Watts WATTS - 118946

Watts 0342691 30 PSI Pressure Relief Valve User Manual

Model: WATTS - 118946

הקדמה

This manual provides essential information for the proper installation, operation, and maintenance of the Watts Series 335 ASME rated Boiler Pressure Relief Valve. This valve is designed for hydronic systems, specifically for boilers up to 510,000 BTU at a 30 PSI (2.11 bar) set point. Its compact, all-bronze construction makes it suitable for various OEM boiler applications.

Watts 30 PSI Pressure Relief Valve, front view

פיגורע 1: פראָנט view of the Watts 30 PSI Pressure Relief Valve, showing the bronze body and the pressure relief lever.

זיכערקייַט אינפֿאָרמאַציע

Always follow local codes and regulations during installation and maintenance. Ensure the system is depressurized and cooled before attempting any work on the valve. Wear appropriate personal protective equipment (PPE).

סעטאַפּ און ינסטאַלירונג

The Watts 0342691 Pressure Relief Valve is designed for straightforward installation. It features a 3/4-inch female threaded inlet and a 3/4-inch FNPT outlet.

  1. צוגרייטונג: Ensure the boiler system is completely shut down, depressurized, and cooled. Drain any water from the system if necessary.
  2. Remove Old Valve (if applicable): Carefully unthread the existing pressure relief valve from the boiler.
  3. צולייגן פֿאָדעם פֿאַרזיגלער: Apply an appropriate thread sealant (e.g., PTFE tape or pipe dope) to the male threads of the new Watts valve.
  4. אינסטאַלירן נייַ ווענטיל: Thread the new valve into the boiler's pressure relief valve port. Tighten securely with a wrench, ensuring not to overtighten.
  5. Connect Discharge Piping: Attach appropriate discharge piping to the valve's outlet. This piping must be sized correctly and routed to a safe discharge point, preventing scalding or property damage.
  6. System Re-pressurization: Slowly re-pressurize the boiler system and check for any leaks around the newly installed valve and connections.
Watts 30 PSI Pressure Relief Valve, side view

פיגורע 2: זייַט view of the Watts 30 PSI Pressure Relief Valve, showing the compact design and connection points.

אַפּערייטינג פּרינסאַפּאַלז

The Watts 0342691 is an automatic pressure relief valve designed to protect hydronic heating systems from over-pressurization. It is factory-set to open at 30 PSI (Pounds per Square Inch). When the system pressure exceeds this set point, the valve will automatically open, discharging water to relieve the excess pressure and prevent damage to the boiler or system components. Once the pressure drops below the set point, the valve will automatically close.

The valve also features a manual test lever. This lever allows for periodic manual testing of the valve's operation. When the lever is lifted, the valve will open, discharging water. It is important to exercise caution when using the test lever, as hot water may be discharged.

וישאַלט

Regular maintenance ensures the longevity and proper function of your pressure relief valve.

טראָובלעשאָאָטינג

פּראָבלעםמעגלעך סיבהלייזונג
Valve constantly dripping or leaking
  • סיסטעם דרוק צו הויך
  • Sediment or debris under the seat
  • Worn or damaged internal components
  • Improper installation (e.g., insufficient thread sealant)
  • Check system pressure; ensure it is below 30 PSI.
  • Briefly lift the test lever to flush out debris.
  • If leaking persists, the valve may need replacement.
  • Re-install with proper thread sealant if leak is from threads.
Valve does not open when pressure is high
  • Valve seized due to corrosion or lack of use
  • Incorrect valve installed (wrong pressure setting)
  • Attempt to operate the manual test lever.
  • If it remains seized, the valve must be replaced immediately to prevent system damage.
  • Verify the valve's pressure rating matches system requirements.

ספּעסאַפאַקיישאַנז

Watts 30 PSI Pressure Relief Valve with dimensions shown against a hand

Figure 3: The Watts 30 PSI Pressure Relief Valve demonstrating its compact size, approximately 2.9 inches (7 cm) in height.

אַטריביוטווערט
מאָדעל נומערWATTS - 118946
מאַטעריאַלבראָנדז
אריינגאנג קאנעקשאן גרייס3/4 אינטשעס
ינלעט קאַנעקשאַן טיפּווייַבלעך געווינדעט
אָוטלעט קאַנעקשאַן גרייס3/4 אינטשעס
אָוטלעט קאַנעקשאַן טיפּFNPT
מאַקסימום אַפּערייטינג דרוק30 PSI (2.11 באַר)
BTU רייטינגביז 510,000 BTU
נומער פון פּאָרץ2
דימענסיעס (L X W X H)3 X 2.3 X 1.8 אינטשעס
וואָג0.01 ounces (Note: This seems unusually low, likely a data entry error in source. Actual weight for such a valve would be higher.)
באַשרייַבונג באגעגנטASME Section IV

וואָראַנטי אינפֿאָרמאַציע

Specific warranty details for this product are not provided in this manual. Please refer to the manufacturer's official website or contact Watts customer service for current warranty terms and conditions.

שטיצן און קאָנטאַקט

For technical assistance, replacement parts, or further information, please contact Watts customer support or visit their official webפּלאַץ.

Watts Official Webפּלאַץ: www.watts.com

Watts Store on Amazon: Visit the Watts Store

פֿאַרבונדענע דאָקומענטן - WATTS - 118946

Preview וואטס דרוק רעדוצירער ווענטיל מיט הידראַולישע טשעק פֿונקציע - ומבאַפלעקט סעריע
טעכניש איבערview פון די וואטס ACV קאמבינאציע דרוק רעדוסער און טשעק ווענטיל, דעטאלירנדיג זיין אפעראציע, אינסטאלירונג גיידליינז, און א ליסטע פון ​​פארבונדענע קאנטראל ווענטיל מאדעלן.
Preview Watts W-M115 ACV Pressure Reducing Valve: Specification & Installation Guide
Comprehensive guide detailing the specifications, dimensions, flow rates, operating principles, installation, and start-up procedures for the Watts W-M115 ACV Pressure Reducing Valve. Essential information for industrial and commercial applications.
Preview Watts BMS Flood Sensor Retrofit Connection Kit Installation Guide
This guide provides detailed installation instructions for the Watts BMS Flood Sensor Retrofit Connection Kit (Model IS-RFK-FS-ReliefValve-BMS). It covers kit components, requirements, preparation, installation steps, wiring diagrams, and warranty information for monitoring relief valve discharge lines.
Preview ספּעסאַפאַקיישאַנז טעקניקס סעריע וואַטץ SL100XL, L100XL, LL100XL, LLL100XL
ספּעסיפיקאַטיאָנס טעקניקס קאַמפּליץ גיסן די סאָופּאַפּעס פון די טשאַרדזשינג טעמפּעראַטור און דרוק צו אַלע וואַטץ סעריע SL100XL, L100XL, LL100XL און LLL100XL. דעטאַילס אויף ליי קעראַקטעריסטיקס, דימענשאַנז, ייַנמאָנטירונג און סעקוריטé פֿאַר טשאַופע-אָו.
Preview Installation, Operation, and Maintenance Manual for Watts LFM115-74/LFM6115-74 Pressure Reducing Control Valves
Comprehensive guide for the installation, operation, maintenance, and troubleshooting of Watts LFM115-74 and LFM6115-74 Pressure Reducing Control Valves with Low Flow By-Pass. Includes detailed instructions, diagrams, and maintenance schedules.
Preview וואַטס LFN45B סעריע וואַסער דרוק רעדוצירן ווענטיל ינסטאַלירונג און וישאַלט גייד
אן אויספירלעכע אנווייזונג פארן אינסטאלירן, אויפהאלטן, און פראבלעם-לייזן דעם וואטס LFN45B סעריע וואסער דרוק רעדוסער ווענטיל. כולל זיכערהייט ווארענונגען, אַדזשאַסטמענט פראצעדורן, און וואראנטי אינפארמאציע.