EN 543.2 Fluid Sight Glasses Plastic

Original design
code: HGFT.

Type: A - With reflector
Color: RT - Red

Product description

The sight glass of fluid sight glasses EN 543.2 is molded in the body during the injection process and is therefore absolutely leak tight.

The seal is embedded in a radial recess, and thus cannot be squeezed out during tightening.

The red version indicates a "control point".

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

Body
Plastic
Technopolymer (Polyamide PA)

Sight glass
Plastic
Crystal clear Polyamide PA-T

Seal
Rubber NBR (Perbunan^®)

Reflector
Aluminum
Anodized finish, natural color

RoHS

Hide technical drawing

A	With reflector
B	Without reflector

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

543.2-11-G3/8-A-SW	0.43	G 3/8	0.94	0.31	0.28	0.87	4 ... 8
543.2-11-G3/8-B-SW	0.43	G 3/8	0.94	0.31	0.28	0.87	4 ... 8
543.2-11-G3/8-A-RT	0.43	G 3/8	0.94	0.31	0.28	0.87	4 ... 8
543.2-11-G3/8-B-RT	0.43	G 3/8	0.94	0.31	0.28	0.87	4 ... 8
543.2-15-G1/2-A-SW	0.59	G 1/2	1.10	0.39	0.33	0.94	6 ... 8
543.2-15-G1/2-B-SW	0.59	G 1/2	1.10	0.39	0.33	0.94	6 ... 8
543.2-15-G1/2-A-RT	0.59	G 1/2	1.10	0.39	0.33	0.94	6 ... 8
543.2-15-G1/2-B-RT	0.59	G 1/2	1.10	0.39	0.33	0.94	6 ... 8
543.2-18-G3/4-A-SW	0.71	G 3/4	1.38	0.39	0.33	1.26	8 ... 10
543.2-18-G3/4-B-SW	0.71	G 3/4	1.38	0.39	0.33	1.26	8 ... 10
543.2-18-G3/4-A-RT	0.71	G 3/4	1.38	0.39	0.33	1.26	8 ... 10
543.2-18-G3/4-B-RT	0.71	G 3/4	1.38	0.39	0.33	1.26	8 ... 10
543.2-23-G1-A-SW	0.91	G 1	1.69	0.43	0.37	1.50	10 ... 12
543.2-23-G1-B-SW	0.91	G 1	1.69	0.43	0.37	1.50	10 ... 12
543.2-23-G1-A-RT	0.91	G 1	1.69	0.43	0.37	1.50	10 ... 12
543.2-23-G1-B-RT	0.91	G 1	1.69	0.43	0.37	1.50	10 ... 12
543.2-30-G11/4-A-SW	1.18	G 1 1/4	1.97	0.43	0.35	1.81	12 ... 15
543.2-30-G11/4-B-SW	1.18	G 1 1/4	1.97	0.43	0.35	1.81	12 ... 15
543.2-30-G11/4-A-RT	1.18	G 1 1/4	1.97	0.43	0.35	1.81	12 ... 15
543.2-30-G11/4-B-RT	1.18	G 1 1/4	1.97	0.43	0.35	1.81	12 ... 15
543.2-40-G2-A-SW	1.57	G 2	2.68	0.47	0.43	2.36	12 ... 15
543.2-40-G2-B-SW	1.57	G 2	2.68	0.47	0.43	2.36	12 ... 15
543.2-40-G2-A-RT	1.57	G 2	2.68	0.47	0.43	2.36	12 ... 15
543.2-40-G2-B-RT	1.57	G 2	2.68	0.47	0.43	2.36	12 ... 15

Dimensions in: Inch (change to Metric)

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

0.59*	1/2 NPT	1.10	0.39	0.33	0.94	6 ... 8
0.71*	3/4 NPT	1.38	0.39	0.33	1.26	8 ... 10
0.91*	1 NPT	1.69	0.43	0.37	1.50	10 ... 12

* Only available in black with reflector

Dimensions in: Inch (change to Metric)

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

0.43	G 3/8	0.94	0.31	0.28	0.87	4 ... 8
0.59	G 1/2	1.10	0.39	0.33	0.94	6 ... 8
0.71	G 3/4	1.38	0.39	0.33	1.26	8 ... 10
0.91	G 1	1.69	0.43	0.37	1.50	10 ... 12
1.18	G 1 1/4	1.97	0.43	0.35	1.81	12 ... 15
1.57	G 2	2.68	0.47	0.43	2.36	12 ... 15