Diaphragm Seals

  • noshoklogforproductpage TYPE 10 STANDARD/ 10H ELEVATED PRESSURE BOLTED REPLACEABLE DIAPHRAGM SEALS NOSHOK STANDARD PRESSURE BOLTED REPLACEABLE DIAPHRAGM SEALS are designed to utilize a replaceable diaphragm clamped between the metal housings. They are rated to 2,000 psi with a displacement capability of 3.2 ml. NOSHOK ELEVATED PRESSURE BOLTED REPLACEABLE DIAPHRAGM SEALS are a threaded connection, off-line seal with a replaceable diaphragm. They are designed for high pressure applications and are rated to 5,000 psi. Displacement capability is 1.4 ml.
  • noshoklogforproductpage TYPE 12 SANITARY, CLAMPED-STYLE, ASME-BPE NONREPLACEABLE DIAPHRAGM SEALS NOSHOK SANITARY, CLAMPED-STYLE, ASME-BPE NONREPLACEABLE DIAPHRAGM SEALS feature a flush mount diaphragm and all welded construction, making them ideal for food & beverage, SANITARY, CLAMPED-STYLE, ASME-BPE NONREPLACEABLE DIAPHRAGM SEALS pharmaceutical and sanitary markets. They can accommodate process connection pipes from 1-1/2" through 3" sizes. Their clamped connection allows ease of installation and removal of seal for maintenance and cleaning.
  • noshoklogforproductpage TYPE 25/25H NOSHOK STANDARD PRESSURE NON-REPLACEABLE DIAPHRAGM SEALS utilize an all welded, all metallic housing design, pressure rated to 2,500 psi. The housing and diaphragm are offered in a variety of materials to suit most applications. A flushing port is offered as an option. NOSHOK ELEVATED PRESSURE NON-REPLACEABLE DIAPHRAGM SEALS utilize an all welded, all metallic housing design pressure rated to 5,000 psi. The housing and diaphragm are offered in a variety of materials to suit most applications. A flushing port is offered as an option.
  • noshoklogforproductpage TYPE 29 HIGH VOLUMETRIC DISPLACEMENT NONREPLACEABLE DIAPHRAGM SEALS NOSHOK HIGH VOLUMETRIC DISPLACEMENT NONREPLACEABLE DIAPHRAGM SEALS are an all welded, all metallic housing design that does not utilize an o-ring or gasket. Displacement is limited to 1.5 ml requiring the use of gauges with less than 4-1/2" dial size and Bourdon tube range no lower than 0 psi to 15 psi. Pressure rating is 2,500 psi.
  • noshoklogforproductpage TYPE 40 FLOW-THROUGH ANNULAR STYLE REPLACEABLE DIAPHRAGM SEALS NOSHOK FLOW-THROUGH ANNULAR STYLE REPLACEABLE DIAPHRAGM SEALS are frequently used in abrasive media applications such as slurries, heavy sludges, chemical (synthetic polymers), and diffusers (flow measurement). Process liquid flowing through the pipe exerts pressure onto a flush-mounted flexible inner cylider containing clean, captive liquid; completely isolating instrumentation from the process flow and preventing plugging.
  • 140K Diaphragm Seals for Threaded Off-Line Process Connections All welded - Gasketless Design Process Connection Sizes 1/4inch NPTF or 1/2 inch NPTF Maximum Working Pressure 2000 PSIG (13.80Mpa) @ 100F (38C) Standard 5000 Psig (34.50Mpa) @ 100ºF (38ºC Optional)
    Download Datasheet
  • Standard Features:

    • Standard Pressure Rating with Metal Lower Housing
    • Process Connection Sizes 1/4 inch NPT through 1 1/2 inch NPT
    • Maximum Working Pressure 1,250 to 2,500 PSIG (8.63 to 17.25 Mpa) @ 100ºF (38ºC)
    Download Datasheet
  • Standard Features:

    •  1 inch (25.40mm) and Larger
    • Process Connect Sizes 1, 2 and 3 inches
    • ASME/ANSI Flange Ratings up to 2,500lb
    • Maximum Working Pressure Conforms to Flange Pressure-Temperature Rating per ASME/ANSI B16.5
    • Flange Faces  (125-250Ra Spiral Finish is standard)
    • Raised Face, Flat Face, Ring Type Joint and Special Flange Faces are available
    Download Datasheet
  • Standard Features:

    •  Standard Pressure Rating with Metal Lower Housing 4 inches and larger
    • All Pipe Schedules per ASME/ANSI B16.10 or B36.19
    • Maximum Working Pressure Conforms to Pipe Schedule Ratings as calculated by ASME/ANSI B31.1 Equation "4" @ 100 ºF (38ºC)
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  • Standard Features:

    • Instrument Connection Sizes 1/4"  NPTF OR 1/2" NPTF
    • Maximum Working Pressure Determined by Piping System Clamp Rating
    Download Datasheet
  • Standard Pressure Ratings with Metal Lower Housings Process Connection Sizes 1/4" NPTF  through 1 1/2" NPT Maximum Working Pressure 1000,2000 psig ( 6.9 , 13.80 Mpa) @ 100ºF (38ºC) Download Datasheet
  • Standard Pressure Ratings with Metal Lower Housings Process Connection Sizes 1/4 NPTF  through 1 1/2 NPT Maximum Working Pressure 1000, 2000 psig ( 6.9 , 13.80 Mpa) @ 100ºF (38ºC)
    Download Datasheet

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