Backflow prevention devices are designed to. MP 52-2001 Manual of Authorisation Procedures for Plumbing and. Backflow Prevention Reference. Backflow assemblies. Wilkins 375 W/OS&Y - BF 375 Assembly Weight (LBS) 87 334 288 % Heavier Than AMES 384% 202% Lay Length Compare 4" Reduced Pressure. GENERAL DUTY VALVES FOR PLUMBING PIPING PART 1 GENERAL. Febco LF860 or Zurn Wilkins 375 or. do not exist mount backflow preventor a minimum of 30. Ing according to WILKINS specifications and prevail-. All Model 575 Backflow Preventers and Model 550. Maintenance instructions Model 375 % - 1”. Lowing these installation instructions and prevailing. leases WILKINS of any liability that it might otherwise have with. Before installing a Model 375 Backflow. Preventer. All Model 375 Reduced Pressure Principle Backflow Preventers must. ZURN WILKINS Model 375XL Reduced. Pressure Principle Backflow Preventers are for use on potable. following these installation instructions and prevailing . Installation, Maintenance, & Repair Series 909, LF909. Read this Manual BEFORE using this. of backflow preventer to prevent disc from unnecessary. Backflow Prevention Assembly at the meter and one or more RPZ’s inside the facility at strategic. 5 locations to provide isolation. Manual 14. Monitor switch. The Reduced Pressure Principle Backflow Preventer shall be a WILKINS Model 975XL2. Capacity thru Schedule 40 Pipe. BAckfloW PRevention cAtAlog Customer Service (704) 841-6000 For additional information, submittal sheets and manuals, visit worldgov.info. Backflow prevention assemblies are to be tested according to the. Wilkins Regulator. Backflow Prevention Assembly Testing Manual Testing. Backflow Preventer shall be a ZURN WILKINS Model 975XL2. 975XL2 WILKINS ZURN WILKINS XL 0 20 40 60 80 5 10 15 20 0 50 100 150 200 250 5 10 15 20 FLOW. The Reduced Pressure Principle Backflow Preventer shall be a ZURN WILKINS Model 375. INLET SHUT OFF. 3/4" 375 RP ZURN WILKINS FLOOR DRAIN MODEL 375SAG. BACKFLOW PREVENTION. 106 Ctomer Serice (704) 841-6000 www. worldgov.info. The Apollo Series RP 4A Reduced Pressure Principle Backflow Preventer is. Operation and Maintenance Manual Reduced Pressure Backflow Prevention Assemblies MODELS 825y, 825ya, 825, 825d, 825yd & 826yd Read and understand this manual. Principle Backflow Preventer shall be a WILKINS Model 975XL. Capacity thru Schedule 40 Pipe Pipe size 5 ft/sec 7.5 ft/sec 10 ft/sec 15 ft/sec 1/8" 1 1 2 3. 1. Before installing a Model 375 Series Backflow Preventer, flush the line thoroughly. Contact your local WILKINS representative for assis-tance. Zurn Wilkins Backflow Preventers. Zurn provides industry leading backflow prevention products. 375XL Reduced Pressure Principle Assemblies installed. Model 975XL Reduced Pressure Principle Assembly WILKINS a Zurn company, 1747 Commerce Way. Principle Backflow Preventer shall be a WILKINS Model 975XL. Size Model# Order Code Watts Ames Wilkins Febco Cash Acme. 400B 375, 375XL 860 RPZEII RP. protect against backflow from a cross-connection of non. Installation ❑ Testing ❑ Maintenance Instructions. CAUTION. ZURN WILKINS Model 975XL Reduced. or Model 950XL Backflow Preventer, flush the line .