KCM TECH GROUP COMPANY
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STRAINER INSTALLATION INSTRUCTIONS
A . Ensure all machined surfaces are free of defects and that the inside of the
strainer is free of foreign objects.
B . For horizontal pipelines, the strainer should be installed so that the drain
connection is pointed downwards.
C . For flanged end strainers, the flange bolting should be tightened gradually in
a back and forth clockwise motion.
D . Once installed, increase line pressure gradually and check for leakage around joints
E . If the strainer is supplied with a start-up screen, monitor pressure drop carefully.
Brief introduction:
The strainer may be used on all types of pipelines to collect granulated foreign substances and
contaminants collected. It can improve the clearance in the medium, and prolong the life of valves
and other equipments. It is suitable for wafer, petroleum and steam.
Mail part & material
Body: gray cast iron, cast iron, ductile iron
Filter: stainless steel
O-ring: NBR
Technical Specification
- Nominal diameter:65～500mm
- Nominal pressure:1.0/1.6/2.5Mpa
FEATURES
• Iron strainers are complete with Flat Face (Series 125YF) or Raised Face (Series 250YF)
flanges in accordance with ASME B16.1.
• Strainer body meets applicable ASME Standard.
• One piece cast body.
• Strainers equipped with bolted cover flange that utilize a flat gasket seal.
• Low pressure drop.
• Upper and lower machined seats.
• 304 SS perforated screens are standard.
• Drain/Blow-off connection furnished with plug as standard.
• Generous screen area and properly proportioned straining chamber to minimize initial pressure
drop while maximizing time between cleanings.
• Compact end to end dimension.
| SIZE | INCH | 2 | 2½ | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 |
| MM | 50 | 65 | 80 | 100 | 130 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | |
| A | INCH | 7.875 | 10 | 10.125 | 12.125 | 15.625 | 18.5 | 21.625 | 25.75 | 30 | 33.25 | 38.75 | 43.12 |
| MM | 200 | 254 | 257 | 308 | 397 | 470 | 549 | 654 | 759 | 846 | 984 | 1095 | |
| B | INCH | 5.25 | 6.5 | 7.5 | 9 | 13.125 | 15.75 | 18 | 18.5 | 22 | 28.625 | 30 | 31 |
| MM | 133 | 165 | 190 | 227 | 335 | 401 | 457 | 471 | 557 | 727 | 762 | 788 | |
| C | INCH | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 |
| MM | 51 | 65 | 76 | 102 | 127 | 152 | 203 | 254 | 305 | 356 | 406 | 457 | |
| Weight | kgs | 13 | 16 | 21 | 30 | 43 | 60 | 90 | 140 | 175 | 392 | 627 | 1032 |
| DN | G | L | E | B | H |
| 6 | 1/4" | 65 | 11.5 | 24 | 42 |
| 10 | 3/8" | 65 | 13 | 24 | 42 |
| 15 | 1/2" | 65 | 14 | 26 | 43 |
| 20 | 3/4" | 80 | 15 | 32 | 50 |
| 25 | 1" | 89 | 17 | 41 | 60 |
| 32 | 1-1/4" | 105 | 20 | 49 | 64 |
| 40 | 1-1/2" | 120 | 20 | 56 | 70 |
| 50 | 2" | 140 | 22 | 69 | 88 |
Specification
| Nominal pressure(Mpa) | PN | 2.5,4.0 |
| Strength testing pressure(Mpa) | PT | 3.8,6.0,9.6 |
| Low pressure seal test(Mpa) | 0.6 | |
| High pressure seal test(Mpa) | 2.8,4.4,7.04 | |
| Applicable medium | water, oil, gas, nitric acid, acetic acid | |
| Applicable temperature | -40～180℃ | |
Main part & material
| Part name | Material |
| body | WCB,ZG1Cr18Ni9Ti,CF8,CF8M |
| Mesh | 1Cr18Ni9Ti 304,316 |
| stem | 1Cr18Ni9Ti 304,316 |
| packing | Polytetrafluoroethlene(PTFE) |