diaphragm Seals are ideal for applications where high sensitivity or large fluid displacement is key to proper instrument performance. Designed with a diaphragm welded to the upper housing, the lower housing is detachable from the seal body allowing for easy cleanout of the process cavity without losing system fill. The High Accuracy Flanged Diaphragm Seal is most commonly mounted to Smart Transmitters (Gauge, Differential, and Absolute pressure), low pressure capsule gauges, mechanical DP gauges, and mechanical pressure switches. Extra Large 4.1″ Diaphragm for Maximum Sensitivity Wide Variety of Wetted Material Options 100% Helium Leak Tested Diaphragm Welds Easy Cleanout Design with Multiple Flush Port Options

Reotemp’s W9FR two-piece flanged flush-face seal keeps the process stream sweeping clean across the diaphragm to prevent solids buildup. Its insert-style, all-welded construction lets the diaphragm and sealing face be fabricated from an alloy other than the flange—ideal when Tantalum, Hastelloy, Monel, or other exotic wetted materials are required. The rotating flange further simplifies bolt alignment during installation. Multi-piece Seal Design Bolts Directly to Process Flange Center Instrument Exit Commonly Supplied with Flush/Calibration Ring Ideal for Gauge or Differential Pressure Transmitters

Reotemp’s W9FF flanged flush-face seal is a one-piece, all-welded assembly. The diaphragm is integral with the flange, giving a crevice-free surface that keeps process flow sweeping across to prevent solids buildup. It is the most economical choice for 316 SS service, and can also be supplied in solid Hastelloy, Monel, Alloy 20, and other exotic alloys when enhanced corrosion resistance is required. One-piece Seal Design Bolts Directly to Process Flange Center or Side Instrument Exit Commonly Supplied with Flush/Calibration Ring Ideal for Gauge or Differential Pressure Transmitters

The Extended Diaphragm Seal is ideal for highly viscous and dry powder applications. Its unique design eliminates dead space in piping. It is often used for flush mounting in thick-walled vessels and is available in standard and custom lengths.

Reotemp offers a full line of USA made instrument valves and manifolds. Whether your need is to safely remove instrumentation, pressure check or calibrate your process, test differential gauges/transmitters, or throttle flow in the system Reotemp has a valve to suit your application.

Flushing rings (or bleed rings) are used with flanged diaphragm seals for flushing or venting the process fluid or to provide access for field calibration. Machined from Solid Bar Stock Pressure Ratings Up to ANSI Class 2500 For Use with W9FF and W9FR Diaphragm Seals (Raised Face)

Pigtail siphons are used in steam service to protect the instrument from direct exposure to high temperature steam. Most pressure measurement devices have maximum working temperatures between 100 and 250°F, so when measuring fluids that exceed those temperatures cooling elements must be applied in order to properly measure. In this video we explain the use of pigtail siphons for steam applications, capillary and cooling towers for hot liquid and gas applications, and when to properly use diaphragm seals. We also answer questions like: Can I use a pigtail siphon in non-steam application? Can I use a cooling tower in steam applications? and more.

Reotemp Cooling Towers protect pressure instruments from extremely hot process media without the pain and hassle of remote mounting the instrument. It is specifically designed to mount above a diaphragm seal or thread directly into the process. Reotemp’s unique design can reduce the process temperature by up to 700°F!