743.7-14-1/2NPT-A GN 743.7 Oil level sight glasses

743.7-14-1/2NPT-A

GN 743.7 Oil level sight glasses

Brass / natural glass, resistant up to 100 °C
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  • Icons/__logo__RoHS__.png

Eta: 1-2 weeks All sizes and variants of GN 743.7

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Technical data

Catalogue
GN 743.7-14-1/2NPT-A
d1
14
d2
1/2 NPT
a
8.1
d3
21.2
d4
1/2 NPT
e
27.5
l1
16
l2
7
s
23.8
p
1.81
31
743.7-14-1/2NPT-A drawing

Types

  • Type A: with contrast screen
  • Type B: without contrast screen

Body

Brass

CuZn40Pb2

Contrast screen

Technopolymer (Polysulfon)

  • temperature resistant up to 100 °C
  • Sight glass Float-glass
  • O-Ring rubber NBR (Perbunan®)

The conical thread of the oil level sight glasses GN 743.7 makes a metallic seal possible. When tightening the conical male thread R it blocks itself with the appropriate cylindrical female thread Rp.

With the datum plane a the R-male thread has the same thread diameter as the Rp-female thread, so that it can be screwed in by hand. The strong tightening by means of a tool increases the length of engagement and seals the screw connection. Additionally a sealant (hemp or teflon band) is usually used. The R-thread is „roughened“, so that the sealant does not shift when screwing in.

  • EPDM O-rings