©Johnstone Supply eCatalog 216

HYDRONICS Valves

Pressure Relief Combination Valves • Installed in systems to discharge water should excessive pressure drop • Product is not approved for potable water usage based on overall lead content

pressures and a reducing valve with a built-in low inlet pressure check valve WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

• Relief valve diaphragm operated, with low differential between opening and closing

Order #

Mfg. #

Conn. Size

Body Type

PSI Setting Reducing PSI Setting Relief

L47-538 L47-539

110197LF 110199LF

1/2" 1/2"

Bronze

12 12

30 30

Iron

Automatic Filling Valves • Constructed of high quality brass, Teflon, stainless steel and EPDM • L44-659 and L44-660 AutoFill Combo pre adjustable automatic filling unit with backflow preventer • L44-661 and L44-662 complete with manual shutoff valve, strainer and check valve

• L44-661 and L44-662 are designed to protect drinking water systems from the return caused by back-siphonage of contaminated fluids WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Fig. Order #

Mfg. #

Description

Max. Pressure

Temp. °F

L44-659 L44-660 L44-661 L44-662

A A B B

573002A 1/2" NPT Inlet 1/2" NPT Outlet 573009A 1/2" Sweat Inlet 1/2" NPT Outlet 553542A 1/2" NPT Inlet x 1/2" NPT Outlet

175 PSI 175 PSI 230 PSI

150 150 150 150

A

B

553549A 1/2" Sweat Inlet x 1/2" NPT Outlet 230 PSI

Combination Backflow Preventer and Hot Water Fill Valve • 9D backflow preventer and 1156F fill valve in one pre-assembled unit • Protects against both back-siphonage and back-pressure • Product is not approved for potable water usage based on overall lead content • Maximum temperature: 212°F • Maximum pressure: 100 PSI

Order # Mfg. # R54-576 0386463

Model #

Inlet Conn. 1/2" NPT

Outlet Conn.

Conn. Size

911

1/2" NPT

1/2"

Combination Backflow Preventer and Fill Valve • New V F06-100 -SUSUT ( R57-486 ) dial set pressure regulating valve and BP900 backflow preventer in one pre-assembled unit • Built-in check valve • Automatic fill

• Adapter included for NPT or sweat connections Specifications: • Regulating pressure range: 8 PSI to 50 PSI; preset at 12 PSI • Maximum operating pressure: 150 PSI

Order # Mfg. # R55-623 FM911

Inlet Conn.

Outlet Conn.

1/2" NPT or Sweat

1/2" NPT or Sweat

Lead-Free Water Pressure Reducing Valves • Adjustable from 25 to 75 lbs.; standard setting at 50 lbs. • A.S.S.E. 1003 and I.A.P.M.O. rated • Bypass feature • Series 25AUB-Z3 for supply pressures up to 300 lbs. and 160°F • Series N55BU for supply pressures up to 400 lbs. and 180°F

• Series N55BU has union inlet, NPT threaded outlet • Series N55BU can be used for waterworks installations • The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight

• Series 25AUB-Z3 includes integral stainless steel strainer, with a high temperature resisting reinforced diaphragm for hot

A

B

Fig. Order #

Mfg. # 9217 9257 9309

Model #

Conn. Size

Pressure Range PSIG

Body Type

R56-219 R56-220 R56-221 R58-317 R58-318 R58-319

A A A B B B

LF25AUB-Z3 1/2 LF25AUB-Z3 3/4 LF25AUB-Z3 1

1/2" 3/4" 1/2" 3/4" 1"

25-75 psi 25-75 psi 25-75 psi 25-75 psi 25-75 psi 25-75 psi

Lead Free Copper Silicon Alloy Lead Free Copper Silicon Alloy Lead Free Copper Silicon Alloy

0009539 LFN55BM1-U 1/2 IN 0009589 LFN55BM1 U 3/4 0009639 LFN55BM1-U 1 IN

Brass Body Construction Brass Body Construction Brass Body Construction

1"

502

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