Technical datasheet
GN 743.7Oil level sight glasses
Oil level sight glasses
Brass / natural glass, resistant up to 100 °C
GN 743.7
|
Catalogue
|
d1
|
d2
|
a
|
d3
|
d4
|
e
|
l1
|
l2
|
l3
|
s
|
p
|
|
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
11
|
R 3/8
|
6.4
|
16.7
|
Rp 3/8
|
22
|
13
|
6
|
10.1
|
19
|
1.34
|
19
| ||
|
14
|
R 1/2
|
8.2
|
21
|
Rp 1/2
|
27.5
|
17
|
7
|
13.2
|
24
|
1.81
|
40
| ||
|
18
|
R 3/4
|
9.5
|
26.4
|
Rp 3/4
|
31
|
18
|
8
|
14.5
|
27
|
1.81
|
50
| ||
|
24
|
R 1
|
10.4
|
33.2
|
Rp 1
|
40.5
|
21
|
9
|
16.8
|
36
|
2.3
|
98
| ||
|
32
|
R 1 1/4
|
12.7
|
42
|
Rp 1 1/4
|
53
|
24
|
9
|
19.1
|
46
|
2.3
|
149
| ||
|
11
|
R 3/8
|
6.4
|
16.7
|
Rp 3/8
|
22
|
13
|
6
|
10.1
|
19
|
1.34
|
20
| ||
|
14
|
R 1/2
|
8.2
|
21
|
Rp 1/2
|
27.5
|
17
|
7
|
13.2
|
24
|
1.81
|
33
| ||
|
18
|
R 3/4
|
9.5
|
26.4
|
Rp 3/4
|
31
|
18
|
8
|
14.5
|
27
|
1.81
|
49
| ||
|
24
|
R 1
|
10.4
|
33.2
|
Rp 1
|
40.5
|
21
|
9
|
16.8
|
36
|
2.3
|
92
| ||
|
32
|
R 1 1/4
|
12.7
|
42
|
Rp 1 1/4
|
53
|
24
|
9
|
19.1
|
46
|
2.3
|
155
| ||
|
11
|
3/8 NPT
|
6.1
|
17.1
|
3/8 NPT
|
22
|
15
|
6
|
-
|
19.1
|
1.41
|
19
| ||
|
14
|
1/2 NPT
|
8.1
|
21.2
|
1/2 NPT
|
27.5
|
16
|
7
|
-
|
23.8
|
1.81
|
31
| ||
|
18
|
3/4 NPT
|
8.6
|
26.6
|
3/4 NPT
|
33
|
18
|
8
|
-
|
28.6
|
1.81
|
55
| ||
|
24
|
1 NPT
|
10.2
|
33.7
|
1 NPT
|
41.5
|
22
|
8
|
-
|
34.9
|
2.21
|
73
| ||
|
32
|
1 1/4 NPT
|
10.7
|
42.2
|
1 1/4 NPT
|
51.5
|
23
|
9
|
-
|
44.5
|
2.21
|
135
| ||
|
11
|
3/8 NPT
|
6.1
|
17.1
|
3/8 NPT
|
22
|
15
|
6
|
-
|
19.1
|
1.41
|
5
| ||
|
14
|
1/2 NPT
|
8.1
|
21.2
|
1/2 NPT
|
27.5
|
16
|
7
|
-
|
23.8
|
1.81
|
34
| ||
|
18
|
3/4 NPT
|
8.6
|
26.6
|
3/4 NPT
|
33
|
18
|
8
|
-
|
28.6
|
1.81
|
60
| ||
|
24
|
1 NPT
|
10.2
|
33.7
|
1 NPT
|
41.5
|
22
|
8
|
-
|
34.9
|
2.21
|
70
| ||
|
32
|
1 1/4 NPT
|
10.7
|
42.2
|
1 1/4 NPT
|
51.5
|
23
|
9
|
-
|
44.5
|
2.21
|
133
|
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
Related products
GH.
Locking rings
Nickel-plated brass
GN 743
Oil level sight glasses
Aluminum / natural glass, resistant up to 100 °C
GN 743.2
Oil level sight glasses
Brass / natural glass, resistant up to 100 °C
GN 743.8
Oil level sight glasses
Brass / natural glass, resistant up to 180 °C
GN 7490
Welding Sockets
Steel / Stainless Steel, with and without Collar
HFTX.
Oil level sight glass
Technopolymer
HGFT-EX
Oil level sight glasses
Technopolymer
HGFT.
Oil level sight glasses
Technopolymer up to 100°C