Diaphragm Pressure Seals for Assured Protection and Media Compatibility

Diaphragms

Protects Pressure Instrumentation from Corrosive or Viscous Fluids, Clogging, and In-Line Freezing of the Process Media
Glycerine Fill Fluid is Standard, with Optional Fill Fluids Available
Displacement of the Liquid Fill in the Pressure Seal Through Movement of the Diaphragm Transmits Process Pressure Directly to the Pressure Instrumentation

Pressure Gauges - View related products

Description

OMEGA ® Diaphragm Pressure Seals afford greater protection to sensitive pressure instrumentation from the damaging effects of corrosives, slurries, or viscous fluids that may be present in your pressure line. A variety of designs and styles are available to suit your application requirements.

100 Series
Distinguished by its 3-part design, the 100 series includes a PTFE coated diaphragm capsule which threads into the top housing, assuring positive sealing at all surfaces and minimizing the possibility of any leakage of the filling fluid from the system. The diaphragm capsule can be replaced without replacing the top housing. Continuous duty is assured: should the sensor be removed from the diaphragm seal, the process fluid is prevented from escaping. Easy cleaning and inspection of the diaphragm can be achieved during shutdown conditions by detaching the top and bottom housings. This design eliminates the need to refill the seal or recalibrate the instrument when the top and bottom housings are separated. A FKM O-ring, compatible with all standard fill fluids, and a PTFE back-up ring make a seal between the diaphragm capsule and the top housing. The diaphragm is PTFE coated to provide an integral gasket, thus assuring a leaktight connection between the diaphragm and bottom housing. The 100 Series consists of a diaphragm capsule with a corrugated, metallic diaphragm edge welded to a sturdy back-up plate which threads into the top housing. Once secured, the top housing can be bolted to the bottom housing. The bottom housing has a standard 1/2 inch NPT fitting which easily threads to the process piping.

102 Series
Virtually identical to the 100 Series in both performance and design, the 102 Series includes a standard #150 raised face flange in place of a threaded female NPT process fitting. For more rugged applications, an optional #300 raised face flange is also available.

202 Series
The 202 Series diaphragm seal features a bonded PTFE diaphragm and a PTFE #150 raised face flange. This all-PTFE wetted construction provides ruggedness and maximum corrosion resistance to acids, caustics, alkalis, ketones, hydrocarbons, and alcohols. In the new 202 design, the PTFE diaphragm is bonded to the top housing, allowing the top housing and instrument to be removed without losing the fill fluid.

OMEGA ® Diaphragm Pressure Seals are available to be used in conjunction with the following OMEGA ® pressure instrumentation:

Pressure Transducer
PX602, PX603, PX605, PX673, PX675

Dial Pressure Gauges
PGH, PGJ Series

Pressure Switches
PSW-300, PSW-370, PSW-400

Diaphragm seals must be ordered as an assembly with the appropriate pressure transducer, gauge or switch listed above. Consult Pressure Engineering Department for pricing and availability.

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Part Number/ Desc.

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Description

100 Series Diaphragm Pressure Seals with 1/4" Fitting

-1/4100SS1/2CG

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Availability:

316L SS Diaphragm, 316 SS Bottom Housing

-1/4100PM1/2CG

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Availability:

K-Monel Diaphragm, Monel Bottom Housing

-1/4100GG1/2CG

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Availability:

Hastelloy B Diaphragm and Bottom Housing

-1/4100HH1/2CG

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Availability:

Hastelloy C Diaphragm and Bottom Housing

-1/4100SV1/2CG

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Availability:

316L SS Diaphragm, PVC Bottom Housing

102 Series Diaphragm Pressure Seals with #150-RF Flange, 1-1/2" Fitting

-11/2102SS1/2150RFCG

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Availability:

316L SS Diaphragm, 316 SSF Bottom Housing

-11/2102PM1/2150RFCG

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Availability:

K-Monel Diaphragm, Monel 400 Bottom Housing

-11/2102GG1/2150RFCG

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Availability:

Hastelloy B Diaphragm and Bottom Housing

-11/2102HH1/2150RFCG

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Availability:

Hastelloy C Diaphragm and Bottom Housing

202 Series Diaphragm Pressure Seals with PTFE Seals with #150-RF Flange

-1202TT1/2150RFCG

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Availability:

1" Process Connection, PTFE construction

-11/2202TT1/2150RFCG

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Availability:

1-1/2" Process Connection, PTFE construction

-2202TT1/2150RFCG

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Availability:

2" Process Connection, PTFE construction

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† All amounts shown in AUD