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DP-Series-Style Butterfly-Off Line 150/300 lbs

Design Features

  • Standard sizes from 50 nb to 1200 nb
  • Available In flanged Ends To ANSI B16.5 , AWWA , IS Standards with 150/300 ratings
  • Butterfly type diverter valves
  • Standard thru bolt cover design. Other covers on request
  • Perforated screens are standard
  • May be installed in horizontal pipelines
  • All welders are qualified to ASME Section IX
  • Strainers designed to meet the requirements of ASME Section VIII,Div.1
  • Drain with plug is is standard . Drain valves can be supplied on request
  • Vents with plug and Dp indicators are standard
  • Large body with Guaranteed low pressure drop as per Table 4.
  • Net free straining area minimum 6 times for standard screen

Material Data

Strainer Body IS1239,3589 ASTM A106, SS304/316, DUPLEX STEEL
Cover A105, SA 516 GR 70, CS TO IS 2062, SS316,304, DUPLEX STEEL
Valve Body Cast Iron, ASTM A 216 WCB,CF8,CF8M
Valve Disc CI,SS 304, SS 316
Fastners A193 B7 Bolts & A 194 2 H Nuts with spring washer. SS 304/316
Gaskets CAF, NACF, Neoprene, NItrile,PTFE
Valve Seals EPDM,Nitrile,PTFE
Drain / Vent Plug A105, CS TO IS 1875-II, Stainless Steel
Filter Element SS 304,316, Duplex, Brass, Monel, Hastalloy C

* Other materials available on request.

Standard Screens

Size Range Opening
5″-8″(125mm-200mm) 0.125 IN. (3.2mm)
10″-12″(250mm-300mm) 0.125 IN. (3.2mm)
14″-24″(350mm-600mm) 0.188 IN. (4.8mm)

Dimensions

Size
mm		 A
mm		 B
mm		 C
mm		 D
mm		 E
mm		 F
mm		 Weight
lb/kg
50 254 660 165 508 356 813 280/127
80 311 762 194 572 388 978 300/136
100 362 914 213 648 445 1054 450/204
150 464 1118 284 881 568 1295 700/318
200 559 1270 366 1158 732 1499 1400/636
250 635 1626 441 435 883 1701 1850/840
300 737 1829 517 1711 1034 2028 2750/1249
350 816 1930 611 1988 1223 2374 4000/1816
400 864 2134 693 2265 1387 2708 5300/2406
450 965 2388 763 2542 1525 3030 5900/2679
500 1051 2642 857 2819 1715 3376 8000/3632
600 1168 3099 1021 3372 2042 4043 9000/4086

Fabricated Duplex Strainer Pressure Drop — Liquids (Sizes 5-24)

Note: Pressure drop curves are based on water flow with standard screens.