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  • Intended for corrosive or viscous pressure media
  • Designed for applications where typical metallic lower housings cannot withstand process media
  • Can be used for remote mounting of pressure instrument(s) with capillary, see options & accessories below
  • Utilizes a replaceable diaphragm clamped between the flanged housings with an o-ring seal to create a leak-free union
  • Process connection sizes from 1/4" NPT through 1-1/2" NPT
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Type 10L Reduced Pressure, Non-Metallic Lower, Bolted, Replaceable Diaphragm Seals

1/4" NPT Instrument Connection, 316 Stainless Steel, 1-1/4" NPT Process Connection, Polyvinyl Chloride (PVC) Type 10L Diaphragm Seal with Polytetrafluoroethylene (PTFE) Diaphragm and Polytetrafluoroethylene (PTFE) O-Ring
Type 10L Reduced Pressure, Non-Metallic Lower, Bolted, Replaceable Diaphragm Seals

1/2" NPT Instrument Connection, 316 Stainless Steel, 1/2" NPT Process Connection, Polyvinylidene Difluoride (PVDF) Type 10L Diaphragm Seal with Polytetrafluoroethylene (PTFE) Diaphragm and Polytetrafluoroethylene (PTFE) O-Ring
Description N/A
  • Intended for corrosive or viscous pressure media
  • Designed for applications where typical metallic lower housings cannot withstand process media
  • Can be used for remote mounting of pressure instrument(s) with capillary, see options & accessories below
  • Utilizes a replaceable diaphragm clamped between the flanged housings with an o-ring seal to create a leak-free union
Type N/A Diaphragm Seal
Style N/A Replaceable Diaphragm Seal
Process Connection N/A National Pipe Thread (NPT)
Seal Type N/A Threaded with replaceable diaphragm. Flanged available on request.
O-Rings Material N/A Polytetrafluoroethylene (PTFE)
Pressure [Max] N/A
Lower Housing Material N/A Polyvinyl Chloride (PVC) N/A Polyvinylidene Fluoride (PVDF)
Upper Housing Material N/A 316 Stainless Steel
Diaphragm Material N/A Polytetrafluoroethylene (PTFE)
Process Connection Size N/A 1-1/4 in N/A 1/2 in
Instrument Connection Size N/A 1/4 in N/A 1/2 in
Instrument Type N/A Gauges, Transducers, Switches
Instrument Gauge Size N/A 2-1/2 to 6 in
Pressure [Min] for Gauges 2-1/2 to 6 in. Size N/A 0 to 30 psig
Pressure [Min] for Transducers N/A 0 to 30 psig
Pressure [Min] for Switches N/A 0 to 30 psig
Pressure [Max] for Gauges 2-1/2 to 6 in. Size N/A 0 to 200 psig
Pressure [Max] for Transducers N/A 0 to 200 psig
Pressure [Max] for Switches N/A 0 to 200 psig
Upper Housing Type N/A Non-Continuous Duty
Diaphragm Size N/A 3.0 in
Diaphragm Displacement N/A 3.2 mL
Lower Housing Connection Size N/A 1/4 in1/2 in3/4 in1 in1-1/4 in1-1/2 in
Lower Housing Connection Type N/A National Pipe Thread (NPT)
Bolting Material N/A Zinc-Plated Steel
Optional Bolting Material N/A Stainless Steel
O-Ring Temperature Limits for Nitrile Butadiene Rubber (NBR) Material N/A -40 to 250 ºF
O-Ring Temperature Limits for Polytetrafluoroethylene (PTFE) Material N/A -400 to 400 ºF
O-Ring Temperature Limits for Fluorocarbon (FKM) Material N/A -10 to 400 ºF
Diaphragm Pressure Limits for Polytetrafluoroethylene (PTFE) Material N/A 2,000 psi
Diaphragm Pressure Limits for Fluorocarbon (FKM) Material N/A 2,000 psi
Diaphragm Temperature Limits for Polytetrafluoroethylene (PTFE) Material N/A -40 to 400 ºF
Diaphragm Temperature Limits for Fluorocarbon (FKM) Material N/A -10 to 400 ºF
Note for Maximum Pressure and Temperature Limits Bottom Housing Material N/A Metallic lower housings determined by pressure range of seal type, restricted to temperature range of fill fluid.
Maximum Pressure Limits for Glass Transition Temperature (Tg), Tetoron Cotton (TC) Bottom Housing Material N/A 200 psi
Maximum Pressure Limits for Polyvinylidene Fluoride (PVDF) Bottom Housing Material N/A 200 psi
Maximum Pressure Limits for Polyvinyl Chloride (PVC) Bottom Housing Material N/A 80 psi125 psi200 psi
Maximum Pressure Limits for Polypropylene (PP) Bottom Housing Material N/A 200 psi
Maximum Temperature Limits for Glass Transition Temperature (Tg), Tetoron Cotton (TC) Bottom Housing Material N/A 150 ºF
Maximum Temperature Limits for Polyvinylidene Fluoride (PVDF) Bottom Housing Material N/A 180 ºF
Maximum Temperature Limits for Polyvinyl Chloride (PVC) Bottom Housing Material N/A 74 ºF125 ºF150 ºF
Maximum Temperature Limits for Polypropylene (PP) Bottom Housing Material N/A 140 ºF
Note for Diaphragm Pressure and Temperature Limits N/A Metallic diaphragms determined by pressure range of seal type, restricted to temperature range of fill fluid.
Instrument Connection Type N/A National Pipe Thread (NPT)
Warranty N/A 1 yr
Prop 65 Warnings N/A
WARNING: This product can expose you to chemicals including Lead and Nickel, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
Application N/A
  • Water and wastewater
  • Oil and gas
  • Petrochemical
  • Chemical processing
  • Industrial automation
  • Marine
  • Agriculture
  • Steel fabrication
  • Mud pumping
  • Pulp and paper
  • Pneumatic
Limitations Which Apply Are N/A These units must be operated within the catalogued environmental and application parameters. Determination of failure will be made by NOSHOK, Inc.'s equipment and personnel or a certified test facility specializing in this type of evaluation. Gauge failures determined to be caused by over-range, incompatibility with environment or product media and abuse will not be considered under this warranty. NOSHOK, Inc. will, at its discretion, repair or replace the working parts of the damaged gauge without cost to the customer.

In keeping with and for purposes of product and/or manufacturing process improvements, NOSHOK, Inc. reserves the right to make design changes without prior notice.
Additional Information N/A
  • Process connection sizes from 1/4" NPT through 1-1/2" NPT
  • Consider instrument size, pressure range, media composition, ambient and operating temperature, and maximum working pressure when selecting
  • Fill fluid must be compatible with process media; i.e. Glycerin may become volatile in conjunction with a strong oxidizing agent such as chlorine, forms of oxygen or peroxide and nitric acids
Cooling Elements N/A
  • 1/4" NPT x 1/4" NPT Cooling Element (1/4" NPT x 1/4" NPT-CE)
  • 1/2" NPT x 1/2" NPT Cooling Element (1/2" NPT x 1/2" NPT-CE)
  • Works in combination with diaphragm seal to isolate instrument from high media temperatures
  • Recommended for process temperatures above 212 ºF
  • Requires direct mounted system
  • Effective temperature reductions of 200 ºF depending upon ambient conditions
  • High >212 ºF process temperature, low < -40 ºF process temperature
  • All Stainless Steel construction
Diaphragm Seal Fill Options N/A
  • Glycerin (GY) Not recommended for use in vacuum applications.)
  • Silicone (SL)
  • Halocarbon® (HL)
  • Neobee M20 (NB)
  • Mineral Oil (MO)
  • Propylene Glycol (PG)
Distribution Manifolds N/A NOSHOK's Distribution Manifolds connect multiple instruments to one diaphragm seal, eliminating multiple connections that lead to possible leak paths.
Plain and Armored Capillaries N/A
  • 5 ft. SS Armored Flexible Capillary, 1/4" NPT (AC-02-02-5) per ft. adder (AC-02-02-#)
  • 5 ft. SS Armored Flexible Capillary, 1/2" NPT (AC-04-04-5) per ft. adder (AC-04-04-#)
  • Stainless Steel capillaries available with or without Stainless Steel armor
  • Protects the instrument from high or low process temperatures
  • Allows remote mounting of pressure instrument(s)
  • Select the shortest capillary length possible, as changes in ambient temperature conditions may significantly affect the accuracy and response time of the instrument
  • Standard length 5', others available
  • Installation on analog gauges requires a gauge support and gauge adaptor, or other surface mounting provisions
  • Any level difference between the instrument and the seal will result in a pressure indication error; make sure to compensate for the level difference during calibration of the diaphragm seal assembly if the level difference is known
  • Filling options for capillaries
    • Silicone - specify to 10 or 20 feet (SL-C)
    • Halocarbon® - specify to 10 or 20 feet (HL-C)
Note N/A PTFE O-Rings standard with all other diaphragms