Page 107 - Apollo - Commercial Products Catalog

DOUBLE CHECK VALVES

DCLF 4A AND DCLF 4An SERIES DOUBLE CHECK VALVE ASSEMBLIES
The Apollo® DCLF 4A and DCLF 4An 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 TriForce™ center stem guided check valves feature replaceable
DCLF 4A Series and reversible silicone seat discs. The body is stainless steel from 2-1/2”-8”
Sizes 2-1/2”-12” and FDA epoxy coated ductile iron in the 10” and 12”. Available with a wide
variety of shutoff valve options. The DCLF 4An normally vertical up/vertical
down oriented body incorporates an internal swivel connection providing
the ability to pivot the second check.
FEATURES
• Stainless steel body: 2-1/2”-8” • UL, ULC Classified
• FDA epoxy coated ductile iron • FM approved
body: 10” & 12” • Maximum working pressure 175 psi
• Easy maintenance - no special • Temperature range 33°F - 140°F,
tools required 180°F intermittent
• Low pressure loss as documented • US Patent Nos. 6,443,184;
DCLF 4AN Series by an independent laboratory 7,025,085; 7,533,699
Sizes 2-1/2”-12”
• Lead-Free • Made in the USA
• Chloramine-resistant elastomers • 5 year, domestic warranty
• ASSE 1015 • 4A- Approved for horizontal and
• Approved by the Foundation for vertical up flow *
Cross-Connection Control and • 4An - Small installation space
Hydraulic Research at the required - small footprint
University of Southern California * Contact factory for approval details
(DCLF 4A: 2-1/2” - 8”)
(DCLF 4AN: 2-1/2” - 8”)

Optional Valve Setter TriForce Check
TM

DC 4SG SERIES DOUBLE CHECK VALVE ASSEMBLY
The Apollo® DC 4SGLF Series Double Check Valve is designed to prevent
contamination of the potable water supply due to back-siphonage or
backpressure from substances that are non-health hazards. The modular
check valves have replaceable seats and reversible EPDM seat discs. Grooved
connections on an epoxy-coated ductile iron body allow for easy connection
to butterfly valves or gate valves.
FEATURES
• Short lay length • CSA
• Low pressure loss • Approved by the Foundation for
• Modular check valves Cross-Connection Control and
• Reversible/replaceable seat discs Hydraulic Research at the
• Approved for vertical (up) and University of Southern California
horizontal installations • AWWA C-510
• Gate valves epoxy coated (FDA) • UL Classified
DC 4SGLF Series
Sizes 2-1/2”, 3”, 4”, 6” • Corrosion resistant epoxy-coated • FM approved
ductile iron body • US Patents #5,711,341 and
• ASSE 1015 #6,343,618

107
See Backflow Prevention Catalog (BFCA9000) for more detailed information about the products in this section.