* s our clude EiE in FR r ng Now ADoduct offe LE pr Hydronic Heating Specialties

Footnotes: Teflon® is a registered trademark of the E. I. DuPont de Nemours and Company, Incorporated. Viton® is a registered trademark of DuPont Dow Elastomers. Watts product specifications in U. S. customary units and metric are approximate and are provided for reference only. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previ ously or subsequently sold.

Watts Quality Sets the Standard in Hydronics With Watts hydronic products, you get longer valve life, economical control of heating and cooling zones, energy savings for your customers and fewer callbacks. Watts products control and protect hydronic systems and your reputation. No one else offers Watts quality and design. Table of Contents Hydronic Product Diagram - - - - - - - 2 Feed Water Pressure Regulators and Dual Controls 911, 911S - - - - - - - - - - - - - - - - - - 1156F - - - - - - - - - - - - - - - - - - - - - 1450F - - - - - - - - - - - - - - - - - - - - - N256, T156B - - - - - - -...

Watts Hydronic Heating Specialties 11 374A, LF174A/174A, 740 Hot Water Boiler Safety Relief Valve - - - - - - - - - - - - - - - - - - - - - - - - - - 14 12 LFTP Test Plug - - - - - - - - - - - - - - - - - - - - - - 47 - 13 LF6000 Ball Valve, LFFBV-3C Series Ball Valve- - 42, 44 14 DuoVent Automatic Float Vent Valve or HAV- - - - - 17 15 FV-4M1 Float Vent - - - - - - - - - - - - - - - - - - - - - 16 5 ETX, ETSX Expansion Tank - - - - - - - - - - - 24-25 - - 16 LFU5B-Z3, LF25AUB-Z3 Water Pressure Reducing - Valve- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-9 17 SCV 1⁄8" Service...

Feed Water Regulators & Dual Controls Used to fill the boiler and system piping with water and to maintain water pressure in the system at all times. Feed water pressure regulators are also used to provide make up water to the system in the event of system leaks. The fast fill feature is used for speed filling and purging of air from the piping on the initial fill. Dual control units combine the fill valve with a safety pressure relief valve. High Capacity Feed Water Regulators and Dual Control Units Speed filling, flushes sys­ em and t accelerates air purging System Purging Ability with Various...

Series 1156F Feed Water Pressure Regulators Iron or Bronze Body Size: V2" (15mm) Model S1156F features highest purging capacity furnished with union solder inlet connection performance as well as simplified servicing. Pressure - Temperature Maximum working pressure: 100psi (6.9 bar) Maximum temperature: 212°F (100°C) Adjustment range: 10 - 25psi (68.7 - 172.4 kPa) Set at 15psi (103.4 kPa) Models 1156F - Identical to the above except it is furnished with threaded inlet connection. SB1156F - Identical to S1156F except it has a bronze body. T1156F, TB1156F - Identical to the above except it is furnished...

Series 1450F Iron Body Dual Control Size: Vi" (15 mm) Combines construction features of Model 1156F and rugged iron body diaphragm relief valve, set at 30psi (206.9 kPa). Pressure - Temperature Maximum Working Pressure: 100psi (6.9 bar) Maximum Temperature: 212°F (100°C) Models T1450F - Identical to above except furnished with union threaded inlet connection. S1450F - Identical to above except furnished with union solder inlet connection. For additional information, reference literature ES-1450F. Model T145B Bronze Body Dual Control Size: Vi" (15 mm) All bronze dual control consisting of feed...

Water Pressure Reducing Valves Series LFU5B Water Pressure Reducing Valves** Sizes: 1⁄2" – 2" (15 – 50mm) LEAD FREE* Series LFU5B Water Pressure Reducing Valves are designed to reduce incoming water pressure to a sensible level to protect plumb ing system components and reduce water consumption. The LFU5B features Lead Free* construction to comply with Lead Free* installation requirements. This series is suitable for water supply pressures up to 300psi (20.7 bar) and may be adjusted from 25 – 75psi (172 – 517 kPa). The standard setting is 50psi (345 kPa). All parts are quickly and easily serviceable...

Meets requirements of ASSE Standard 1003; (ANSI A112.26.2); CSA Standard B356; Southern Standard Plumbing Code and listed by IAPMO. Pressure - Temperature Temperature Range: 33°F - 160°F (0.5°C - 71°C) Maximum Working Pressure: 300psi (20.7 bar) Adjustable Reduced Pressure Range: 25 - 75psi (172 - 517 kPa) Standard Reduced Pressure Setting: 50psi (345 kPa) For additional information, reference literature ES-LFU5B. Dimensions — Weights A - LFU5B-Z3 Ai - LFU5B-S-Z3 Et - NPT Engagement for tight joint Es - Female sweat socket depth Eqc - Quick-Connect MODEL SIzE (DN) DIMENSIONS WEIGHT t...

Water Pressure Reducing Valves Series LF25AUB-Z3 Water Pressure Reducing Valves** Sizes: 1⁄2"– 2" (15 – 50mm) LEAD FREE* Series LF25AUB-Z3 Water Pressure Reducing Valves are designed to reduce incoming water pressure to a sensible level to protect plumb ing system components and reduce water consumption. This series is suitable for water supply pressures up to 300psi (20.7 bar) and may be adjusted from 25 – 75psi (172 – 517 kPa). The LF25AUB-Z3 features Lead Free* construction to comply with Lead Free* installation require ments. The standard setting is 50psi (345 kPa). All parts are quickly...

Dimensions — Weights A - LF25AUB-z3 A1 - LF25AUB-S-z3 A2 - LF25AUB-DU-LF-z3 B -LF25AUB-DU-z3 B1 - LF25AUB-S-DU-z3 B2 -LF25AUB-DU-THDxPEX-z3 ET - NPT Engagement for tight joint ES - Female sweat socket depth EP - PEX end connection FQC - Quick-Connect union * Dimension includes optional gauge For additional information, reference literature ES-LF25AUB.

Used on boiler feed lines to prevent boiler water from returning to the potable water system. Boiler water may contain chemicals and bacteria that could contaminate the potable water system. Series 9D Dual Check Valve with Intermediate Atmospheric Vent Sizes: V2" M3 (15mm), 3/4" M2 (20mm) Series 9D is designed to protect drinking water supplies from dangerous cross -connections in accordance with national plumbing codes and water authority requirements for non - potable service applications for smaller supply lines such as laboratory equipment, processing tanks, sterilizers, and dairy equipment....