Apollo Conbraco RPLF4A User Manual
RPLF4A Series
Reduced Pressure Principle Backflow Preventer
SUBMITTAL SHEET
DESCRIPTION
The Apollo® Model RPLF 4A Reduced Pressure Principle Backflow Preventers consist of two independently acting, TriForce™ center stem guided check
valves with a dierential pressure relief valve located between the check valves. The unit is designed to give maximum protection against backflow of
health or non-health hazard fluids by either back-pressure or back-siphonage. The durable domestic stainless steel units (2-1/2”-8”) and the FDA epoxy
coated ductile iron units (10” and 12”) are easily maintained in the line without any special tools. The TriForce™ check valves operate with a spring assist in
the flowing condition to provide excellent flow rates which are documented by an independent laboratory.
LEAD FREE
NSF/ANSI 61- 8 & 372
Job Name:
Job Location:
Engineer:
Contractor:
Tag :
PO#:
Rep:
Wholesale Dist.:
FEATU R ES
• Domestic Stainless Steel Body: 2-1/2” – 8”
• FDA Epoxy Coated Ductile Iron Body: 10” & 12”
• Easy Maintenance – No Special Tools Required
• Snap-In Check Retainers: 2-1/2” – 6”
• Bolted-In Checks: 8” – 12”
• Low Pressure loss as Documented by an
Independent Laboratory
• Center-Stem Guided TriForce™ Check Valves
• Approved for Horizontal Flow
• US Patents: 6,443,184; 7,025,085;
7,533,699; 8,240,333
• Made in the USA – ARRA Compliant
PERFORMANCE RATING
• Maximum Working Pressure: 175 psi
• Temperature Range: 33 ° F – 140 ° F
• Hydrostatic Test Pressure: 350 psi
APPROVALS
• Sizes 2-1/2” – 8”: AWWA C511
• Sizes 2-1/2” – 12”: ASSE 1013-2011,
CSA B64.4, FM, IAPMO, UL*, cUL*
• *UL and cUL installations Must Include
Indicating-Type Shut-O Valves
• NSF/ANSI 61 Water Quality (2-1/2” - 12”)
• NSF/ANSI 372 Lead Free (2-1/2” – 12”)
STANDARD MATERIALS LIST
BODY (2-1/2” - 8”)
BODY (10” & 12” )
COVERS (2-1/2” - 6”)
COVERS (8”)
COVERS ( 10” & 12”)
RELIEF VALVE
CHECK VALVES
SPRINGS
SEAT DISCS
304 Stainless Steel
FDA Epoxy Coated Ductile Iron
Glass Filled PP O/SS
304 Stainless Steel
FDA Epoxy Coated Ductile Iron
LF C89 836
Bronze/Glass-filled PPO/SS
Stainless Steel
Chloramine-Resistant Silicone
• Approved by the Foundation for CrossConnection Control and Hydraulic Research at
the University of Southern California (2-1/2” - 8”)
PART NUMBER MATRIX
4ALF 2 X X 0 X XX
Y-STRAINER SIZE SHUT-OFF VALVES OPTIONS
4ALF - LEAD FREE STANDARD 0 - STANDARD 9 - 2-1/2” 1 - LESS SHUT-OFF VALVES D - DOMESTIC ASSEMBLY
EXAMPLE: 4ALF 20A 07 = 4” size Lead Free
Reduced Pressure Assembly with OS&Y flanged
inlet x OS&Y grooved outlet shut-o valves.
† Butterfly valves not available in 12” size.
*LEAD FREE: The wetted surfaces of this product shall contain no more than 0.25% lead by weighted average. Complies with Federal Public Law 111-380 . ANSI 3rd party approved and listed.
1 - W/ Y-STRAINER 0 - 3" 2 - NRS FLANGE X NRS FLANGE R1 - RETROFIT*
(SHIPPED LOOSE) A - 4" 3 - OS&Y FLANGE X OS&Y FLANGE R2 - RETROFIT*
C - 6" 4 - OS&Y FLANGE X MONITORED (MON.) BUTTERFLY VALVE GROOVE
E - 8" 6 - OS&Y FLANGE X POST INDICATOR FLANGE
G - 10" 7 - OS&Y FLANGE X OS&Y GROOVE
H - 12” 8 - OS&Y GROOVE X OS&Y GROOVE
9 - MON. BUTTERFLY VALVE GROOVE X MON. BUTTERFLY VALVE GROOVE
10 - OS&Y FLANGE X POST INDICATOR GROOVE
11 - NRS GROOVE X NRS GROOVE
12 - NRS FLANGE X NRS GROOVE
13 - POST INDICATOR FLANGE X MON. BUTTERFLY VALVE GROOVE
14 - POST INDICATOR FLANGE X POST INDICATOR FLANGE
16 - MON BUTTERFLY VALVE GROOVE X POST INDICATOR FLANGE
17 - POST INDICATOR FLANGE X OS&Y GROOVE
18 - OS&Y GROOVE X POST INDICATOR GROOVE
19 - MON. BUTTERFLY VALVE GROOVE X POST INDICATOR GROOVE
20 - POST INDICATOR FLANGE X OS&Y FLANGE
21 - POST INDICATOR GROOVE X OS&Y GROOVE
22 - POST INDICATOR GROOVE X MON. BUTTERFLY VALVE GROOVE
23 - MON. BUTTERFLY VALVE GROOVE X OS&Y FLANGE
†
R3 - RETROFIT*
*CUSTOM LENGTH RETROFIT
ORDERS MUST BE ACCOM
†
PANIED WITH SIGNED FROM
#OFBFRETRO WITH EXACT
LENGTH REQUIRED.
†
†
†
-
(704) 841-6000
apollovalves.com
SS1273 © 02/19 Page 1 of 3
This specification is provided for reference only. Apollo reserves the right to change any portion of this specification without
notice and without incurring obligation to make such changes to Apollo products previously or subsequently sold.
Most current information available at apollovalves.com.
SUBMITTAL SHEET
RPLF4A Series
Reduced Pressure Principle Backflow Preventer
LEAD FREE
Internal Component
Removal Space
Requirements
DIMENSIONS
Nominal dimensions are shown. Allowances must be made for manufacturers’ tolerances (± 1/8” (3 mm) per joint)
DIMENSIONS 2-1/2” 60 MM . 3” 75 MM. 4” 100 MM. 6” 150 MM . 8” 200 MM. 10” 250 MM. 12” 300 MM.
A (Butterfly Valves) 28 711 28.5 724 33.3 846 38.9 988 46.4 1179 56.3 1328 N/A N/A
A (Gate Valves) 31 787 32 813 38 965 45.9 1166 53.4 1356 62.3 1582 65.5 1664
B (less Shut-o Valves) 15.9 404 15.9 404 19.6 498 24.5 622 30 762 36 914 37 940
C (Butterfly Valves) 8 203 8.4 213 9.1 231 10.1 257 12 305 13.4 340 N/A N/A
C (NRS/PI Gate Valves) 11.8 300 13 330 14 356 17.8 452 21 533 24. 5 622 30 762
C (OS&Y Open) 18.8 478 20.3 515 22.1 562 29.4 747 36.8 934 45.2 1147 52.2 1326
D (Centerline to Bottom) 9.6 244 9.6 244 10.4 264 11.6 295 15.6 396 21 533 21 533
E (Width Max) 11.5 292 12 305 12.5 318 14.4 366 17.6 447 21 533 22 559
F (Check Removal Clearance) 4.8 122 4.8 122 6.5 165 7. 5 191 7. 5 191 10 254 10 254
G (With Strainer) 41.9 1064 43.6 1107 52 1321 64.5 1638 78.9 2004 88.4 2245 95.6 2428
H (Strainer Clearance) 8 203 8.8 224 9.5 241 12.6 320 16.4 417 19 483 22 559
Test Cocks (NPT) 1/2" 13 1/2" 13 1/2" 13 3/4 " 20 3/4 " 20 3/4" 20 3 /4" 20
WEIGHTS LB. KG LB. KG LB. KG LB. KG LB. KG LB . KG LB. KG
Net Wt. (Less Shuto's) 31 14 32 15 48 22 84 38 228 104 762 346 865 393
Ship Wt. (Less Shuto's) 61 28 62 28 78 35 144 65 328 149 952 433 1055 480
Net Wt. (W/ Butterfly Valves) 58 26 62 28 92 42 152 69 359 163 980 445 N/A N/A
Ship Wt. (W/ Butterfly Valves) 142 65 146 66 177 80 24 0 109 507 230 1170 532 N/A N /A
Net Wt. (W/ NRS Valves) 85 39 103 47 143 65 267 121 545 248 1269 577 1725 784
Ship Wt. (W/ NRS Valves) 169 77 187 85 228 104 355 161 693 315 1459 663 1915 870
Net Wt. (W/ OS&Y Valves) 103 47 119 54 1 74 79 327 149 620 282 1384 629 1840 836
Ship Wt. (W/ OS&Y Valves) 187 85 203 92 259 118 415 189 176 80 15 74 715 2030 923
Nominal dimensions are shown. Allowances must be made for manufacturers’ tolerances (1/8” per joint).
Internal body connections are grooved on 2 ½” – 10” sizes.
Internal body connections are flanged on 12” size.
Strainer option only available for flanged-end shut-o options.
(704) 841-6000
apollovalves.com
SS1273 © 02/19 Page 2 of 3
This specification is provided for reference only. Apollo reserves the right to change any portion of this specification without
notice and without incurring obligation to make such changes to Apollo products previously or subsequently sold.
Most current information available at apollovalves.com.
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