Flowserve Nordstrom 50165 User Instructions

Dynamic balance iron plug valve

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USER INSTRUCTIONS

Nordstrom

Installation

Operation

Figure 50165 and 50169

Dynamic Balance

Iron Plug Valve

Maintenance

FCD NVENIM2006-00 09/05 (Replaces IOM-50169)

Experience In Motion

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Summary of Contents for Flowserve Nordstrom 50165

Page 1 USER INSTRUCTIONS Nordstrom Installation Operation Figure 50165 and 50169 Dynamic Balance Iron Plug Valve ® Maintenance FCD NVENIM2006-00 09/05 (Replaces IOM-50169) Experience In Motion...
Page 2: Table Of Contents
Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 Contents Valve Selection Introduction Pressure/Temperature Rating Bending Strength Pressure Surge Throttling Service Temperature Changes Over-pressurization Trapped Pressure Material Compatibility Operating Effort Shipping and Storage Introduction Handling Storage Installation Introduction...
Page 3 Basic Sealant Injection Valve Maintenance: Troubleshooting Detail Sketch: Stem End Detail – Wrench Operated Valve Detail Sketch: Stem End Detail – Gear Operated Valve Detail Sketch: Cover End Detail – Ball Seat Arrangement Technical Data: Procedure for Tightening Cap Screws flowserve.com...
Page 4: Valve Selection
Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 Valve Selection Introduction It is beyond the scope of this manual to make recommendations for specific applications because misapplication of a valve type could result in operating problems that adversely affect system safety and efficiency.
Page 5: Bending Strength
“blow off’ valves, located at the low point in the system, are needed to ensure condensate drainage. Operation and maintenance personnel must be aware of the function of these devices in relationship to the “shutoff’ valve operation and the necessity for them to function properly. flowserve.com...
Page 6: Throttling Service
Likewise, with gas flow under severe throt- tling conditions, shock waves can possibly result in damage to the system. Flowserve Nordstrom Valves should be consulted on proper valve selection for throttling applications. Temperature Changes Valve structural materials expand with rising temperatures and contract with falling temperatures.
Page 7: Trapped Pressure
Oversize handwheels and gear operators will require specific operator training to prevent applying damaging overloads. NAI should be consulted for specific instruction on operating torques. flowserve.com...
Page 8: Shipping And Storage
Shipping and Storage Introduction Flowserve recognizes the importance of maintaining the as-built condition of valves, and has prepared this section to call attention to important considerations in the handling of valves prior to installation. Industrial valves as manufactured, tested, and ready for delivery to users, are typically well-designed products that are property fabricated and inspected and capable of giving satisfactory service.
Page 9: Storage
Protection against weather should be provided. Ideally, valves should be kept indoors with actual valve temperatures always higher than the dew point. Valves should be supported off the ground and/or pavement and protected by a watertight cover if outdoor storage is unavoidable. flowserve.com...
Page 10: Installation
Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 Installation Introduction A most critical point in time in the life of an industrial valve is the moment of installation. The possibili- ties for degradation of the valve are numerous. Conversely, the exercise of proper care in this process will assure increased probability of trouble-free valve service.
Page 11: Flanged Joint Assembly
What the Codes and Standards say about flanges and gaskets aSME B16.1 covers Class 125, 250, and 800 Cast Iron Flanges and Flanged Fittings. Informa- tion about these flanges is shown in the Flowserve Nordstrom Iron Plug Valves brochure under Drilling Templates, Flange Dimensions, and Bolting Data. aSME B16.1, Section 5.2 recommends the use of bolting conforming to ASTM A307 Grade B for installing items that have cast iron flanges.
Page 12 Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 MSS SP-92 in part, reads as follows: Section 3.4c Cast iron flanges are less “forgiving” of improper installation than flanges of ductile materials. The use of lower strength bolting is recommended to reduce the possibility of overstressing the flanges by excessive flange bolt preload.
Page 13: Testing And Adjustment
Caution: If the system is being cleaned with a cleaning material (gas or liquid) different from the line media, the effect of the cleaning material upon the valve sealant must be evaluated prior to use. flowserve.com...
Page 14: Operation And Maintenance
Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 Operation and Maintenance Introduction An industrial valve, reasonably matched to a particular service application and properly installed in a piping system, can be expected to have a long service life with a minimum of attention. Unlike totally passive components such as pipe fittings, vessels, etc., valves are a special kind of “machinery”...
Page 15: Operation, Power Actuated Valves
This, in addition to the self-cushioning capacity of the fluid column in the upstream pipe, effectively precludes any significant problem of pressure surge in rapidly closed valves in gaseous fluid piping. flowserve.com...
Page 16: Noise
Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 In contrast, the inertia of the fluid column in a liquid pipeline is not so easily overcome. Its relative incompressibility provides no such cushion or proximity-limiting mechanism. The entire upstream fluid mass is required to be decelerated at once by the closing valve and the resulting pressure surge may be of sufficient magnitude to cause structural damage.
Page 17: Maintenance
Maintenance of pressure boundary parts and the static seal of assembly joints are not usually considered to be a problem. However, continuous monitoring is recommended to confirm that problems do not occur. The need for paint protection against corrosion of exposed piping should be obvious from normal observations of the system. flowserve.com...
Page 18: Dynamic Balance Iron Plug Valve Maintenance
If anything in this manual is unclear, contact the Flowserve Nordstrom Valves Customer Service Depart- ment for assistance. Flowserve and its employees are in no way responsible for damage to property or for personal injury or death that may result through the use or misuse of any Flowserve Nordstrom Valves product, publica- tion, audio or visual aid.
Page 19: Customer Service
DVDs that allow training at your convenience. For your Dynamic Balance iron plug valves, we suggest: • Operation and Maintenance of Nordstrom 400-D Handgun and Hypregun-Plus To obtain copies of this training video, contact your Flowserve Sales Representative or Customer Service Representative.
Page 20: When You Call Or Write
Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 When You Call or Write... Be sure you provide the correct information and/or part numbers for your Dynamic Balance plug valve. Over the years there have been design changes due to our continuing effort make a great valve even better.
Page 21: Sealant System
Sealant System Flowserve Nordstrom Valve Sealant functions as an integral part of the lubricated plug valve. Sealant is the basic improvement over the dry plug cock. In order for sealant to be effective, the valve requires a system of internal channels - the Nordstrom Sealdport Grooving System.
Page 22: Design Features
Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 Design Features To better understand the Dynamic Balance plug valve, listed are the principal design features. Refer to pages 34–37 for illustrations. 1. Stem Wrench operated stems have wrench flats which align the wrench handle with the flow passage of the Plug, thus becoming an easily visible position indicator.
Page 23: Sealants
Installation, Operation, and General Maintenance Manual for Nordstrom and Dynamic Balance Plug Valves. Flowserve Nordstrom Valves supplies many different types of sealant for use in plug valves. When selecting Sealant for your specific services, please refer to the Nordstrom Valve Sealants brochure, or...
Page 24: Sealant Injection Equipment
Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 Sealant Injection Equipment So that Sealant injection can be performed easily, Nordstrom offers five designs of heavy-duty valve sealant injection equipment. 1. 400-D Hydraulic Hand Gun – uses “J” stick sealant and Gun Pak sealant 2.
Page 25 (approximately 20 degrees) several times. 6. After you have completed the injection of sealant, relieve the pressure within the injection equip- ment and remove it from the Sealant Fitting. flowserve.com...
Page 26: Valve Maintenance: Troubleshooting
Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 Valve Maintenance: Troubleshooting This section lists common problems you may encounter with the Dynamic Balance plug valve, the probable causes, and solutions that should remedy the situations. The listed procedures are intended to serve as guides to remedy conditions you may encounter when performing maintenance on your valve.
Page 27 Repeat steps c) and d) until the Gear Housing has been rotated 180 degrees. g) Replace the Gear Housing bolting. h) Inject sealant – see pages 24 and 25. Adjust the Plug as described in Valve Seat Leakage; Cause 2 Steps 3 through 6. flowserve.com...
Page 28 Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 Problem: Operation difficulties Cause 1: Insufficient sealant in the valve Solution: The lack of sufficient sealant to adequately fill and pressurize the sealant system is the most common problem associated with a valve being hard to operate.
Page 29 5. If valve operation is improved by this procedure but the valve is still not operating properly, repeti- tion of this procedure may be required. 6. Under conditions of severe sealant deterioration, VXX Valve Purge may not be capable of dislodging sealant residues and valve disassembly and physical cleaning may be required. flowserve.com...
Page 30 Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 Cause 2: Sealant Fitting blockage Solution: In the event no sealant is being injected into the valve even though the sealant equipment is pressurized, the Sealant Fitting may be blocked and should be replaced. Caution: The following procedures should be performed with extreme caution.
Page 31 8. Place the new Gasket onto the Body. 9. Place the Ball on the Plug. 10. Place the Ball Seat and O-rings into the Cover. 11. Place the Cover on the valve. 12. Lubricate the Cover Bolts with a quality thread lubricant. flowserve.com...
Page 32 Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 13. Insert the Cover Bolts, but do not screw the bolts all the way down. 14. Tighten the Cover Bolts, using the appropriate torque values from Table 1 and the procedure for Tightening Cap Screws and Nuts.
Page 33 (located behind the Sealant Fitting). Follow the Steps as listed in Cause 3 of Sealant System Blockage. Problem: Check Valve leakage Cause 1: The Check Valve ball is not seating properly. Solution: Clean or replace the Check Valve. Follow the Steps as listed in Cause 3 of Sealant System Blockage. flowserve.com...
Page 34: Detail Sketch: Stem End Detail - Wrench Operated Valve
Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 Detail Sketch: Stem End Detail – Wrench Operated Valve item Description Balance Ball Spring Check Valve Sealant Fitting O-Ring O-Ring Plug Stem Gland Cap Screw Stop Collar Ball Retaining Washer Retainer Weather Seal...
Page 35: Detail Sketch: Stem End Detail - Gear Operated Valve
Detail Sketch: Stem End Detail – Gear Operated Valve ADAPTER PLATE SIZE 20 ONLY item Description Balance Ball Spring Check Valve Sealant Fitting O-Ring O-Ring Plug Stem O-Ring Gland Cap Screw Ball Retaining Washer Gearing Lock Washer Cap Screw Adapter Plate (size 20 only) flowserve.com...
Page 36: Detail Sketch: Cover End Detail - Ball Seat Arrangement
Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 Detail Sketch: Cover End Detail – Ball Seat Arrangement item Description Body Plug Cover Cover Cap Screw Thrust Ball Ring Gasket O-Ring Adjusting Screw Adjusting Screw Cap Ball Seat...
Page 37: Technical Data: Procedure For Tightening Cap Screws
Technical Data: Procedure for Tightening Cap Screws note: This procedure is intended only as a guide. It is impossible for Flowserve Sulphur Springs Opera- tions to know actual field-site conditions, so your judgement and experience must be exercised. 1. Inspect applicable parts to be sure that: a) Tapped holes are clean, dry, and free of foreign matter.
Page 38 Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 This page is intentionally blank.
Page 39 Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05 This page is intentionally blank. flowserve.com...
Page 40 Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended function safely during its useful life. However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used in numerous applications under a wide variety of industrial service conditions.

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Nordstrom 50169