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Scope of delivery

  • Blast nozzle in the selected size
  • Rubber gasket for nylon nozzle holders
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Product information

Boron carbide Venturi nozzle – maximum service life for aggressive abrasives

Boron carbide is extremely hard wearing and durable, with up to ten times the longevity of tungsten carbide – ideal for aggressive abrasives. As well as being heat and corrosion resistant, the aluminium jacket keeps the nozzle lightweight, and its shock absorbent rubber sleeve preserves the internal liner. Alongside the standard lengths, sizes #6, #7 and #8 are available as XL versions with a length of 350 mm. Supplied with a rubber gasket.

A larger orifice produces a greater blast coverage area but needs more air capacity from the compressor; a smaller orifice gives a narrower pattern and uses less air. As a general rule, replace the nozzle when the orifice has worn by one nozzle size – easy to check with the Elcometer 103 Blast Nozzle Gauge.

At a glance

  • Up to 10× service life: compared with tungsten carbide
  • Shock protected: rubber sleeve over the lightweight, heat and corrosion resistant aluminium jacket
  • XL version: #6, #7 and #8 with 350 mm length
  • 2" contractor thread: the industry standard at 4½ TPI – greatly reduces cross threading, easy to attach, safer at high pressure
  • With rubber gasket: for nylon nozzle holders; aluminium holders come with their own gasket

Sizes compared

No.OrificeLengthEntryThreadOrder number
#34.8 mm (3/16")135 mm32 mm (1¼")2" contractorMT28418-3C
#46.35 mm (1/4")140 mm32 mm (1¼")2" contractorMT28418-4C
#58 mm (5/16")145 mm32 mm (1¼")2" contractorMT28418-5C
#69.5 mm (3/8")170 mm32 mm (1¼")2" contractorMT28418-6C
#711 mm (7/16")190 mm32 mm (1¼")2" contractorMT28418-7C
#812.5 mm (1/2")220 mm32 mm (1¼")2" contractorMT28418-8C
#6 XL9.5 mm (3/8")350 mm32 mm (1¼")2" contractorMT28439-6XLC
#7 XL11 mm (7/16")350 mm32 mm (1¼")2" contractorMT28439-7XLC
#8 XL12.5 mm (1/2")350 mm32 mm (1¼")2" contractorMT28439-8XLC

Which bore lining is right?

  • Tungsten carbide (TC): relatively inexpensive and impact resistant – ideal where rough handling cannot be avoided and with mineral, glass or coal slag abrasives
  • Silicon carbide (SC): impact resistant and durable like tungsten carbide, but approximately one third of the weight – ideal for long blasting periods
  • Silicon nitride (SN): outstanding wear resistance and up to 50 % lighter than other nozzles of the same size – reduces operator fatigue
  • Boron carbide (BC): extremely hard wearing, up to ten times the longevity of tungsten carbide – ideal for aggressive abrasives
More information
  • Product number: 2152002
  • Manufacturer: Elcometer

Technical details

Manufacturer order numbersMT28418-3C, MT28418-4C, MT28418-5C, MT28418-6C, MT28418-7C, MT28418-8C, MT28439-6XLC, MT28439-7XLC, MT28439-8XLC
Bore liningBoron carbide (BC)
JacketAluminium with shock-absorbing rubber sleeve
Bore shapeVenturi (converging entry, diverging exit)
Thread2" (51 mm) contractor thread
Entry diameter32 mm (1¼")
Nozzle sizes#3, #4, #5, #6, #6 XL, #7 XL, #7, #8, #8 XL (4.8–12.5 mm)
Lengths135–350 mm
Supplied with rubber gasketyes

Further manufacturer information

Manufacturer: Elcometer Limited, Manchester (UK) – beschicht is an authorised Elcometer dealer.

Matching accessories: replacement rubber gaskets (MT29212-…), aluminium (ANH-…) and nylon (NNH-…) blast nozzle holders, Elcometer 103 Blast Nozzle Gauge.

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