ˆ˜ˇ˘ SPECIFICATION SUBMITTAL SHEET

1 WILKINS a Zurn Company, 1747 Commerce Way, Paso Robles, CA 93446 Phone:805-238-7100 Fax:805-238-5766In Canada: ZURN INDUSTRIES LIMITED, 3544 Nashua Dr., Mississauga, Ontario L4V 1L2 Phone:905-405-8272 Fax:905-405-1292 Product Support Help Line: 877-BACKFLOW (877-222-5356) Website: company DOCUMENT #: REVISION:ACV-ZW209FP 2/13 SPECIFICATION SUBMITTAL SHEETPage 1 of 2 Model ZW209 FPFire Protection Pressure Reducing ValveAPPLICATIONThe Zurn Wilkins Model ZW209FP Pilot Operated Pres-sure Reducing Valve is designed specifically for Fire Sup-pression Systems to reduce high inlet pressures to a safe and stable outlet pressure. The pilot assembly reacts to changes in downstream pressure allowing the main valve to modulate between the closed and open position ensuring a constant downstream set pressure. Once the downstream pressure reaches the pilot setting, the main valve will seal shut preventing damage downstream.

2 Pressure regula-tion is not dependent upon flow rate, resulting in minimal pressure loss through the valve. In addition the Models ZW209FP and ZW209 FPG come standard with red epoxy coating internally and externally for corrosion protection, as well as isolation valves and pressure gauges for quick and easy maintenance or repair. MATERIALSMain Valve Body Ductile Iron ASTM A536 Main Valve Cover Ductile Iron ASTM A536 Disc Guide Bronze ASTM B 176 Seat Bronze ASTM B 176 Disc Buna-N RubberDiaphragm Nylon Reinforced Buna-NStem Stainless SteelSpring Stainless SteelSIZESGLOBE STYLE BODY: Flanged ends 1 1/2" thru 10 Grooved ends 1 1/2" thru 10 Threaded ends 1 1/4" thru 3 TEMPERATURE RATING: Water 33 F to 140 FPILOT SPRING RANGE: 50-165 psi Residual Pressure (155 psi Max 10")Refer to for updated informationMAX. INLET PRESSURE.

3 300 psi (class 300) STANDARD FEATURES Wye Type Strainer Inlet and Outlet Pressure Gauges (UL/FM) 3-Way Gauge Isolation Valves Epoxy Coated, FDA Approved ANSI Class 300 FlangedSCHEMATIC DIAGRAMItem Description of Standard Features1 Main Valve2 SXL Wye Type Strainer3 Pressure Gauge4 Restriction Fitting5 PV-PRD Pressure Reducing ControlOPTIONS(Add suffix letters to ZW209FP)Item Description of Standard FeaturesG Grooved Ends (inlet rating 300 psi)TH NPT threaded (inlet rating 300 psi)X ANSI Class 150 Flanged (inlet rating 250 psi)RV Pilot on Reverse SideApprovals UL and C-UL Listed (1-1/4" thru 10")3 FLOW35421 MODEL ZW209 FPGS tandards ComplianceUL Pressure RatingsMain BodyANSI/AWWA C530 FlangedCLASS 150 - ANSI psiCLASS 300 - ANSI psiGroovedIPS - AWWA C606300 psiThreaded NPT - ANSI psiSTANDARDS AND PRESSURE RATINGSDIRECTION OF FLOWDIRECTION OF FLOWPage 2 of 3 WILKINS a Zurn Company, 1747 Commerce Way, Paso Robles, CA 93446 Phone:805-238-7100 Fax:805-238-5766In Canada: ZURN INDUSTRIES LIMITED, 3544 Nashua Dr.

4 , Mississauga, Ontario L4V 1L2 Phone:905-405-8272 Fax:905-405-1292 Product Support Help Line: 877-BACKFLOW (877-222-5356) Website: calculations are based on flow through schedule 40 Pipe. Maximum continuous flow is approximately. 20 ( meters/sec). Maximum intermittent flow is 25 ( meters/sec). Minimum continuous flow is approximately ( meters/sec). Valve SizeNPS (inches)1 1/41 1/222 1/2346810DN (mm)323850658010015080100 Min Flow Rate to set Valve (GPM)15151003560100220400600 Max Flow Rate (GPM)1251602503756001000225040006000 See Instruction SHEET at for more setting VALVE DIMENSIONSFLOW CHARACTERISTICS* Notes for Body Minimum Friction Loss Chart:Minimum inlet pressure is 10 psi higher than set point or the additional body friction loss at intended flow, whichever is higher. (friction loss may be important at flows above 20 ft/s)Example: A 6 valve intended to flow 2000 GPM at 150 psi has a friction loss of 20 psi at 2000 GPM.

5 The minimum inlet pressure would be 150 + 20 = 170 psi. When inlet pressure is below set point, the outlet pressure will be the pressure at the inlet minus the friction REDUCTION LIMIT050100150200250300020406080100120 OUTLET PRESSURE (PSI)INLET PRESSURE (PSI) Safe operating zoneCavitation damagezone (intermittent operation allowed)NoisezoneDamage ZoneUL LimitNoise LimitDo not operate in this area (red zone)DIMVALVE SIZE inches (mm)1 1/4 (32)1 1/2(38)2 (50)2 1/2 (65)3 (80)4 (100)6 (150)8 (200)10 (250)AThreaded7 1/47 1/49 7/161112 1/2n/an/an/an/aClass 150 Flangen/a8 1/29 3/81112152025 3/829 3/4 Class 300 Flangen/a91011 5/813 1/415 5/82126 7/1631 1/8 Groovedn/a8 1/291112 1/2152025 3/829 3/4 BDiameter5 5/85 5/86 3/48 1/169 3/1611 11/1615 3/420 1/823 11 3/45 3/46 3/167 3/88 1/810 3/1612 5/1615 9/1617 5 3/81 3/81 3/42 1/82 9/163 7/164 15/1655 13/16 EClass 150 Flangen/a2 1/233 1/23 3/44 1/25 1/26 3/48 Class 300 Flangen/a3 1/163 1/43 3/44 1/856 1/47 1/28 3/4 FNPT Body Tap3/87/163/81/21/23/43/411 GNPT Cvr.

6 Plug Tap1/21/21/21/21/23/43/411 HNPT Cover Tap3/87/163/81/21/23/43/411 Valve Stem Internal Thread UNF10-3210-3210-3210-321/4-201/4-201/4-2 03/8-163/8-16 Stem Travel (inches)7/167/163/47/815/161 3/161 3/42 3/82 13/16 Approx. Wt. System DimensionsXMax. (inches)8 3/48 3/48 3/48 3/49 3/41012 13/1615 3/817 5/8 YMax. (inches)2 7/82 7/83 1/244 1/2681012 ZMax. (inches)9 1/89 1/89 1/299 1/21012 1/413 3/415 1/2 YZXBCDFAEBHG011010010100100010000 PRESSURE DROP (PSI)FLOW (GPM)BODY MINIMUM FRICT ION LOSS 2-1/2"4" 6" 3" 2" 8" 10"1-1/2"1-1/4"OPERATIONThe Model ZW209FP utilizes a pressure reducing pilot valve that installs on the discharge side of the control circuitry. The pilot is a direct acting, normally open, spring loaded, diaphragm actuated valve. The operation of the ZW209FP begins with accurately sizing the valve, then fine tuning the control circuit by adjusting the pilot spring to the desired downstream pressure is piped to the inlet port of the pressure reducing pilot.

7 A sensing line runs internally from the discharge side of the pilot to its lower control chamber under the diaphragm. Thus, downstream pressure exceeding the preset acts to close the pilot while the adjustable spring seeks to keep it open. The result is a modulating action in the pilot that is transmitted to the cover of the main valve. This creates a mirror modulation of the diaphragm assembly in the main valve. Downstream pressure is maintained within narrow limits regardless of changing flow rates or varying inlet INSTALLATIONThe upstream and downstream pressure gauges are required by Underwriters Laboratories (UL). Also a relief valve of not less than 1/2" in size MUST be installed on the downstream side of the pressure control valve. Adequate drain-age for the relief valve discharge must be INSTALLATION SPECIFICATION REQUIREMENTSUL installation specifications require the valve to be installed in accordance with the standard for installation of sprinkler systems, NFPA 13, or the standard for installation of standpipes and hose systems, NFPA 14.

8 The valve is to be inspect-ed, tested and maintained in accordance with the standard for the Inspection, Testing and Maintenance of Water-Based Fire Protection Systems, NFPA Pressure Reducing Valve shall be a diaphragm actuated, pilot controlled. The main valve body shall be Ductile Iron ASTM A 536. The stem of the basic valve shall be guided top and bottom. The diaphragm shall not be used as a seat-ing surface. All internal and external ferrous surfaces shall be coated with a high quality, fusion epoxy coating. The pilot control shall consist of a two-way, normally open, direct acting, adjustable spring loaded, diaphragm actuated pressure reducing pilot. The pilot control shall be field adjustable from 50 psi to 165 psi. The Pressure Reducing Valve shall be a ZURN WILKINS Model NAME CONTRACTORJOB LOCATION ENGINEERDIRECTION OF FLOWDIRECTION OF FLOWTYPICAL INSTALLATIONPage 3 of 3 WILKINS a Zurn Company, 1747 Commerce Way, Paso Robles, CA 93446 Phone:805-238-7100 Fax:805-238-5766In Canada: ZURN INDUSTRIES LIMITED, 3544 Nashua Dr.

9 , Mississauga, Ontario L4V 1L2 Phone:905-405-8272 Fax:905-405-1292 Product Support Help Line: 877-BACKFLOW (877-222-5356) Website.