Fluid Sight Glasses EN 541

Product description

Information

Fluid sight glasses EN 541 made of polyamide plastic have a high mechanical strength. Therefore, they can be produced with thinner walls and with a large viewing window.

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

Assembly note:
For wall thicknesses below 0.16 in (4 mm), use thin hex nuts GN 7430.

Specification

Body
Plastic
Crystal clear Polyamide PA-T

Aging resistant
High mechanical strength,
but not alcohol resistant
Temperature resistant 212 °F (100 °C)
Solvent resistant,
but not alcohol resistant

Reflector
Aluminum
Anodized finish, natural color

Seal
Rubber NBR (Perbunan^®)

RoHS

Accessory

Thin Hex Nuts GN 7430 (Brass)
Thin Hex Nuts GN 7430 (Stainless Steel)

Build & Price

Part Number A - With reflector	Part Number B - Without reflector	d₁	d₂ Fine thread	Pipe thread	d₃	l₁	l₂	s	Recommended tightening torque in Nm


541-13-3/4X16-A	541-13-3/4X16-B	0.51	3/4 x 16	-	1.02	0.59	0.31	0.87	3
541-19-11/16X12-A	541-19-11/16X12-B	0.75	1 1/16 x 12	-	1.38	0.59	0.39	1.18	5
541-11-M16X1.5-A	541-11-M16X1.5-B	0.43	M 16 x 1.5	-	0.87	0.31	0.28	0.75	2 ... 3
541-14-M20X1.5-A	541-14-M20X1.5-B	0.55	M 20 x 1.5	-	1.02	0.37	0.31	0.87	8 ... 10
541-18-M25X1.5-A	541-18-M25X1.5-B	0.71	M 25 x 1.5	-	1.24	0.31	0.35	1.06	8 ... 10
541-18-M26X1.5-A	541-18-M26X1.5-B	0.71	M 26 x 1.5	-	1.24	0.51	0.35	1.06	8 ... 10
541-20-M27X1.5-A	541-20-M27X1.5-B	0.79	M 27 x 1.5	-	1.24	0.35	0.35	1.06	8 ... 10
541-22-M30X1.5-A	541-22-M30X1.5-B	0.87	M 30 x 1.5	-	1.38	0.35	0.39	1.18	8 ... 10
541-25-M35X1.5-A	541-25-M35X1.5-B	0.98	M 35 x 1.5	-	1.57	0.43	0.39	1.34	8 ... 10
541-30-M40X1.5-A	541-30-M40X1.5-B	1.18	M 40 x 1.5	-	1.85	0.45	0.51	1.59	8 ... 10
541-9-G1/4-A	541-9-G1/4-B	0.35	-	G 1/4	0.71	0.39	0.24	0.59	2 ... 3
541-11-G3/8-A	541-11-G3/8-B	0.43	-	G 3/8	0.87	0.30	0.28	0.75	3 ... 5
541-14-G1/2-A	541-14-G1/2-B	0.55	-	G 1/2	1.02	0.41	0.31	0.87	4 ... 6
541-20-G3/4-A	541-20-G3/4-B	0.79	-	G 3/4	1.24	0.41	0.35	1.06	6 ... 8
541-25-G1-A	541-25-G1-B	0.98	-	G 1	1.57	0.43	0.39	1.34	8 ... 10
541-30-G11/4-A	541-30-G11/4-B	1.18	-	G 1 1/4	1.85	0.45	0.51	1.59	8 ... 10

d₁	d₂ Fine thread	Pipe thread	d₃	l₁	l₂	s	Recommended tightening torque in Nm

0.51	3/4 x 16	-	1.02	0.59	0.31	0.87	3
0.75	1 1/16 x 12	-	1.38	0.59	0.39	1.18	5

d₁	d₂ Fine thread	Pipe thread	d₃	l₁	l₂	s	Recommended tightening torque in Nm

0.43	M 16 x 1.5	-	0.87	0.31	0.28	0.75	2 ... 3
0.55	M 20 x 1.5	-	1.02	0.37	0.31	0.87	8 ... 10
0.71	M 25 x 1.5	-	1.24	0.31	0.35	1.06	8 ... 10
0.71	M 26 x 1.5	-	1.24	0.51	0.35	1.06	8 ... 10
0.79	M 27 x 1.5	-	1.24	0.35	0.35	1.06	8 ... 10
0.87	M 30 x 1.5	-	1.38	0.35	0.39	1.18	8 ... 10
0.98	M 35 x 1.5	-	1.57	0.43	0.39	1.34	8 ... 10
1.18	M 40 x 1.5	-	1.85	0.45	0.51	1.59	8 ... 10
-	-	-	-	-	-	-	-
0.35	-	G 1/4	0.71	0.39	0.24	0.59	2 ... 3
0.43	-	G 3/8	0.87	0.30	0.28	0.75	3 ... 5
0.55	-	G 1/2	1.02	0.41	0.31	0.87	4 ... 6
0.79	-	G 3/4	1.24	0.41	0.35	1.06	6 ... 8
0.98	-	G 1	1.57	0.43	0.39	1.34	8 ... 10
1.18	-	G 1 1/4	1.85	0.45	0.51	1.59	8 ... 10

3D Product Configurator

Selected Part

Part Number

Total US Dollars (net)

$2.74

In Stock: 86

In Stock

Quantity

Please note our quantity discounts (US Dollars).

Min	Max	Price
1	6	$2.74
7	99	$2.64
100	249	$2.50
≥ 250		$2.25

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: 0.006 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.