Diaphragm Seals

• 
• Product Code: Diaphragm Seals

Diaphragm Seal

•  A Diaphragm Seal is a device consisting of a diaphragm welded (or firmly clamped) between two suitable flanges and properly gasketed to prevent leakage of liquid or gas. It is a dividing membrane or a thin partition, acts as a barrier to a liquid or gas that may tend to clog or corrode the sensing element of a pressure instrument

D10 PVC 2-PIECE DIAPHRAGM SEAL

APPLICATIONS:

·    Provides an economical solution to protect instruments from corrosion and clogging

·    Used to isolate and protect a pressure instrument on ultra-pure or highly corrosive fluid lines

·  Can be used with liquids such as demineralized water, sulphuric acid, hydrochloric acid and caustic gases (such as corrosive air and ammonia), where such  fluids will corrode metal instruments

·         Review of chemical compatibility is available upon request

D15 THREADED FLUSH MOUNT DIAPHRAGM SEAL

APPLICATIONS:

·    Suitable for any process where freezing or solidification of the pressure media is a concern

DESCRIPTION & FEATURES:

·  Constructed with a welded diaphragm placed at the end of the male NPT connection, eliminating the normal diaphragm chamber where solidification of the process media may render the seal inoperable

·         Rugged and suitable for the most severe process applications

·         ASME B40.100 compliant

D20 SANITARY DIAPHRAGM SEAL

APPLICATIONS:

·   D20 may be attached to any Winters all SS gauge for sanitary installations.

DESCRIPTION & FEATURES:

·   Meets the requirements of dairy, food, beverage, chemical and pharmaceutical industries

·   3A approved

·   ASME B40.100 compliant

D30 HIGH PRESSURE DIAPHRAGM SEAL

APPLICATIONS:

·   Offers protection for pressure instruments (gauges and transmitters) from corrosive, contaminated or viscous media

·   Ideally suited for applications where space limitations exist

DESCRIPTION & FEATURES:

·   Compact, lightweight and economical

·   Constructed of AISI 316 stainless steel and is welded together into a one piece unit

·   ASME B40.100 compliant

D40 MEDIUM DUTY DIAPHRAGM SEAL

APPLICATIONS:

·   Ideally suited for applications where space limitations exist

·   Primarily utilized to protect gauges and transmitters from corrosive media

·   Utilized in many OEM applications

DESCRIPTION & FEATURES:

·   Compact (one piece), lightweight and economical

·    ASME B40.100 compliant

D44 FLANGED DIAPHRAGM SEAL PTFE

APPLICATIONS:

·   Used in industrial applications such as oil refineries, pulp and paper mills and chemical plants

DESCRIPTION & FEATURES:

· “Continuous use” seals–backing plate will prevent diaphragm from rupturing if pressure sensing instrument fails. Pressure will be held until instrument is replaced

·   Various sizes and housing materials available

·   ASME B40.1 compliant

D44 FLANGED DIAPHRAGM SEAL WELDED

APPLICATIONS:

·   Used in industrial applications such as oil refineries, pulp and paper mills and chemical plants

DESCRIPTION & FEATURES:

· “Continuous use” seals–backing plate will prevent diaphragm from rupturing if pressure sensing instrument fails. Pressure will be held until instrument is replaced

·  Various sizes and housing materials available

·  ASME B40.100 compliant

D46 FLANGED FLUSH MOUNT SEAL

APPLICATIONS:

·  Oil refineries, pulp and paper mills, chemical plants

·  Where media buildup is a concern

DESCRIPTION & FEATURES:

·  One-piece design–no internal gaskets or o-rings

·  Diaphragm is flush to the gasket sealing surface so no internal cavities for media buildup

·  Various sizes available

·  ASME B40.100 compliant

D70 HEAVY DUTY 2-PIECE INDUSTRIAL DIAPHRAGM SEAL

APPLICATIONS:

·  Where the process fluid is corrosive or viscous and would clog instrument internals/solidify within the pressure gauge, switch or transmitter

DESCRIPTION & FEATURES:

·  Two piece construction and designed to withstand even the most severe process applications

· “Continuous use” seals–backing plate will prevent diaphragm from rupturing if pressure sensing instrument fails. Pressure will be held until instrument is   replaced

· Diaphragm is separable for servicing and is available with a 1/8” NPT or 1/4” NPT flushing connection for removing any material which may clog the process connection

· Standard diaphragm is constructed of AISI 316L stainless steel and welded to the upper chamber of the seal for pressures 30 psi (200 kPa) and above; optional Viton diaphragm available for ranges from 30” Hg Vacuum (-100 kPa) up to 100 psi (690 kPa). Others diaphragms available

·  FKM is highly recommended for applications less than 10 psi