NOSHOK 1/4" NPT 316 Stainless Steel Diaphragm Seal Set
NOSHOK 1/4" NPT 316 Stainless Steel Diaphragm Seal Set
SKU:NOS-3e2e4a
Isolate pressure instruments efficiently with the NOSHOK 1/4" NPT 316 Stainless Steel Diaphragm Seal Set. Crafted for durability and reliability in diverse applications.
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$129.99
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$129.99
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NOSHOK 1/4" NPT 316 Stainless Steel Diaphragm Seal Set
$129.99
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NOSHOK 1/4" NPT 316 Stainless Steel Diaphragm Seal Set
$129.99
Quantity: 1
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The NOSHOK 1/4" NPT Diaphragm Seal Set is expertly designed to isolate pressure measuring instruments from corrosive or viscous process media. Crafted with a 316 stainless steel upper housing and diaphragm, this set offers durability and reliability. It features a 1/4" NPT instrument connection, a 1/4" NPT process connection, and a 1/8" NPT flushing connection. Ideal for gauges with dial sizes up to 2-1/2" and pressure ranges starting from 100 psig. With a variety of materials available for housing and diaphragm, it suits various applications with an optional flushing port for easy cleaning and media build-up prevention.
Product Specifications
Additional Information Additional Information
Consider instrument size, pressure range, media composition, ambient and operating temperature, and maximum working pressure when selectingCapillaries and cooling elements are available for elevated process temperatures, see options & accessories belowFill 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
Application Application
Water and wastewaterOil and gasPetrochemicalChemical processingIndustrial automationMarineAgricultureSteel fabricationMud pumpingPulp and paperPneumatic
Bottom Housing Material Maximum Pressure And Temperature Limits
Metallic lower housings determined by pressure range of seal type, restricted to temperature range of fill fluid.
Diaphragm Pressure And Temperature Limits Diaphragm Pressure Lim
2,000 psi
Diaphragm Pressure And Temperature Limits Diaphragm Temperature
-10 to 400 ºF
Diaphragm Pressure And Temperature Limits Note For Diaphragm Pre
Metallic diaphragms determined by pressure range of seal type, restricted to temperature range of fill fluid.
Instruments Pressure Max For Gauges 2 12 In Size
0 to 2,500 psig
Instruments Pressure Max For Switches
0 to 2,500 psig
Instruments Pressure Max For Transducers
0 to 2,500 psig
Instruments Pressure Min For Gauges 2 12 In Size
0 to 100 psig
Instruments Pressure Min For Switches
0 to 60 psig
Instruments Pressure Min For Transducers
0 to 60 psig
Limitations Which Apply Are Limitations Which Apply Are
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.
Options And Accessories Cooling Elements
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 temperaturesRecommended for process temperatures above 212 ºFRequires direct mounted systemEffective temperature reductions of 200 ºF depending upon ambient conditionsHigh > 212 ºF process temperature, low < -40 ºF process temperatureAll Stainless Steel construction
Options And Accessories Diaphragm Seal Fill Options
Glycerin (GY) Not recommended for use in vacuum applications.)Silicone (SL)Halocarbon® (HL)Neobee M20 (NB)Mineral Oil (MO)Propylene Glycol (PG)
Options And Accessories Distribution Manifolds
NOSHOK's Distribution Manifolds connect multiple instruments to one diaphragm seal, eliminating multiple connections that lead to possible leak paths.
Options And Accessories Plain And Armored Capillaries
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 armorProtects the instrument from high or low process temperaturesAllows 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 instrumentStandard length 5', others availableInstallation on analog gauges requires a gauge support and gauge adaptor, or other surface mounting provisionsAny 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 knownFilling options for capillariesSilicone - specify to 10 or 20 feet (SL-C)Halocarbon® - specify to 10 or 20 feet (HL-C)
O Ring Temperature Limits O Ring Temperature Limits For Fluoroca
-10 to 400 ºF
O Ring Temperature Limits O Ring Temperature Limits For Nitrile
-40 to 250 ºF
O Ring Temperature Limits O Ring Temperature Limits For Polytetr
-400 to 400 ºF
Prop 65 Warnings Prop 65 Warnings
WARNING: This product can expose you to chemicals including Nickel, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov
Specifications Diaphragm Displacement
400 mm³
Specifications Diaphragm Material
316 Stainless Steel
Specifications Diaphragm Size
1.28 in
Specifications Flushing Connection Size
1/8 in
Specifications Instrument Connection Size
1/4 in
Specifications Instrument Gauge Size
2-1/2 in
Specifications Lower Housing Connection Size
1/4 in | 1/2 in | 3/4 in | 1 in | 1-1/4 in | 1-1/2 in
Specifications Process Connection Size
1/4 in
Specifications Upper Housing Material
316 Stainless Steel