Instruction Manual for EMERSON models including: Max-Flo Series Spence Max-Flo Series High Capacity Steam Traps, Max-Flo Series, Spence Max-Flo Series High Capacity Steam Traps, High Capacity Steam Traps, Capacity Steam Traps, Steam Traps, Traps
Instruction Manual VCIMD-14919 November 2021 Max-Flo Series Spence Max-Flo Series High Capacity Steam Traps WARNING Failure to follow these instructions or to properly install and maintain this equipment could result in an explosion, fire and/or chemical contamination causing property damage and personal injury or death. Max-Flo Series steam trap must be installed, operated and maintained in accordance with federal, state and local codes, rules and regulations and Emerson instructions. If leak develops in the system, service to the unit may be required. Failure to correct trouble could result in a hazardous condition. Installation, operation and maintenance procedures performed by unqualified personnel may result in improper adjustment and unsafe operation. Either condition may result in equipment damage or personal injury. Only a qualified person shall install or service the Max-Flo Series steam trap. Introduction Scope of the Manual This manual provides instructions for installation, maintenance and parts ordering for the Max-Flo Series. Product Description Max-Flo Series are float and thermostatic steam traps. Float actuates the valve via a hinged lever and linkage. Air vent is balanced-pressure design with stainless steel welded encapsulated bellows capable of discharging air and non-condensable gases continuously for heavy load process.. Trap is cast iron bodied suitable for pressures to 175 psi / 12.1 bar with NPT connection. Figure 1. Max-Flo Series Steam Trap Principle of Operation On startup, air and non-condensible gases enter the trap and are automatically vented through an accurate balanced-pressure internal thermostatic air vent. As condensate enters the trap, the float and lever mechanism is raised, lifting the valve off the seat, discharging the condensate. Condensate will continue to be discharged at the same rate at which it is entering. Any air or non-condensible gas that may accumulate will be continually and efficiently passed by the thermostatic air vent. Installation WARNING Personal injury, property damage, equipment damage or leakage due to escaping steam or bursting of pressure containing parts may result if this equipment is over pressured or is installed where service conditions could exceed the limits given in the www.SpenceValve.com Max-Flo Series Specifications The specifications section on this page provide the ratings and other specifications for the Max-Flo Series. Available Configurations Type HC-15: Steam pressures to 15 psig / 1.03 barg Type HC-30: Steam pressures to 30 psig / 2.07 barg Type HC-75: Steam pressures to 75 psig / 5.17 barg Type HC-125: Steam pressures to 125 psig / 8.62 barg Type HC-175: Steam pressures to 175 psig / 12.1 barg Maximum Operating Pressure(1) 175 psig / 12.1 barg Maximum Allowable Pressure(1) 175 psig / 12.1 barg Maximum Operating Temperature(1) Saturated at pressure Maximum Allowable Temperature(1) 377°F / 192°C Materials of Construction Body and Cover: Cast iron Valve, Pin and Seat: Hardened Stainless steel Float: Stainless steel Lever Assembly: Stainless steel Thermostatic Air Vent: Stainless steel cage and Thermal element Cover Bolts: Grade 5 Baffle: Stainless steel (NPS 2-1/2 / DN 65 units only) 1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded. specifications or where conditions exceed any ratings of the adjacent piping or piping connections. To avoid such injury or damage, provide pressure-relieving or pressure-limiting device. Max-Flo Series should be installed in an accessible position and location for easy servicing. The trap seat rating stamped on the nameplate, must be equal or greater than the maximum pressure differential across the trap. Install the trap straight and in a level position to ensure proper installation. 1. Determine where to install trap, based on the following requirements: a. The trap must be located as closed as possible, and below the equipment to be drained. b. The trap must be in a straight run of horizontal pipe as shown in Figure 2, and pitched to allow condensate to flow into trap inlet, and away from trap outlet. c. Allow for enough space around the trap for servicing which may include removal of the body or cover, depending on the model you are installing. 2. Install a Y-strainer with a Blowdown valve in a pipe, ahead of steam trap. This prevents dirt from entering trap. 3. Install union fittings and a shutoff valve in inlet pipe and outlet pipe. This allows trap to be isolated when servicing. 4. Install a test valve in outlet pipe, and cap it. This allows trap to be tested. Cap is used as safety precaution when unit is not being tested. 5. Blowdown piping using full steam pressure for five minutes. This cleaning process will remove debris from pipe and oil from system. Maintenance WARNING To avoid personal injury, property damage or equipment damage caused by sudden release of pressure or explosion of accumulated gas, do not attempt any maintenance or disassembly without first isolating the equipment from system pressure and relieving all internal pressure from the equipment. When checked regularly and properly maintained, the Max-Flo Series Float and Thermostatic Traps will provide optimum performance. 2 Max-Flo Series SUPPLY INLET VALVE EYE HOOK "Y" STRAINER INLET COVER BOLTS TRAP SUPPLY INLET VALVE "Y" STRAINER COVER BOLTS INLET DIRT POCKET DISCHARGE LINE DIRT POCKET DISCHARGE LINE OUTLET THERMOSTATIC VENT PIPE TO GRAVITY RETURN LINE TRAP PIPE SUPPORTS OUTLET TRAP NPS 2 / DN 50 DRAIN PLUG PIPE SUPPORTS SUPPORT FOOT DRAIN PLUG TRAP NPS 2-1/2 / DN 65 Figure 2. Max-Flo Series Steam Trap Typical Installation Recommended schedule: · Initially, every 2 to 3 days after startup until system is clean. · Due to normal wear that may occur, recommended to inspect the parts periodically and replace if necessary. Note The frequency of inspection depends on the severity of service conditions or the requirements of state and federal laws. 1. Inspect the joints for any leaks. Ensure to follow the "Removal from Service" and "Repair" procedure before addressing any joint leaks. 2. Clean strainers by opening blow down valve and allowing full steam pressure to flow out for a couple of minutes. Then, close valve. Removal from Service 1. Close inlet and outlet supply valves and allow unit to cool. If a test valve is installed, open this valve to relieve any pressure. 2. Remove drain plug to drain condensate from trap body. 3. Remove bolts that attach cover to body and remove trap body. Repair 1. With body assembly removed from trap cover, remove pin that holds lever assembly to yoke. Inspect seat and pin for wear, replace if worn. 2. Inspect thermostatic element by placing it in boiling water to see if it closes. If it doesn't close, replace it. 3. Check alignment of pin and seat, adjust or replace parts as necessary. See Table 1. 4. Check float ball for damage shake float to make sure there is no fluid inside float. Replace if necessary. 5. Clean gasket surfaces and install new cover gasket. 3 Max-Flo Series Table 1. HC Series - "Max-Flo" Super High Capacity F&T Steam Trap Parts PART Thermostat Lever and Valve Kit (Includes float lever, mounting pin and yoke, valve pin and seat) MODEL All Models NPS 2 / DN 50, HC-15 L&V NPS 2-1/2 / DN 65, HC-15 L&V NPS 2 / DN 50, HC-30 L&V NPS 2-1/2 / DN 65, HC-30 L&V NPS 2 / DN 50, HC-75 L&V NPS 2-1/2 / DN 65, HC-75 L&V NPS 2 / DN 50, HC-125 L&V NPS 2-1/2 / DN 65, HC-125 L&V NPS 1-1/4 / DN 32, HC-175 L&V NPS 1-1/2 / DN 40, HC-175 L&V PART Float Ball Kit (Includes float ball, mounting screw and washer) Cover Gasket Cover Casting Service Kit(1) 1. Includes thermostatic element, lever and valve kit, float ball kit, cover and cover gasket. NPS 2 / DN 50, HC-175 L&V NPS 2-1/2 / DN 65, HC-15 L&V MODEL NPS 1-1/4 / DN 32, HC-FLO NPS 1-1/2 / DN 40, HC-FLO NPS 2 / DN 50, HC-FLO NPS 2-1/2 / DN 65, HC-FLO NPS 1-1/4 / DN 32, HC-CG NPS 1-1/2 / DN 40, HC-CG NPS 2 / DN 50, HC-CGF NPS 2-1/2 / DN 65, HC-CG NPS 2 / DN 50, HC-CC NPS 2-1/2 / DN 65, HC-CC NPS 1-1/4 / DN 32, HC-KIT NPS 1-1/2 / DN 40, HC-KIT P/N WAL5891200 WAL5818101 WAL5819101 WAL5818102 WAL5819102 WAL5818103 WAL5819103 WAL5818104 WAL5819104 WAL5817105 WAL5817105 WAL5818105 WAL5819105 P/N WAL5817201 WAL5817201 WAL5818201 WAL5819201 WAL5817301 WAL5817301 WAL5818301 WAL5819301 WAL5818401 WAL5819401 WAL5816501 WAL5817501 Return to Service 1. Reinstall trap body assembly on cover. 2. Insert and securely tighten drain plug. 3. Open supply valve on trap outlet side, slowly open the supply valve to the trap inlet. 4. Check for leaks and normal operation. Parts Ordering When corresponding with your local Sales Office about Max-Flo Series, always reference the assembly number, see Table 1. SpenceValve.com Emerson Automation Solutions Americas McKinney, Texas 75070 USA T +1 800 558 5853 +1 972 548 3574 Europe Bologna 40013, Italy T +39 051 419 0611 Asia Pacific Singapore 128461, Singapore T +65 6777 8211 Middle East and Africa Dubai, United Arab Emirates T +971 4 811 8100 0011533 VCIMD-14919 © 2021 Emerson Electric Co. All rights reserved. 11/21 Spence is a mark owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are property of their prospective owners. The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without notice. Emerson Electric Co. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Emerson Electric Co. product remains solely with the purchaser.MCM Plus Adobe PDF Library 15.0; modified using iTextSharp™ 5.5.10 ©2000-2016 iText Group NV (AGPL-version)