GENERAL FEATURES
In the following sections you can see the entire tables by scrolling them to the right and to the left
| POS. | DESCRIPTION | MATERIALS | SPARES | |||
| 1 | Body | ASTM A234 WPB | ASTM A420 WPL6 | ASTM WP 403 F316 | ASTM A234 WP5 | |
| 1.2 | Flange | ASTM A105 | ASTM A350 LF2 | ASTM A182 F316 | ASTM A182 F5 | |
| 1.3 | Guide rods | S.S. 304 | S.S. 304 | S.S. 304 | S.S. 304 | |
| 2 | Blind flange | ASTM A105 | ASTM A350 LF2 | ASTM A182 F316 | ASTM A182 F5 | |
| 3 | *Basket | S.S. 304 | S.S. 304 | S.S. 304 | S.S. 304 | X |
| 4 | Gasket | SS316/Graph. | SS316/Graph. | SS316/Graph. | SS316/Graph. | X |
| 5 | Stud Bolts | ASTM A193 B7 | ASTM A320 L7 | ASTM A320 L7 | ASTM A193 B7 | |
| 6 | Nuts | ASTM A194 2H | ASTM A194 Gr.4 | ASTM A194 Gr.4 | ASTM A194 2H | |
| 7 | Plug | ASTM A105 | ASTM A350 LF2 | ASTM A182 F316 | ASTM A182 F5 | |
OTHER MATERIALS AND DIMENSIONS ON REQUEST
* BASKET TYPE: V - W - WW - Z. Basket configuration depend of % ratio requested by customer
CONNECTIONS
Buttweld ANSI B16.25
Flanged ANSI B16.5
STRAINER DESCRIPTION
Designed according to ANSI B16.34 the strainer bodies are produced with a superior wallthickness for corrosion allowance. Standard stainers are equipped with screens for the average service of most mediums ( steam, gas, air, oil, chemicals , ect. ). The large screen open area ensures an efficent filtering action with a low pressure drop. Filtering area to inlet area ratio is larger than 3 to 1 . Screens area manufactured with perforated plate in the materials and with the perforation specified in the relevant tables . Screens with different perforation ( or wire mesh ) and materials may be manufactured on request.
SIZES / DIMENSIONS
| Size (inches) | 2” | 3” | 4” | 6” | 8” | 10” |
| S | 127 | 172 | 210 | 286 | 356 | 432 |
| SF | 254 | 312 | 363 | 464 | 560 | 636 |
| H | 148 | 182 | 208 | 260 | 311 | 351 |
| Size (inches) | 12” | 16” | 18” | 20” | 24” | 26” |
| S | 508 | 610 | 686 | 762 | 864 | 990 |
| SF | 737 | 864 | 966 | 1052 | 1169 | 1235 |
| H | 403 | 472 | 525 | 571 | 635 | 688 |
HOW TO SERVICE
Strainer maintenace should be made at least once year, or whenever the pressure drop is found to be in excess of the normal figures. A quick clean-up system, to made approximately once a mounth. For a complete maintenance follow the points herebelow:
- Be sure that the main line has been shut-off
- Untighten cover stud bolts (5) and nuts (6) and remove cover [ blind flange ] (2) and gasket (4)
- Withdraw basket (3) an carefully inspect it for damages. If any hole in the screen is found abstructed, clean it with compressed air and / or any suitable tool. If the basket is broken in any part or out of shape, replace it with a new spare one.
- Carefully clean the inside of the strainer body
- Fit a new gasket (4)
- Install the new screen or the cleaned one (3)
- Put in place cover (2)
- Slowly give pressure to the line, checking for leakages
- Write on the strainer body the date of this maintenance operation
