GN 743.8 Fluid Sight Glasses Brass, with ESG Safety Glass, with Conical BSPT or NPT Thread

Photo

GN 743.8 Brass Fluid Sight Glasses, with ESG Safety Glass, with Conical BSPT or NPT Thread Type: A - With reflector
Type: A - With reflector
GN 743.8 Brass Fluid Sight Glasses, with ESG Safety Glass, with Conical BSPT or NPT Thread Type: A - With reflector GN 743.8 Brass Fluid Sight Glasses, with ESG Safety Glass, with Conical BSPT or NPT Thread Type: B - Without reflector

Product description

Information

The conical thread of GN 743.8 fluid sight glasses makes a metallic seal possible. When tightened, the conical external thread R wedges itself within the corresponding internal thread Rp.

At the reference level “a”, the external thread has the same thread diameter as the internal thread, so that it can be fastened in by hand up to “a”. The tightening with a tool increases the screw-in length and seals the screw connection. In addition, a sealant (fibrous or teflon tape) is usually used. The ”R” thread is “roughened”, so that the sealant does not shift when screwing in.

These fluid sight glasses can also be used on pressurized tanks. Tests regarding maximum pressure are available.

Specification

Body
Brass CuZn40Pb2


Reflector
Plastic
Technopolymer (Polysulfon)


Sight glass
ESG safety glass
Temperature resistant up to 356 °F (180 °C)


O-ring
Rubber FPM (Viton®)
Identification by non-black coloring of the seal


RoHS

On request

EPDM O-rings

Technical drawing

3D
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GN 743.8 Brass Fluid Sight Glasses, with ESG Safety Glass, with Conical BSPT or NPT Thread sketch

Part Options / Table

Type

AWith reflector
BWithout reflector
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Metric

Dimensions in: Inch (change to Metric)
d1d2
External thread
Conical
a
Reference level
d3
at "a"
d4
Internal thread
Cylindrical


Conical
el1l2l3
Usable thread length
p
Thread
pitch
s
0.43R 3/80.250.66Rp 3/8-0.870.510.240.400.050.75
0.433/8 NPT0.240.67-3/8 NPT0.870.590.24-0.060.75
0.55R 1/20.320.83Rp 1/2-1.080.670.280.520.070.94
0.551/2 NPT0.320.83-1/2 NPT1.080.630.28-0.070.94
0.71R 3/40.371.04Rp 3/4-1.220.710.310.570.071.06
0.713/4 NPT0.341.05-3/4 NPT1.300.710.31-0.071.13
0.94R 10.411.31Rp 1-1.590.830.350.660.091.42
0.941 NPT0.401.33-1 NPT1.630.870.31-0.091.37
1.26R 1 1/40.501.65Rp 1 1/4-2.090.940.350.750.091.81
1.261 1/4 NPT0.421.66-1 1/4 NPT2.030.910.35-0.091.75

Build & Price

3D Product Configurator
Diameter d1
Thread d2
Type


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Total US Dollars (net)
$13.45
In Stock: 2
In Stock
Please note our quantity discounts (US Dollars).
MinMaxPrice
149$13.45
5099$12.33
100249$11.21
≥ 250$10.08
Prop 65: Not compliant
WARNING:
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
RoHS: Compliant
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)).
Weight: 0.041 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
All Prices are in US Dollars. Taxes Not Included.

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