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302-303

302-303
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CASHCROFT Trust the shield.® When isolation of the process from an instrument is required, Ashcroft offers a comprehensive line of diaphragm seals. Seal types include threaded, flanged, inline threaded, in-line flanged, in-line socket weld, in-line butt weld, saddle and sanitary seals. Also available is a complete offering of isolation or iso-rings and isolation or iso-spools. APPLICATIONS • Elevated process temperatures • Corrosive service • Isolation of the process for safety • Suspended solids in the process • Sanitary connections • Replacement of process dead leg • Ease of cleaning between batches FEATURES • An elastomeric or Teflon® diaphragm is clamped securely between the top and bottom housing with clamp rings, ensuring a positive seal. • A fill/bleed connection is standard, which permits filling the seal and instrument simultaneously after evacuation and allows the fill to flow into the completed unit. • Available Teflon® diaphragm offers corrosion resistance to most acids, caustics, alkalies, keytones, hydrocarbons and alcohols. • Available Viton® or Kalrez diaphragms for low pressure instruments from 10 inches of water. • Rugged, flexible and fatigue resistant for superior service life. • Continuous-duty design will prevent loss of process fluid if pressure instrument is removed or fails. SPECIFICATIONS Model Number: Type 300, 301, 302, 303 Process Connection Size: See Table A Diaphragm Material: See Table B Bottom Housing Materials: See Table C Filling Fluid: See Table E OPTIONS Code 316 stainless steel YT top housing Stainless steel clamp SE rings and flanged ring - includes 300 stainless steel clamping bolts (1500 psi max) 300 series stainless SB steel clamping bolts (max pres is 1500 psi) Pipe plugs for flushing PU connections - pipe plugs are available in the same materials as bottom housings per Table C 5000 psi pressure rating HP - (Type 100 only) threaded inlet only, no flushing connection (metal diaphragm only) Welded instrument to DU diaphragm seal Dual flushing connections DB (12 NPT) (Limited to 2" thru 3" flanged seals Ring joint (Flanged seal only) RJ Flat face (Flanged seal only) FF Clean for gaseous oxygen 6B or strong oxidizing agent applications. 1. From Table A...select TYPE NUMBER based on process connection, process connection size and diaphragm type/construction. (e.g., Threaded/1"/capsule-code-10-300) 2. From Table B...select DIAPHRAGM MATERIAL. (e.g., 316L stainless steel-code S) 3. From Table C...select BOTTOM HOUSING MATERIAL. (e.g., 316 stainless steel-code S) 4. From Table D...select INSTRUMENT CONNECTION size. (e.g., V4 NPT-code 02T) 5. From Table E...select FILLING FLUID, if diaphragm seal will be attached to instrument. (e.g., Glycerin-code CG) Coded order: 10-300TT-02T-CG Ashcroft Inc., 250 East Main Street, Stratford, CT 06614 USA Tel: 203-378-8281 • Fax: 203-385-0408 email: info@ashcroft.com • www.ashcroft.com All specifications are subject to change without notice. All sales subject to standard terms and conditions. © Ashcroft Inc. 2016 Re

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TYPE 300 SERIES SEAL TYPES Type 300 -Threaded 14, 12, 34, 1 NPT C ASHCROFT Trust the shield* Type 301 -Threaded with flushing connection 14, 12, 34, 1 NPT Table A - Process Connection/Type Number Pressure Ratings—All 2500 psi except flanged seals are per ASME B 16.5, temperature limit determined by diaphragm, bottom housing and/or filling fluid. Table B - Diaphragm Material Table C - Housing Materials (2) Viton diaphragm in Types 302 and 303 limited to 2"-150 class flange. (4) Maximum Press.: 500 psi, Temp. Limits: -40/350°F (5) Use on applications where NACE standard MR-01-75 2003 is...

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C ASHCROFT Trust the shield* Ashcroft Inc., 250 East Main Street, Stratford, CT 06614 USA Tel: 203-378-8281 • Fax: 203-385-0408 email: info@ashcroft.com • www.ashcroft.com All specifications are subject to change without notice. All sales subject to standard terms and conditions. © Ashcroft Inc. 2016 Rev. 01/16

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C ASHCROFT Trust the shield* DIMENSIONS Type 303 - Flanged 11/," 2," 3" (raised face only) one piece bottom housing with flushing connection - A - All specifications are subject to change without notice. All sales subject to standard terms and conditions. © Ashcroft Inc. 2016 Rev. 01/16 Ashcroft Inc., 250 East Main Street, Stratford, CT 06614 USA Tel: 203-378-8281 • Fax: 203-385-0408 email: info@ashcroft.com • www.ashcroft.com

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