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NOTES

Caleffi North America, Inc.

3883 West Milwaukee Road

Milwaukee, WI 53208

T: 414.238.2360 F: 414.238.2366

09-2023

For Technical Support call 1-414-338-6338, or 

email [email protected]

Содержание 573 Series

Страница 1: ...ric vent size 1 2 3 4 NPT female threaded connection with union size 1 2 sweat connection with union size 1 2 press connection with union Technical specifications Connections 1 2 3 4 NPT female with u...

Страница 2: ...echanically over stressed Over time this could cause breakages with consequent water losses which in turn could cause harm to property and or people Caleffi shall not be liable for damages resulting f...

Страница 3: ...ci pourrait causer des ruptures avec pour cons quence des pertes en eau qui leur tour peuvent causer des dommages la peopri t et ou les gens Caleffi ne pourra etre tenue responsable des dommages resul...

Страница 4: ...4 Flow rate graph 10 2 5 10 5 20 50 Dp psi G l min gpm 20 10 5 psi bar 20 1 0 5 10 2 5 15 1 0 52 0 3 Cv 0 7 VENT p psi p psi bar G l min gpm...

Страница 5: ...arrow on the valve body It also must be installed with one isolating valve and a strainer upstream and one isolating valve downstream The 573 Series FlowShield DuC AV backflow preventer must be instal...

Страница 6: ...s 1 2 S N VENT Heating system application BACKFL OW PRE V Series 573 Sizes 1 2 S N VENT Field testing installation SUPPLY Inlet test valve Upstream shut off valve Y strainer Upstream test valve 573 se...

Страница 7: ...ightness of the internal second check valve When backpressure is applied to the downstream side of the valve the internal second check valve must close back drip tight on its seat a Close shutoff valv...

Страница 8: ...8 NOTES Caleffi North America Inc 3883 West Milwaukee Road Milwaukee WI 53208 T 414 238 2360 F 414 238 2366 09 2023 For Technical Support call 1 414 338 6338 or email techsupport us caleffi com...

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