Duplex basket filter & strainer permits continuous operation because flow can be switched back and forth between two filter sections. This allows one side to be serviced while the other is in use. Normally duplex basket filters are separated with three way ball valves or two way ball valve/ butterfly valve connected with equalization tee, between two baskets filter housing.
SALIET FEATURES OF DUPLEX FILTERS
- No shutdown time
- Online change over to either of strainer vessels
- Dimensionally flexibility due to fabricated construction
- Both inline & offline connection available
- All housings made from SS 316 L, SS 316 & SS304 are mirror polished to resist adhesion of dirt and scale
- Carbon steel housings are Epoxy coated & finally painted with two coats of synthetic enamel
- High temperature & high pressure design are available
DESIGN FEATURES OF DUPLEX FILTERS
- Custom modifications available to suit customers required
- Strainers designed to meet requirement of ASME section VIII div-I
- Ball valve, gate valve butterfly or other valves can be provided as per requirement
- 304 / 316 perforated screens / mesh are standard
- Drain vents & differential connection are standard and are furnished with plugs
MATERIAL OF CONSTRUCTION OF DUPLEX FILTERS
- Carbon steel (All Grades)
- Mild Steel
- Caste steel
- S.S. 304
- S.S. 316
- S.S. 316 L
SIZE RANGE
- Connection Size – 1’’ to 16’’
- Class #150 to #300
APPLICATION OF DUPLEX FILTERS
- Process Industries
- Chemical Industries
- Oil & Gas Industries
- Power Industries
- Metal & Mining industries
- Water & Waste management