690 Series Duplex Basket Strainers - PRODUCT DATA BULLETIN 690 Series Duplex Basket Strainers - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Duplex Basket Strainer
Colton series 690 duplex basket strainers are designed for use in fluid handling systems where flow cannot be shut down for cleaning of screen.
Available in sizes from 3/4" to 8" with cast iron, cast bronze, cast steel or cast stainless steel body with threaded or ANSI flanged end connections for maximum operating pressures up to 740 psi.
Screens:
3/64" perforated 304 stainless steel supplied as standard on sizes up to 1-1/2". 1/8" perforated 304 stainless steel supplied as standard on sizes 2" and larger. Other perforations, meshes and materials are available upon request.
Optional Accessories:
- Differential Pressure Indicator for visual indication that screen is dirty or clean
- Manual Blowdown facility
- Automatic Blowdown facility
- Steam Jacket
- Magnetic Screen Inserts
- 100% Shut-off on changeover
| Items |
 691S-AA-3/4 Duplex Basket Strainer |
691S-AA-1 Duplex Basket Strainer |
691S-AA-1 1/4 Duplex Basket Strainer |
691S-AA-1 1/2 Duplex Basket Strainer |
691S-AA-2 Duplex Basket Strainer |
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| Basic Model Number | 691 (ANSI 125#) | |||||||||
| A | 3/4 in | 1 in | 1 1/4 in | 1 1/2 in | 2 in | |||||
| Connection Type | Threaded | |||||||||
| Body Material | Cast Iron | |||||||||
| Plug Material | Cast Iron | |||||||||
| B | 4 3/4 in | 4 3/4 in | 5 3/8 in | 5 3/8 in | 7 1/4 in | |||||
| C | 10 5/8 in | 10 5/8 in | 11 3/16 in | 11 3/16 in | 16 3/4 in | |||||
| D | 5 7/8 in | 5 7/8 in | 6 7/8 in | 6 7/8 in | 8 3/4 in | |||||
| E | 8 11/16 in | 8 11/16 in | 12 in | 12 in | 13 13/16 in | |||||
| F | 2 7/8 in | 2 7/8 in | 2 7/8 in | 2 7/8 in | 4.50 in | |||||
| G | 4 1/8 in | 4 1/8 in | 5.75 in | 5.75 in | 6 1/8 in | |||||
| H | 2.50 in | 2.50 in | 3 1/2 in | 3 1/2 in | 4 13/16 in | |||||
| J | 6 7/8 in | 6 7/8 in | 6 7/8 in | 6 7/8 in | 8 1/4 in | |||||
| K | 4 in | 4 in | 5 in | 5 in | 6 1/2 in | |||||
| L | 3 3/8 in | 3 3/8 in | 4 13/16 in | 4 13/16 in | 5 1/8 in | |||||
| M | 6 11/16 in | 6 11/16 in | 7 1/4 in | 7 1/4 in | 11 in | |||||
| N | 1/2 in | |||||||||
| P | ||||||||||
| R | ||||||||||
| Weight (Cast Iron) | 29 lb | 29 lb | 42 lb | 42 lb | 108 lb | |||||
| Body Bolt Material | Cast Iron BS1452 grade 220 min | |||||||||
| Sleeve Material | Not Applicable | |||||||||
| Changeover Plugs Material | SG Iron BS2789 grade 420/12 | |||||||||
| Internal Machine Parts Material | Mild Steel BS970 220 M07 | |||||||||
| Baskets Material | 304 Stainless Steel | |||||||||
| Drain Plugs Material | Brass | |||||||||
| Seals Material | Viton -30 ºF to 390 ºF | |||||||||
| Maximum Working Pressure at 100 ºF | 250 psig | |||||||||
| Body Color | Red | |||||||||
| ANSI Class | 125 | |||||||||
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