High range DP Switch DP series
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The document provides specifications for DP series high range pressure difference switches manufactured by NK Instruments Pvt. Ltd., outlining details such as housing materials, pressure accuracy, electrical ratings, and application areas. It includes a range selection table for maximum working pressures and a guide on how to order the switches with optional features. Key features include compact design, separate working chambers, and compatibility with various media through diaphragm seals.
High range DP Switch DP series
- 1. DP HIGH RANGE PRESSURE DIFFERENCE SWITCHES
- 2. NK Instruments Pvt. Ltd.B-501/504, 5th floor, Raunak Arcade, Near THC Hospital, Gokhale Road, Naupada, Thane(W) 400602. Maharashtra INDIA Telefax Nos.: 91-22-25301330 / 31 / 32 E-Mail: sales@nkinstruments.com Web: http://www.nkinstruments.com Skype: nitinkelkarskype Gtalk: nkinstruments2006 Authorised Dealer DP GENERALINFORMATION : DP series pressure difference switches are housed in pressure die cast aluminum powder coated enclosure and are recommended for panel mounting or indoor service based on the type of enclosure opted for. The repeat accuracy is better than ± 1 % FSR. A 3/8" cable entry is provided for cables and a terminal strip suitable for wired ends is provided inside the enclosure. Pressure ports are ¼ " BSPF standard FEATURES : · Compact · Separate chamber for working parts · Choice of wetted parts to suit working media Electrical rating : 5A, 250 VAC; 0.2 A, 250 VDC (res.) · Pressure ports: ¼" BSPF Some Applications : Works on opposed diaphragm principle, diaphragm seals can be coupled to this switch. Used in water treatment plants, bag filters, strainers, etc Range Selection Table Range Code Range bar (psi) ?P Approximate Maximum Differential* bar (psi) Maximum Working Pressure bar (psi) H01 0.1 - 1.0 (1.45 - 14.50) 0.15 (2.18) 12 (174.05) H02 0.1 - 1.5 (1.45 - 21.76) 0.15 (2.18) 12 (174.05) H03 0.2 - 2.6 (2.90 - 37.71) 0.2 (2.90) 12 (174.05) H04 0.2 - 3.6 (2.90 - 52.21) 0.2 (2.90) 12 (174.05) H07 0.5 - 7.0 (7.25 - 101.52) 0.5 - 10.0 (7.25 - 145.04) 0.2 (2.90) 12 (174.05) H10 0.5 - 10.0 (7.25 - 145.04) 0.5 (7.25) 25 (362.6) H15 1.0 - 15.0 (14.50 - 217.71) 0.5 (7.25) 25 (362.6) H30 5.0 - 25.0 (72.52 - 362.6) 1.0 (14.50) 35 (507.63) *Minimum differential increases with set point (Graphs available on request) How to order DP series high range pressure difference switches Group 1 Group 2 Group 3 Group 4 Group 5 Group 6 Model Range Code Range Scale Pressure Housing Diaphragm Enclosure DP - Pressure Difference Switch (Can be used for both side Positive` Pressures Only) H -High Pressure Range U -Uncalibrated C -Calibrated A -Aluminium B -Brass S -SS 316 0 - Neoprene 1 - Teflon 0 - IP 54 for special wetted parts through chemical seals, please refer page 330,331 & 332 and specify in text accordingly. eg. A pressure difference switch, high pressure range from 0.1-1.5 bar in calibrated style with brass pressure housing & a teflon diaphragm as wetted parts, with IP54 Enclosure shall be specified by Group 1 Group 2 Group 3 Group 4 Group 5 Group 6 DP H02 C B 1 0 Please specify full model number to avoid ambiguty. If only the first two groups are specified while ordering, uncalibrated switches with standard wetted parts and enclosures will be supplied. HIGH RANGE PRESSURE DIFFERENCE SWITCHES