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WFDBV-WF/ LU SERIES

WFDBV-WF/ LU SERIES
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WFDBV-WF/ LU SERIES

Product catalog summary
Overview: The Dorot DBV-WF/LU series valves are designed for international compatibility, fitting most global flange standards. They are suitable for various applications including pumping stations, irrigation, municipal water lines, and industrial water pipes. The modular design allows for easy installation and maintenance without the need for additional brackets or adapters.
Product Advantages:
  • Wafer Lug style valve for installation between two flanges in any position.
  • Sealed stem and gear for longer lifespan.
  • Low torque requirement due to low friction stem bushing.
  • Extra long neck for easy activation in hard-to-reach locations.
  • Square stem for easy re-assembly of gear box or extension shaft.
Design Features: The DBV-WF is a safer version with optional flange locating holes, while the LU series is designed for dead-end service. All valves are tested to 110% of full pressure rating before shipment.
Specifications:
  • Epoxy coated cast iron, wafer or lug bodies.
  • Mechanically-retained stem with no exposure to line media.
  • Bi-directional flow, tested to 110% of pressure rating.
  • Pressure ratings: 2”-12” valves at 230 PSI/PN16, 14”-20” valves at 150 PSI/PN10.
  • No field adjustment necessary for optimal performance.
Installation:
  1. Position the disc partially open.
  2. Place the valve body between pipe flanges and install bolts without gaskets.
  3. Open the disc fully, align with pipes, and tighten bolts.
  4. Rotate the disc to "closed" position.
Maintenance and Repair: Minimal maintenance is required due to high-performance features. Components are field replaceable without adjustment. Ensure the system is depressurized before maintenance.
Material Selection:
  • Body: Ductile iron ASTM A536 or Cast Iron ASTM A126 Class B.
  • Seal: Buna-N or EPDM.
  • Stem: 410SS or 316SS.
  • Disc: Aluminum Bronze or Coated Ductile Iron.
Operating Temperature Range:
  • EPDM: -40ºF to +250ºF (-40ºC to +121ºC).
  • Buna-N: 0ºF to +212ºF (-18ºC to +100ºC).
Valve Actuators: Options include Gear Box, Hand Lever, and Extension Rods of various lengths.
Company Background: Founded in 1946, Dorot is a leader in control valve technology, offering innovative solutions for water control systems. The company emphasizes high-quality materials and customer service, with distribution in over 70 countries.
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Catalog excerpts

WFDBV-WF/ LU SERIES-2

A major design advantage of Dorot valve product linesis international compatibility. The same valve is compatiblewith most world flange standards - ANSI Class 125/150,BS 10 Tables D & E, BS4504 NP 10/16, DIN ND10/16, AS2129 and JIS 10. In addition, the valves are designed tocomply with ISO 5752 face-to-face and ISO 5211 actuatormounting flanges.Therefore, one valve design can be used in many differentworld markets. Due to a modular concept of design, allDorot handles, manual gear operators mount directly toDorot valves. No brackets or adapters are required. Dorotinterchangeability and compatibility...

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WFDBV-WF/ LU SERIES-3

Dimensions of Series DBV-WF/LU ValvesDBCØAMØADBCØEødØGØFnxØHLABCDEFGnxØHdLMinchmminchmminchmminchmminchmminchmminchmminchmminchmminchmminchmminchmm250252.65.6421.3323.1803.8962.8703.5904x0.4100.512.71.7430.5112.5652.564.46.11551.3323.5894.61162.8703.5904x0.4100.512.71.8460.511380378.9.31611.3323.7955.21322.8703.5904x0.4100.512.71.8460.51141004.1104.17.11801.3324.511461522.8703.5904x0.4100.615.92520.51151254.923.47.61931.33251277.21822.8703.5904x0.4100.819.12.2560.61461506.11568.12051.3325.51398.12052.87035904x0.4100.819.12.2560.6148208202.99.82501.6406.917510.226041024.91254x0.5120.922.22.4600.717102509.9250.911.12821.640820312.431541024.91254x0.5121.128.62.680.9221230011.9301.912.83261.6409.524214.637141024.91254x0.5121.331.83.1780.9221435013.133414.13581.64010.526716.642141024.9124x0.5121.331.83.1780.9221640015.4390.0153802.15211.630118.64715.51406.91754x0.7181.538.1[4/3.5]102/880.9221845017.4441164222.1521538120.75265.51406.91754x0.7181.641.3[4.5/4.2]114/1071.1272050019.4492.318.94792.56415.238722.65755.51406.91754x0.7181.844.551271.1272460023.459322.15622.87018457276866.51658.3204x0.923250.86.11541.436Valve...

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WFDBV-WF/ LU SERIES-4

Selection DataRECOMMENDED SPECIFICATIONS FORDOROT SERIES DBV- WF/ LU SHALL BE:•Epoxy coated cast iron, wafer or lug bodies.•Series LU: Lug-type with flange-locatingholes to ANSI 125/150, BS 10 Tables D & E,BS4504 PN 10/16, DIN ND10/16, AS 2129and JIS 10 standards.•Mechanically-retained Stem in body neck.No part of stem or body is exposed to line media.•For weld-neck and slip-on flanges-seattotally encapsulates the body, no flangegaskets are required.•Spherically machined, hand polished andmaximum sealing capability.•Non-corrosive bearings.•Bi-directional flow, tested to 110% ofpressure rating.•Bi-directional...

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WFDBV-WF/ LU SERIES-5

89123456Material selectionBODY• Ductile iron ASTM A536 (standard)• Cast Iron ASTM A126 Class BSEAL• Buna-N• EPDM (standard)STEM• 410SS ASTM A582 Type 410 (standard)• 316SS ASTM A276 Type 316DISC• Aluminum Bronze ASTM B148-954• Coated Ductile Iron ASTM A536 (standard)• Ductile Iron, Nylon 11 Coated, ASTM A536• 316 SS ASTM A351 CF8M2ComponentsNo.QtyDescription11Thrust Washer21Retaining Ring32Stem Retainer43Bearings51O-Ring61Disc71Stem81Seal91Body13Operating Temperature Range of SealsTypeMinimumMaximumEPDM-40ºF(-40ºC)+250ºF(121ºC)Buna-N0ºF(-18ºC)+212ºF(100ºC)Valve Actuators1.Gear Box2.Hand Lever3.Extension...

 Open the catalog to page 5
WFDBV-WF/ LU SERIES-6

DOROT AUTOMATIC CONTROL VALVESFounded in 1946, DOROT is a leading developer, manufacturer, and marketerof a wide range of superior quality control valves. DOROT's experiencedResearch & Development Dept. has a long tradition of generating innovativesolutions for the application of water control systems. These include, waterworksdistribution networks, sewage and effluent disposal, fire protection, mining,and irrigation systems.DOROT’s commitment to excellence begins with using the highest qualitymaterials. The company's engineering experts are constantly working to providecustomers with a broad...

 Open the catalog to page 6

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.