Catalog: Water Regulators and Blackflow Preventers & Meters
Company/Brand: Duff Company
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| | watts u5b standard capacity water pressure reducing valve with integral strainer ... 1/2 through 2 suitable for initial pressure unless otherwise specified max temp ... in closed systems available low pressure range u5blp 10-35 set 30 lb 1/2 to 1 ... available high pressure range u5b hp range 75-100 set 90 size ... 3595 3651 3655 3661 duff co watts water pressure reducing valve watts 223 1/2 to 2 1/2 ... n223b 2 1/2 3 super capacity water pressure reducing valves with and without ... or industrial applications initial pressures up to 300 lbs reduced pressure range 25 ... -75 lbs set for 50 lbs delivery pressure unless otherwise specified npt female ... 160of bronze body available low pressure range 1 35 lbs set for 30 lbs unless ... otherwise specified available high pressure range 1/2 3/4 1 50-145 1 1/4 50-120 ...
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| | examples type purpose 1 2 3 4 reduced pressure zone back two independent check valves ... supply lines with intermediate relief valve backpressure or back siphonage ... connections supplied with shut-off valves where there is a high potential lab ... health contamination and continuous pressure applicawaste digesters continuous ... pressure tion car washes reduced pressure detector assy high hazzard rpz valve ... -connections subject to double check valve assembly two independent check valves ... health contamination and continuous pressure applica checks are replaceable for ... repair testing continuous pressure tions main supply lines food cookers ... in by pass low hazzard line dual check valve backflow preventer for low hazard cross ... -connections continuous pressure applications specialty backflow ...
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| | or aspirator polished chrome finish max pressure 125 psi fig no price 8686 hose ... installations for in-line continuous pressure applications double check design ... especially made used under continuous pressure for labofor wall and yard hydrants ... lines to prevent backflow when supply pressure falls below system pressure female ... connections not subject to continuous pressure install 6 above highest downstream ... temperature 160of at 125 lbs working pressure not a backflow preventer price series ... repair kits watts 800m4qtanti-siphon pressure vacuum breaker for health hazard cross ... connections continuous pressure applications install 12 above highest ... downstream point of water this valve is designed to prevent backsiphonage of ... continuous systems or other continuous pressure piping systems working temp 33of to ...
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| | full port resilient seated bronze ball valve 175 psi 140of bronze body construction ... modular design replaceable seats ball valve test cocks easily serviced with no ... principal provides high capacity relief valve discharge during the emergency ... of combined back-siphonage and back pressure with both checks fouled epoxy coated ... cast iron check valve body with bronze seats 175 psi to 140of ... entrance two inline independent check valves with an intermediate relief valve ... /4 -3 4 -6 watts n36 vacuum relief valve for water service automatically vents a ... also suitable for steam service max pressure 15 psi size weight fig no price 1/2 3/ ... test kit for testing all reduced pressure zone backflow preventers accurate ... testing of zone and relief valve opening differential fouled check ...
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| | backflowpreven ters-meters duff reduced pressure zone backflow preventers co rebuild ... zurn combraco febco hersey check valve kits when ordering please specify fig ... no and valve size fig no kit no first check kits ...
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| | -backflowpreven ters-meters reduced pressure zone backflow preventers relief valve ... when ordering please specify fig no and valve size fig no relief valve rubber parts ... 85660 85661 85662 85663 relief valve total 64689 85665 85666 85667 total ...
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| | liner butyl diaphragm max operating pressure=200of standard factory precharge 40 psig for ... tank is heated keeping the system pressure below the relief valve setting fig no ... diatrol shock supressor max working pressure=100 psig max shock pressure=150 psig max ... operating temperature=200 o f precharge pressure=22 psig large size to 48 diameter ... loss of air and water logging the air pressure can be measured and field adjusted ... through the vessel air valve water never contacts steel and the the ... -compressible liquid flowing at a given pressure and velocity causes a surge or spike of ... called water hammer when this occurs a pressure wave travels back through the piping ... washers fast closing positive shut off valves incorporated in the system all ... -trol shock sup pressor max working pressure=150 psig max shock pressure=200 psig max ...
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