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Nexus NexPress Installation Operation & Maintenance

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INSTALLATION-OPERATION-MAINTENANCE
Effective Date: February 13, 2019
Please read and follow instructions within. Disregarding these instructions may
result in poor performance and / or product failure and void your warranty.
Nexus Valve, Inc.
Tel 888.900.0947
Fax 800.900.8654
9982 E. 121st Street
Fishers, IN 46037
www.nexusvalve.com
info@nexusvalve.com

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  • Page 1 INSTALLATION-OPERATION-MAINTENANCE Effective Date: February 13, 2019 Please read and follow instructions within. Disregarding these instructions may result in poor performance and / or product failure and void your warranty. Nexus Valve, Inc. Tel 888.900.0947 9982 E. 121st Street www.nexusvalve.com Fax 800.900.8654 Fishers, IN 46037 info@nexusvalve.com...

  • Page 2: Table Of Contents

    UltraMatic™ ..............................11 Dynamic™ ............................... 18 UltraXB™ Orturi .............................. 23 UltraMB™ ................................ 26 Nextrol™ ................................. 33 UltraMBF™..............................38 Nexus Venturi – Model NV™ ..........................44 Strainex™ ................................ 47 UltraY™ ................................49 UltraX™ ................................52 UltraNXP™ ..............................53 UltraU™ ................................54 Valves for Actuators (UMA / MBA) ........................

  • Page 3: Limited Warranty

    Warranty Period. Various other products supplied through Nexus from an other manufacturer, such as temperature control valves, shall be subject to that manufacturers’ warranty. Any misapplication, tampering, adjusting, abuse or other changes in the field to Nexus products will result in the automatic voiding of the Nexus limited warranty.

  • Page 4: General Information

    DO NOT PLACE WRENCH / TOOL ON VALVE BODY! The threads provided on Nexus Valve union connections are straight threads with no taper, conform to the ANSI/ASME B1.20.7-1991 American National Standard for Hose Coupling Threads (NPSH threads), and require an o-ring or gasket per design to seal.
  • Page 5 NexPress™ Connections The NexPress™ connection is for use with Types K, L, and M hard copper tubing. The maximum working pressure on the NexPress™ fitting is 200 psi and is manufactured for water and water/glycol systems. For the connection to work “leak free”...
  • Page 6 NexLok™ and NexLok™ LD connections are for use with ASTM B88 hard drawn and annealed Type K,L, and M copper tubing ½” through 2” and with ½” through 2” PEX tubing with a Nexus Tube Liner. The NexLok™ fitting is designed for 1/2 “ to 1“ tubing and is rated for temperatures of 0⁰F to 200⁰F with a maximum working pressure of 250 PSI.
  • Page 7 2” 2¾” • A Nexus Tube liner / PEX insertion sleeve must be inserted into the PEX tubing before inserting into the NexLok™ connection. • Holding the fitting firmly, insert the tube straight into the fitting with a twisting motion until the depth mark on the tube is aligned with the end of the fitting.
  • Page 8 Ensure water pressure is removed from piping and the piping section isolated. • Using a the adjustable spanner wrench from Nexus, place the wrench tangs in the opposing slots in the end cap and loose the end cap by turning wrench counter clock-wise (Fig 1).
  • Page 9 • Slide the cap away from the fixed end on the pipe. • Take the appropriate sized demount ring provided by Nexus, and snap it over the pipe between the cap and grip ring (Fig 2). • Ensure the tapered end of the demount ring is facing the grip ring.
  • Page 10 GENERAL INFORMATION If necessary, apply pipe sealant to pipe threads per industry standard practice. Note that Nexus Valve supplies some male thread components with pre-applied Loctite® sealant; while found to be an effective timesaver, this provision is a convenience feature only and the performance of this sealant is not warranted.
  • Page 11 NPT Accessory Installation Procedure Most products come assembled to factory specifications. Accessories on valves larger than 2-1/2” do not come assembled. Nexus Valve recommends tightening accessories to the following torque specifications: • Accessories used in the 1/4” NPT to 13 - 15ft-lb.
  • Page 12 • Accessories used in the 3/4” NPT to 23 - 30 ft-lb. • Thread sealant is pre-applied on most Nexus Valve supplied accessory MNPT connections. Valve Identification UM and UMS valves are shipped with a standard body identification tag located on the top of the handle or body. This tag includes the following information: flow rate (GPM), valve size, direction of flow, and location information (if provided).

  • Page 13: Ultramatic

    Each UltraMatic™ has an internal cartridge that is factory-set to a specific flow rate (GPM). This flow rate cannot be adjusted in the field. Contact your local Nexus Valve representative if a different GPM is required. See page 17 for instructions to replace the cartridge if this becomes necessary.
  • Page 14 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAMATIC™ Standard Configuration Alternate Configuration Port 1 Port 1 Port 2 Port 2...
  • Page 15 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAMATIC™ UltraMatic™ Model UMF The UltraMatic™ Model UMF is a simple FNPT x FNPT pressure independent automatic flow control valve (AFCV).
  • Page 16 12”. Straight Run Requirements Nexus Valve recommends following ASHRAE plumbing standards for control valves (ASHRAE Handbook– HVAC Systems and Equipment—Hydronic Heating and Cooling Systems Design—Balance Fittings). Avoid placing UMW type valves at pump discharge, immediately after 90’s or directly coupled to eccentric...
  • Page 17 Since the GPM cannot be adjusted in the field, the pressure/temperature ports are supplied for flow verification purposes only. A meter kit, such as Nexus Valve’s # MKA, may be used to assure that the valve is operating in its specified spring range. If the pressure drop across the valve falls within the operating range 2-45 PSID or 5-50 PSID, then the GPM will be in the specified flow range.
  • Page 18 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAMATIC™ Refer to page 69 for meter kit operating instructions. Maintenance • UltraMatic™ UM does not require any maintenance under normal operating conditions.
  • Page 19 Slowly open isolation valve. Purge air and FKM O-Ring check for leaks. Chamber Cap Some valves may come with a cartridge adapter. • Nexus Valve Tool Kit Part # TK is required Cartridge for replacing the cartridges. Retaining • Isolate the flow to the UltraMatic™, remove...

  • Page 20: Dynamic

    To achieve maximum performance, the elimination of air in the fluid is required. Do not back flush with the cartridge in the body. Nexus Valve recommends using an UltraBK™ Series bypass and flushing kit for flushing the hydronic system prior to start up and after periodic maintenance.
  • Page 21 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com DYNAMIC™ Straight Run Requirements Dynamic™ does not typically require any straight pipe runs up or downstream. Changes in pipe diameter size at the valve inlet may cause turbulence impacting pressure drop readings.
  • Page 22 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com DYNAMIC™ Accessory Port Locations Dynamic™ comes equipped with two (2) PT test plugs. Standard configuration will have the port # 1 designated for high-pressure and port # 2 for low-pressure.
  • Page 23 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com DYNAMIC™ Dynamic™ Flow Chart...
  • Page 24 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com DYNAMIC™ Pre-setting Data DC050L DC050S DC050H DC075S DC075H DC100S DC100H DC125H DC150S DC200H 100% 0.52...

  • Page 25: Ultraxb™ Orturi

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAXB™ ORTURI UltraXB™ Orturi The UltraXB™ Orturi is a manually adjustable modified venturi circuit balancing valve.
  • Page 26 A differential pressure meter kit, such as Nexus #MKM models, must be used to measure the differential pressure in inches of water column across the modified venturi. If using a Nexus Valve meter kit, connect the red hose to the upstream, high-pressure port (usually in port #1). The green hose should be connected to the low pressure port (always in port #2).
  • Page 27 UltraXB™ does not require any maintenance under normal operating conditions. • It is recommended to visually inspect products on regular intervals. Flow Charts Full scale flow charts can be obtained in the Nexus Valve Products Catalog as well as on-line at www.nexusvalve.com.

  • Page 28: Ultramb

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAMB™ UltraMB™ General Information The UltraMB™ is a multi-turn manually adjustable balancing valve with an integrated isolation valve and union end.
  • Page 29 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAMB™ Accessory Locations Standard Configuration Alternate Configuration Port 1 Port 1 Port 2...
  • Page 30 A differential pressure meter kit, such as Nexus #MKM models, must be used to measure the differential pressure in inches of water column across the modified venturi. If using a Nexus Valve meter kit, connect the red hose to the upstream, high-pressure port (usually in port #2 or 4). The green hose should be connected to the low pressure port (always in port #1).
  • Page 31 ULTRAMB™ Flow Charts & Flow Calculators When balancing, refer to the following flow charts or use the hand calculators Full scale flow charts can be obtained in the Nexus Valve Products Catalog as well as on-line at www.nexusvalve.com. Basic Calculator...
  • Page 32 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAMB™ Flow Chart (½”, ¾”L, 1”L) Flow Chart (¾”, 1”, 1¼”L)
  • Page 33 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAMB™ Flow Chart (1¼”, 1½”) Flow Chart (2”, 2½”)
  • Page 34 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAMB™...

  • Page 35: Nextrol

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com NEXTROL™ Nextrol™ Nextrol™ is a manually adjustable balancing valve and metering station which uses the TwinTube™ pitot tube for accurately measuring differential pressure.
  • Page 36 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com NEXTROL™ General Installation Notes • Installation of a y-strainer is recommended upstream of any control valve or balancing device.
  • Page 37 Meter Kits A DP meter kit, such as Nexus #MKM models, must be used to measure the differential pressure. If using a Nexus Valve meter kit, connect the red hose to the high-pressure port, typically indicated by the red cap, of the TwinTube™, and the green hose to the low-pressure port of the TwinTube™, typically indicated by a green...
  • Page 38 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com NEXTROL™ TwinTube™ Function The TwinTube™ pitot produces a differential pressure (DP) signal proportional to the square of the flow rate.
  • Page 39 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com NEXTROL™ Nextrol™ / TwinTube™ Flow Chart Full scale flow charts can be obtained in the Nexus Valve Products Catalog as well as on- line at www.nexusvalve.com.

  • Page 40: Ultrambf

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAMBF™ UltraMBF™ The UltraMBF™ is a manually adjustable balancing valve where adjustment is required at strategic points to improve the efficiency of the system.
  • Page 41 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAMBF™ Straight Run Requirements The UltraMBF™ requires a minimum of five (5) straight upstream pipe diameters and two (2) downstream.
  • Page 42 The UltraMBF™ does not require maintenance under normal operating conditions. • It is recommended to visually inspect products on regular intervals. Flow Charts & Calculators Full scale flow charts can be obtained in the Nexus Valve Products Catalog as well as on-line at www.nexusvalve.com. Basic Flow Calculator...
  • Page 43 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAMBF™ Nomograph Calculator MBF Flow Chart 2½”...
  • Page 44 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAMBF™ MBF Flow Chart 3” MBF Flow Chart 4”...
  • Page 45 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAMBF™ MBF Flow Chart 5” MBF Flow Chart 6”...

  • Page 46: Nexus Venturi - Model Nv

    NEXUS VENTURI – MODEL NV™ Nexus Venturi – Model NV™ The Nexus Venturi is a manually adjustable balancing valve and metering station which uses a precision venturi tube for accurately measuring differential pressure. Please note that the Nexus Venturi accessories may be packaged separately to avoid damage during shipping.
  • Page 47 Meter Kits A DP meter kit, such as Nexus #MKM models, must be used to measure the differential pressure. If using a Nexus Valve meter kit, connect the red hose to the high-pressure port, typically indicated by a red cap, and the blue hose to the low-pressure port, typically indicated by a green cap.
  • Page 48 The NV™ does not require maintenance under normal operating conditions. • It is recommended to visually inspect products on regular intervals. Nexus Venturi Flow Chart Full scale flow charts can be obtained in the Nexus Valve Products Catalog as well as on-line at www.nexusvalve.com.

  • Page 49: Strainex

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com STRAINEX™ Strainex™ General Strainex™ is a cast iron, flanged pipeline y-strainer and metering station. Accessories for the Strainex™ are packaged separately to avoid damage during shipping.
  • Page 50 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com STRAINEX™ • As allowed by the flange pattern, the Strainex™ body and/or butterfly valve may be rotated to any orientation in the pipeline.

  • Page 51: Ultray

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAY™ UltraY™ General The UltraY™ is a combination y-strainer, ball valve, and union. In addition to being used as a strainer, it can be used to isolate hydronic equipment for repairs and/or to drain the system.
  • Page 52 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAY™ Models YSS and YSF Models YSS and YSF are part of the UltraY™ family but do not include all of the same features as the UltraY™.
  • Page 53 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAY™ Screen FKM O-Ring Chamber Cap Blowdown / Drain Valve...

  • Page 54: Ultrax

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAX™ UltraX™ General UltraX™ is a combination ball valve and union with three (3) 1/4” accessory ports.

  • Page 55: Ultranxp

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRANXP™ UltraNXP™ General The UltraNXP™ is a combination ball valve and union with one (1) 1/4” accessory port.

  • Page 56: Ultrau

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAU™ UltraU™ General UltraU™ Unions can be used for easy removal of hydronic equipment for repairs and/or to drain the system.

  • Page 57: Valves For Actuators (Uma / Mba)

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com VALVES FOR ACTUATORS (UMA / MBA) Valves for Actuators (UMA / MBA) General Information The UltraMatic™...
  • Page 58 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com VALVES FOR ACTUATORS (UMA / MBA) • Installation of a y-strainer upstream from the control valve is recommended for life and performance of the Model UMA and MBA.
  • Page 59 Important considerations when selecting an Actuator for the Nexus Valve UMA / MBA • Check the Actuator Matrix in the Nexus Valve TCV Catalog for actuators selected for mounting on our valve. If the matrix does not meet your criteria ensure the following when selecting an alternate actuator: •...
  • Page 60 VALVES FOR ACTUATORS (UMA / MBA) • If the Nexus Valve anchors do not fit your actuator, then an alternative anchoring device will need to be fabricated. You may be able to use “off the shelf” screws and nuts. It is important that the anchor secure the actuator squarely on the bracket, does not “bend”...

  • Page 61: Ultra Bk™ Bypass Kits

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRA BK™ BYPASS KITS Ultra BK™ Bypass Kits General The UltraBK™ bypass and flush kit is a universal product that can be used to provide the best terminal component protection during system flushing.
  • Page 62 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRA BK™ BYPASS KITS Operation Flushing Standard Operation 1. Close the supply side valve .

  • Page 63: Ultrat

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAT™ UltraT™ General The UltraT™ is a universal tee fitting that can be used for a multitude of applications. It is available with either 1 fixed end and 2 union ends or 2 fixed ends and 1 union end.

  • Page 64: Standard Ball Valve

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com STANDARD BALL VALVE Standard Ball Valve General SBV ball valve may be installed anywhere a general isolation valve is required.

  • Page 65: Nxu / Nxs / Nxh

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com NXU / NXS / NXH NXU / NXS / NXH General The UltraNX™ is a family of unique ball valves with a variety of connection types. A memory stop is also provided on all NX series valves.

  • Page 66: Ultraflex

    UltraFlex™ General Nexus UltraFlex™ hoses are specifically designed for trouble free long term use when properly installed in hydronic applications. UltraFlex™ hoses and associated pipe fittings are fabricated to meet demands of most normal temperatures, pressures, and fluids associated with most hydronic applications. Maximum pressure and temperature limits are stamped on one ferrule of each hose for easy identification.
  • Page 67 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAFLEX™ • Never install the hose in tension. The hose is made to hold internal pressure, not to act as a means of support.
  • Page 68 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAFLEX™ UltraFlex Allowing A Bend Length C (max) Size Min. Bend (in) (in)
  • Page 69 ULTRAFLEX™ • The gaskets provided with Nexus UltraFlex™ hoses are made of EPDM material. This gasket is softer than traditional fiber gaskets to allow ease of installation and does not require extreme tightening to obtain a seal. Care must be taken not to over tighten this connection. Over tightening can cause damage to the gasket and or sealing surfaces.
  • Page 70 Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com ULTRAFLEX™ Installation Notes • Do not compress the flexible connector to fit. •...

  • Page 71: Meter Kits - Mka

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com METER KITS – MKA Meter Kits – MKA The Meter Kit model MKA is a manually operated differential pressure metering kit for use with most automatic flow limiting valves.

  • Page 72: Meter Kits - Mkm

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com METER KITS – MKM Meter Kits – MKM The Meter Kit model(s) MKM are differntial pressure meter kits designed for use with most types of balancing valves.

  • Page 73: Manual Air Vents

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com MANUAL AIR VENTS Manual Air Vents MV-025 & MV-025L • MV’s feature a blowout-proof actuating stem within a sturdy housing.

  • Page 74: Handle Extension Kits

    HANDLE EXTENSION KITS Handle Extension Kits Nexus Valve offers extension kits to extend handles above insulation. Extension kits are normally assembled to the valve at the factory. If field assembly is required, assemble as seen in image below. Not all valve handles include the memory stop feature.

  • Page 75: Extension Pte / Pteb

    PT. Note: The PTE is not intended to contain pressure. It is not necessary to remove the PTE to take pressure or temperature readings through the PT as Nexus Valve offers extended probe needles for this purpose.

  • Page 76: Union Adapter

    General Union adapters may be installed on a Nexus Valve brand valve or union with a ¾” or 1¼” union size to adapt to the next union size to allow use of a larger union end connection. Refer to the chart below for applications.

  • Page 77: Tool Requirements

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com TOOL REQUIREMENTS Tool Requirements Item Tooling Required For Installation PG-025 1/4” Hex Key (Allen Wrench) PG-050 3/8”...

  • Page 78: Replacement O-Rings

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com REPLACEMENT O-RINGS Replacement O-Rings OR-075 0R-125 OR-200 OR-200UX OR-250 Sizes represent actual O-Ring diameter...

  • Page 79: Replacement Gaskets

    UFHW-200 2.00" 1.75 2.25 0.13 *These gaskets intended only for use in ½”, ¾” or 1” female swivel ends of Nexus UltraFlex™ hoses which feature captive washer design. GASKETS for NAC/SAC INSTALLTIONS Nexus P/N Cartridge Size ID (in) OD (in)

  • Page 80: Notes

    Installation - Operation - Maintenance Nexus Valve, Inc. Effective Date: February 13, 2019 9982 E. 121 Street Fishers, IN 46037 (888) 900-0947 (800) 900-8654 Fax info@nexusvalve.com www.nexusvalve.com NOTES Notes...

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