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Noshok 25-911-200-psi/kg/cm2 1/4 NPT Back Conn 2.5 SS Case Filled Gauge
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Type 29 High Volumetric Displacement, Non-Replaceable Diaphragm Seals-Noshok - Image 1
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Type 29 High Volumetric Displacement, Non-Replaceable Diaphragm Seals-Noshok

SKU: TYPE 29

Original price was: $363.85.Current price is: $268.60.

125 in stock

In Stock And Avalable For immediate Delivery
Last updated: April 20, 2026
Condition: New
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Noshok Type 29 High Volumetric Displacement, Non-Replaceable Diaphragm Seals

Type 29 High Volumetric Displacement, Non-Replaceable Diaphragm Seals

  • An off-line seal with a threaded connection and all welded, all metallic housing design that does not utilize an o-ring or gasket
  • Can be used for remote mounting of pressure instrument(s) with capillary, see options & accessories below
  • Designed with a larger diameter diaphragm for higher displacement capability
  • A variety of upper and lower housing and diaphragm materials are available to suit most applications
  • A flushing port is available to clean wetted areas and prevent process media build up

Specifications

Type

 Diaphragm Seal

Style

 Non-Replaceable Diaphragm Seal

Instrument Connection Size

 1/4 in

Process Connection Type

 National Pipe Thread (NPT)

Upper Housing Material

 316 Stainless Steel

Diaphragm Material

 316 Stainless Steel

Process Connection Size

 1/4 in

Seal Type

 Threaded with welded diaphragm

Lower Housing Connection Size

 1/4 in1/2 in3/4 in1 in

Lower Housing Connection Type

 National Pipe Thread (NPT)

Lower Housing Flushing Port

 Optional 1/8″ NPT and 1/4″ NPT

Upper Housing Type

 Continuous Duty

Diaphragm Size

 2.1 in

Diaphragm Displacement

 1.5 mL

Instrument Connection Type

 National Pipe Thread (NPT)

Warranty

 1 yr

Instruments

Instrument Type

 Gauges, Transducers, Switches

Pressure [Min] for Gauges 2-1/2 to 4-1/2 in. Size

 0 to 30 psig

Pressure [Min] for Transducers

 0 to 30 psig

Pressure [Min] for Switches

 0 to 30 psig

Pressure [Max] for Gauges 2-1/2 to 4-1/2 in. Size

 0 to 2500 psig

Pressure [Max] for Transducers

 0 to 2500 psig

Pressure [Max] for Switches

 0 to 2500 psig

O-Ring Temperature Limits

O-Ring Temperature Limits for Nitrile Butadiene Rubber (NBR) Material

 -40 to 250 ºF

O-Ring Temperature Limits for Polytetrafluoroethylene (PTFE) Material

 -400 to 400 ºF

O-Ring Temperature Limits for Fluorocarbon (FKM) Material

 -10 to 400 ºF

Diaphragm Pressure and Temperature Limits

Diaphragm Pressure Limits for Polytetrafluoroethylene (PTFE) Material

 2000 psi

Diaphragm Pressure Limits for Fluorocarbon (FKM) Material

 2000 psi

Diaphragm Temperature Limits for Polytetrafluoroethylene (PTFE) Material

 -40 to 400 ºF

Diaphragm Temperature Limits for Fluorocarbon (FKM) Material

 -10 to 400 ºF

Note for Diaphragm Pressure and Temperature Limits

 Metallic diaphragms determined by pressure range of seal type, restricted to temperature range of fill fluid.

Bottom Housing Material Maximum Pressure and Temperature Limits

Maximum Temperature Limits for Polyvinylidene Fluoride (PVDF) Bottom Housing Material

 180 ºF

Maximum Pressure Limits for Glass Transition Temperature (Tg), Tetoron Cotton (TC) Bottom Housing Material

 200 psi

Maximum Pressure Limits for Polyvinylidene Fluoride (PVDF) Bottom Housing Material

 200 psi

Maximum Pressure Limits for Polyvinyl Chloride (PVC) Bottom Housing Material

 80 psi125 psi200 psi

Maximum Pressure Limits for Polypropylene (PP) Bottom Housing Material

 200 psi

Maximum Temperature Limits for Glass Transition Temperature (Tg), Tetoron Cotton (TC) Bottom Housing Material

 150 ºF

Maximum Temperature Limits for Polyvinyl Chloride (PVC) Bottom Housing Material

 74 ºF125 ºF150 ºF

Maximum Temperature Limits for Polypropylene (PP) Bottom Housing Material

 140 ºF

Note for Maximum Pressure and Temperature Limits Bottom Housing Material

 Metallic lower housings determined by pressure range of seal type, restricted to temperature range of fill fluid.

Description

Noshok Type 29 High Volumetric Displacement, Non-Replaceable Diaphragm Seals

Type 29 High Volumetric Displacement, Non-Replaceable Diaphragm Seals

  • An off-line seal with a threaded connection and all welded, all metallic housing design that does not utilize an o-ring or gasket
  • Can be used for remote mounting of pressure instrument(s) with capillary, see options & accessories below
  • Designed with a larger diameter diaphragm for higher displacement capability
  • A variety of upper and lower housing and diaphragm materials are available to suit most applications
  • A flushing port is available to clean wetted areas and prevent process media build up

Specifications

Type

 Diaphragm Seal

Style

 Non-Replaceable Diaphragm Seal

Instrument Connection Size

 1/4 in

Process Connection Type

 National Pipe Thread (NPT)

Upper Housing Material

 316 Stainless Steel

Diaphragm Material

 316 Stainless Steel

Process Connection Size

 1/4 in

Seal Type

 Threaded with welded diaphragm

Lower Housing Connection Size

 1/4 in1/2 in3/4 in1 in

Lower Housing Connection Type

 National Pipe Thread (NPT)

Lower Housing Flushing Port

 Optional 1/8″ NPT and 1/4″ NPT

Upper Housing Type

 Continuous Duty

Diaphragm Size

 2.1 in

Diaphragm Displacement

 1.5 mL

Instrument Connection Type

 National Pipe Thread (NPT)

Warranty

 1 yr

Instruments

Instrument Type

 Gauges, Transducers, Switches

Pressure [Min] for Gauges 2-1/2 to 4-1/2 in. Size

 0 to 30 psig

Pressure [Min] for Transducers

 0 to 30 psig

Pressure [Min] for Switches

 0 to 30 psig

Pressure [Max] for Gauges 2-1/2 to 4-1/2 in. Size

 0 to 2500 psig

Pressure [Max] for Transducers

 0 to 2500 psig

Pressure [Max] for Switches

 0 to 2500 psig

O-Ring Temperature Limits

O-Ring Temperature Limits for Nitrile Butadiene Rubber (NBR) Material

 -40 to 250 ºF

O-Ring Temperature Limits for Polytetrafluoroethylene (PTFE) Material

 -400 to 400 ºF

O-Ring Temperature Limits for Fluorocarbon (FKM) Material

 -10 to 400 ºF

Diaphragm Pressure and Temperature Limits

Diaphragm Pressure Limits for Polytetrafluoroethylene (PTFE) Material

 2000 psi

Diaphragm Pressure Limits for Fluorocarbon (FKM) Material

 2000 psi

Diaphragm Temperature Limits for Polytetrafluoroethylene (PTFE) Material

 -40 to 400 ºF

Diaphragm Temperature Limits for Fluorocarbon (FKM) Material

 -10 to 400 ºF

Note for Diaphragm Pressure and Temperature Limits

 Metallic diaphragms determined by pressure range of seal type, restricted to temperature range of fill fluid.

Bottom Housing Material Maximum Pressure and Temperature Limits

Maximum Temperature Limits for Polyvinylidene Fluoride (PVDF) Bottom Housing Material

 180 ºF

Maximum Pressure Limits for Glass Transition Temperature (Tg), Tetoron Cotton (TC) Bottom Housing Material

 200 psi

Maximum Pressure Limits for Polyvinylidene Fluoride (PVDF) Bottom Housing Material

 200 psi

Maximum Pressure Limits for Polyvinyl Chloride (PVC) Bottom Housing Material

 80 psi125 psi200 psi

Maximum Pressure Limits for Polypropylene (PP) Bottom Housing Material

 200 psi

Maximum Temperature Limits for Glass Transition Temperature (Tg), Tetoron Cotton (TC) Bottom Housing Material

 150 ºF

Maximum Temperature Limits for Polyvinyl Chloride (PVC) Bottom Housing Material

 74 ºF125 ºF150 ºF

Maximum Temperature Limits for Polypropylene (PP) Bottom Housing Material

 140 ºF

Note for Maximum Pressure and Temperature Limits Bottom Housing Material

 Metallic lower housings determined by pressure range of seal type, restricted to temperature range of fill fluid.