GN 7440 Sight Glasses Stainless Steel AISI 316 L, Metal-Fused

Sight Glasses GN 7440: Stainless Steel AISI 316 L, Metal-Fused
Identification no.: 2 - Seal FKM
Stainless-Steel-Quality-Class-4

Product Family Stainless Steel Quality Class 4

The Ganter product range includes a large number of standard parts made of high-quality, non-rusting stainless steels. Thanks to their outstanding material properties, these are used in a wide array of industries. Their corrosion and rust resistance in particular contributes to the value stability and longevity of machines and equipment.

For easier differentiation, the stainless steels used by Ganter are divided into stainless steel quality classes:

Edelstahl Güteklasse 1 Stainless Steel Quality Class 1

Edelstahl Güteklasse 2 Stainless Steel Quality Class 2

Edelstahl Güteklasse 4 Stainless Steel Quality Class 4

Show detailed information on the stainless steel quality classes

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Product description

Sight glasses GN 7440 are equipped with a sight glass that is metal-fused to the body by a thermal process. As a result the liquid glass adapts precisely to the contour of the body. During cooling, the different coefficients of linear expansion of the two joining partners generate strong mechanical initial stress between the glass and metal.

This initial stress makes the sight glasses 100% leakproof and particularly resistant to dynamic pressures and high temperatures when used with liquid and gaseous media. Moreover, the site glass offers a high level of safety, as potential damage is indicated in advance by small cracks without breakage of the glass. The seal is embedded in a radial recess, and thus cannot be lost or squeezed out during tightening.

The recommended operating pressures are non-binding values and rule out any liability. The user must determine from case to case whether a product is suitable for the intended use. Environmental factors can influence the specified values.

Specification

  • Body
    Stainless steel AISI 316 L

  • Contrast screen
    Grooves melted into sight glass

  • Sight glass float-glass
    • Metal-fused
    • Shrink-fit

  • Seals
    • Rubber FKM at identification no. 2
      Temperature resistant up to 180 °C
      (without pressure load)
    • Copper (identification no. 3)
      Temperature resistant up to 300 °C
      (without pressure load)

RoHS

On request

Seal of NBR or EPDM

Hide technical drawing
GN 7440 Sight Glasses, Stainless Steel AISI 316 L, Metal-Fused sketch

Article options / Table

Type

AWith reflector grooves

Identification no.

2Seal FKM
3Seal copper
Show / Hide columns
d1d2d3l1l2smax. operating pressure
(safety factor 5)
at -20 °C to 120 °C
in bar
11G 3/8M 16 x 1,52287,52080
14G 1/2M 20 x 1,5268,57,52380
18G 3/4M 26 x 1,532983080
24G 1M 33 x 1,540118,53680
32G 1 1/4M 42 x 1,5501294640

Build & Price

Window glass d1
Inch thread d2
Fine thread d2
Type

Identification no.


Window glass d1
Inch thread d2
Fine thread d2
Type

Identification no.


Assembly Instruction

For mounting on walls of less than 4 mm thickness please use a mounting nuts GN 7430.

Selected Part (How to order)

Total (net)
22,42
plus VAT 4,26 €
gross 26,68 €
In stock
Weight: 0,022 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone +49 7723 6507 - 0
RoHS: Yes
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances).
Customs tariff number
90261089
Please note our order discounts.
With a total value (net) per order:
from 175,00 € -> 10 % discount
from 275,00 € -> 20 % discount
from 375,00 € -> 30 % discount

Surcharge for small volume purchases:
-> 15,00 Euro
for value of goods less than 25,00 €
-> 10,00 Euro
for value of goods from 25,00 to 49,99 €
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To the customised elements | To the contact persons

GN 7440-11-G3/8-A-2GN 7440-11-G3/8-A-3GN 7440-11-M16x1,5-A-2GN 7440-11-M16x1,5-A-3GN 7440-14-G1/2-A-2GN 7440-14-G1/2-A-3GN 7440-14-M20x1,5-A-2GN 7440-14-M20x1,5-A-3GN 7440-18-G3/4-A-2GN 7440-18-G3/4-A-3GN 7440-18-M26x1,5-A-2GN 7440-18-M26x1,5-A-3GN 7440-24-G1-A-2GN 7440-24-G1-A-3GN 7440-24-M33x1,5-A-2GN 7440-24-M33x1,5-A-3GN 7440-32-G11/4-A-2GN 7440-32-G11/4-A-3GN 7440-32-M42x1,5-A-2GN 7440-32-M42x1,5-A-3

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