Page 106 - Apollo - Commercial Products Catalog

DOUBLE CHECK VALVES

**Apollo Recommended APPLICATION
BACK BACK CONTINUOUS AESTHETIC HEALTH
TYPE OF DEVICE SERIES SIPHONAGE PRESSURE PRESSURE HAZARD HAZARD
DCLF 4A
DOUBLE CHECK VALVE DCLF 4An ü ü ü ü
DC 4SG
DOUBLE CHECK DCDALF 4A
DETECTOR ASSEMBLY DCDALF 4An ü ü ü ü
DCDA 4SG
REDUCED PRESSURE RPLF 4A ü ü ü ü ü
PRINCIPLE
REDUCED PRESSURE ü ü ü ü ü
PRINCIPLE (n & V Flow) RPLF 4An
REDUCED PRESSURE
PRINCIPLE (Stainless Steel) RP 40-S ü ü ü ü ü
REDUCED PRESSURE RPDALF 4A
DETECTOR ASSEMBLY RPDALF 4An ü ü ü ü ü
ATMOSPHERIC AVB1, AVB1LF
VACUUM BREAKER AVB2 ü ü ü
PRESSURE PVB 4A, PVBLF 4A ü ü ü ü
VACUUM BREAKER
SPILL RESISTANT PRESSURE
VACUUM BREAKER SVB 4W, SVBLF 4W ü ü ü ü
DUC 4N, DUCLF 4N
DUAL CHECK DUC 4FP ü ü ü ü
DUC40, DUCLF40
DUAL CHECK W/ ATMOS.
PORT DCAP, DCAPLF ü ü ü ü
CARBONATED BEVERAGE CBBP ü ü ü ü
BACKFLOW PREVENTER
HOSE CONNECTION *
VACUUM BREAKER HBV2, HBV2LF ü ü ü ü
ANTI FREEZE HOSE CONN. HBVAF2, HBVAF2LF ü ü * ü ü
VACUUM BREAKER
HOSE CONNECTION *
BACKFLOW PREVENTER HBDUC, HBDUCLF ü ü ü ü
LAB FAUCET LFDUCLF ü ü ü
VACUUM BREAKER
* Limited back pressure to 10’ head
** Check with local authorities having jurisdiction
Double Check Valve Backflow Preventers

DC-4A SERIES TOP ENTRY DOUBLE CHECK VALVE ASSEMBLY
The Apollo MODEL DC 4A Double Check Valves are designed to prevent
contamination of the potable water supply due to back-siphonage or
backpressure from substances that are objectionable, but non-health hazards.
The modular check valve captured spring cartridges have replaceable seats
and reversible silicone seat discs. Ball valve shut-offs with stainless steel
handles and nuts are standard.
FEATURES
• Low pressure loss • ASSE 1015
• Captured spring cartridge check • IAPMO
valves • Approved by the Foundation for
• Compact yet easy to maintain Cross-Connection Control and
Sizes 1/2”, 3/4”, 1”, 1-1/4”, 1-1/2”, 2” • Shut-off ball valves w/ SS handles Hydraulic Research at the

& nuts standard University of Southern California
• Top access for fast testing and • CSA
maintenance • Chloramine-resistant elastomers
• Threaded testcock protectors • Patent pending
• Corrosion resistant • Horizontal and vertical up
• No special tools required approvals
• 5 year, domestic warranty • Maximum working pressure 175 psi
• Lead-Free option (DCLF 4A) • Temperature range 33°F - 180°F
• Available with factory installed • Designed,manufactured,
APOLLOXPRESS press connections assembled and tested in South
• UL, ULC Classified Carolina, USA

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Customer Service (704) 841-6000 www.apollovalves.com