NOSHOK, INC.
NOSHOK, INC.
1010 W. Bagley Road
Berea, OH 44017
Phone: 440.243.0888
Fax: 440.243.3472
Website: www.noshok.com
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  • Designed to isolate the pressure measuring instrument from corrosive or viscous process media
  • Utilize an all welded, all metallic housing design to eliminate potential leak paths
  • For use with gauges with dial sizes of 2-1/2" and smaller, and pressure ranges no less than 100 psig
  • Housing and diaphragm offered in a variety of materials to suit most applications
  • A flushing port is available to clean wetted areas and prevent process media build up
Type 25/25H Standard and Elevated Pressure, Non-Replaceable Diaphragm Seals
Unit of Measure
1 2 3 

Part Number

Description

Instrument Connection Size

Diaphragm Material

Process Connection Size

Pressure [Max] for Transducers

25-02H-H-02H-1F N/A 1/4" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/4" National Pipe Thread (NPT) Instrument Connection, 1/8" NPT Flushing Connection, Type 25 Diaphragm Seal N/A 1/4 in N/A Hastelloy C-276 N/A 1/4 in N/A 0 to 2,500 psig
25-02H-H-02H-1F-P N/A 1/4" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/4" National Pipe Thread (NPT) Instrument Connection, 1/8" NPT Flushing Connection, Type 25 Diaphragm Seal w/ Optional Flush Port N/A 1/4 in N/A Hastelloy C-276 N/A 1/4 in N/A 0 to 2,500 psig
25-02H-H-02H-2F N/A 1/4" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/4" National Pipe Thread (NPT) Instrument Connection, 1/4" NPT Flushing Connection, Type 25 Diaphragm Seal N/A 1/4 in N/A Hastelloy C-276 N/A 1/4 in N/A 0 to 2,500 psig
25-02H-H-02H-2F-P N/A 1/4" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/4" National Pipe Thread (NPT) Instrument Connection, 1/4" NPT Flushing Connection, Type 25 Diaphragm Seal w/ Optional Flush Port N/A 1/4 in N/A Hastelloy C-276 N/A 1/4 in N/A 0 to 2,500 psig
25-04H-H-04H N/A 1/2" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/2" National Pipe Thread (NPT) Instrument Connection, 1/8" NPT Flushing Connection, Type 25 Diaphragm Seal N/A 1/2 in N/A Hastelloy C-276 N/A 1/2 in N/A 0 to 2,500 psig
25-04H-H-04H-1F N/A 1/2" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/2" National Pipe Thread (NPT) Instrument Connection, 1/8" NPT Flushing Connection, Type 25 Diaphragm Seal N/A 1/2 in N/A Hastelloy C-276 N/A 1/2 in N/A 0 to 2,500 psig
25-04H-H-04H-1F-P N/A 1/2" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/2" National Pipe Thread (NPT) Instrument Connection, 1/8" NPT Flushing Connection, Type 25 Diaphragm Seal w/ Optional Flush Port N/A 1/2 in N/A Hastelloy C-276 N/A 1/2 in N/A 0 to 2,500 psig
25-04H-H-04H-2F N/A 1/2" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/2" National Pipe Thread (NPT) Instrument Connection, 1/4" NPT Flushing Connection, Type 25 Diaphragm Seal N/A 1/2 in N/A Hastelloy C-276 N/A 1/2 in N/A 0 to 2,500 psig
25-04H-H-04H-2F-P N/A 1/2" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/2" National Pipe Thread (NPT) Instrument Connection, 1/4" NPT Flushing Connection, Type 25 Diaphragm Seal w/ Optional Flush Port N/A 1/2 in N/A Hastelloy C-276 N/A 1/2 in N/A 0 to 2,500 psig
25-02H-H-04H N/A 1/4" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/2" National Pipe Thread (NPT) Instrument Connection, 1/8" NPT Flushing Connection, Type 25 Diaphragm Seal N/A 1/4 in N/A Hastelloy C-276 N/A 1/2 in N/A 0 to 2,500 psig
25-02H-H-04H-1F N/A 1/4" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/2" National Pipe Thread (NPT) Instrument Connection, 1/8" NPT Flushing Connection, Type 25 Diaphragm Seal N/A 1/4 in N/A Hastelloy C-276 N/A 1/2 in N/A 0 to 2,500 psig
25-02H-H-04H-1F-P N/A 1/4" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/2" National Pipe Thread (NPT) Instrument Connection, 1/8" NPT Flushing Connection, Type 25 Diaphragm Seal w/ Optional Flush Port N/A 1/4 in N/A Hastelloy C-276 N/A 1/2 in N/A 0 to 2,500 psig
25-02H-H-04H-2F N/A 1/4" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/2" National Pipe Thread (NPT) Instrument Connection, 1/4" NPT Flushing Connection, Type 25 Diaphragm Seal N/A 1/4 in N/A Hastelloy C-276 N/A 1/2 in N/A 0 to 2,500 psig
25-02H-H-04H-2F-P N/A 1/4" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/2" National Pipe Thread (NPT) Instrument Connection, 1/4" NPT Flushing Connection, Type 25 Diaphragm Seal w/ Optional Flush Port N/A 1/4 in N/A Hastelloy C-276 N/A 1/2 in N/A 0 to 2,500 psig
25-04H-H-02H N/A 1/2" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/4" National Pipe Thread (NPT) Instrument Connection, 1/8" NPT Flushing Connection, Type 25 Diaphragm Seal N/A 1/2 in N/A Hastelloy C-276 N/A 1/4 in N/A 0 to 2,500 psig
25-04H-H-02H-1F N/A 1/2" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/4" National Pipe Thread (NPT) Instrument Connection, 1/8" NPT Flushing Connection, Type 25 Diaphragm Seal N/A 1/2 in N/A Hastelloy C-276 N/A 1/4 in N/A 0 to 2,500 psig
25-04H-H-02H-1F-P N/A 1/2" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/4" National Pipe Thread (NPT) Instrument Connection, 1/8" NPT Flushing Connection, Type 25 Diaphragm Seal w/ Optional Flush Port N/A 1/2 in N/A Hastelloy C-276 N/A 1/4 in N/A 0 to 2,500 psig
25-04H-H-02H-2F N/A 1/2" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/4" National Pipe Thread (NPT) Instrument Connection, 1/4" NPT Flushing Connection, Type 25 Diaphragm Seal N/A 1/2 in N/A Hastelloy C-276 N/A 1/4 in N/A 0 to 2,500 psig
25-04H-H-02H-2F-P N/A 1/2" National Pipe Thread (NPT) Instrument Connection, Hastelloy C-276 Upper and Lower Housing & Diaphragm, 1/4" National Pipe Thread (NPT) Instrument Connection, 1/4" NPT Flushing Connection, Type 25 Diaphragm Seal w/ Optional Flush Port N/A 1/2 in N/A Hastelloy C-276 N/A 1/4 in N/A 0 to 2,500 psig
25-02S-H-02H N/A 1/4" National Pipe Thread (NPT) Instrument Connection, 316 Stainless Steel Upper Housing, Hastelloy C-276 Diaphram and Lower Housing, 1/4" National Pipe Thread (NPT) Instrument Connection, Type 25 Diaphragm Seal N/A 1/4 in N/A Hastelloy C-276 N/A 1/4 in N/A 0 to 2,500 psig
25-02S-H-02H-1F N/A 1/4" National Pipe Thread (NPT) Instrument Connection, 316 Stainless Steel Upper Housing, Hastelloy C-276 Diaphram and Lower Housing, 1/4" National Pipe Thread (NPT) Instrument Connection, 1/8" NPT Flushing Connection, Type 25 Diaphragm Seal N/A 1/4 in N/A Hastelloy C-276 N/A 1/4 in N/A 0 to 2,500 psig
25-02S-H-02H-1F-P N/A 1/4" National Pipe Thread Instrument Connection, 316 Stainless Steel Upper Housing, Hastelloy C-276 Diaphram & Lower Housing, 1/4" National Pipe Thread Instrument Connection, 1/8" NPT Flushing Connection, Type 25 Diaphragm Seal w/ Optional Flush Port N/A 1/4 in N/A Hastelloy C-276 N/A 1/4 in N/A 0 to 2,500 psig
25-02S-H-02H-2F N/A 1/4" National Pipe Thread (NPT) Instrument Connection, 316 Stainless Steel Upper Housing, Hastelloy C-276 Diaphram and Lower Housing, 1/4" National Pipe Thread (NPT) Instrument Connection, 1/4" NPT Flushing Connection, Type 25 Diaphragm Seal N/A 1/4 in N/A Hastelloy C-276 N/A 1/4 in N/A 0 to 2,500 psig
25-02S-H-02H-2F-P N/A 1/4" National Pipe Thread Instrument Connection, 316 Stainless Steel Upper Housing, Hastelloy C-276 Diaphram & Lower Housing, 1/4" National Pipe Thread Instrument Connection, 1/4" NPT Flushing Connection, Type 25 Diaphragm Seal w/ Optional Flush Port N/A 1/4 in N/A Hastelloy C-276 N/A 1/4 in N/A 0 to 2,500 psig
25-04S-H-04H N/A 1/2" National Pipe Thread (NPT) Instrument Connection, 316 Stainless Steel Upper Housing, Hastelloy C-276 Diaphram and Lower Housing, 1/2" National Pipe Thread (NPT) Instrument Connection, Type 25 Diaphragm Seal, Type 25 Diaphragm Seal N/A 1/2 in N/A Hastelloy C-276 N/A 1/2 in N/A 0 to 2,500 psig
Unit of Measure
1 2 3