KF Sight Glasses

KF sight glasses designed for vacuum hygienic applications. The glass is fused to the metal conforming to DIN 7079 where the glass is Borosilicate per DIN 7080. These sights are sealed to the process vessel with an elastomer gasket. Use standard KF clamps to mount the sight windows to the process vessel. For hygienic applications use Tri Sanitary Clamps. KF sight glasses are manufactured to high tolerances with electropolished metal surfaces for improved cleanliness.

Metaglas, Herberts Industrieglas GmbH & Co. KG

KF Sight Glasses for MetaClamp(R), Borosilicate Fused to Duplex Steel Housing

KF sight glass for high vacuum and hygienic applications. Simple to install with no risk of breakage, this is a single-piece part ideal for use on food processing equipment (A3-Standard). Reliable against total failure - possibility of sudden unexpected rupture is totally excluded. This sight glass has a trade name MetaClamp(R) designed to be sealed to the process vessel with an elastomer gasket using a Tri Sanitary clamp. Standard KF clamps will also work but with less precision in clamping and without compliance for hygienic applications. This KF sight glass is manufactured to high tolerances and comes standard with surface finish 10 Ra microinches, with optional electropolish for improved cleanliness. Borosilicate glass DIN 7080 is fused to metal conforming to DIN 7079. Housing is made from Duplex Stainless Steel 2205 (1.4462), with material certificate traceable to the metal manufacturer. Manufactured and tested in conformance with A.D. Standard Series H.P. & A.D. standard WO/TRD 100. The sight glass has an uninterrupted surface from glass to metal, with no crevices trapping bacteria. No epoxies, no internal seals, just pure borosilicate glass-to-metal fusion. Supplied with Certificate of Conformity to EN 10204-3.1B or 3.1A.

KF Size	Aperture Dia.	Flange OD	Max Operating Pressure	Housing Material	Window Material	Max Operating Temp.	Mfg P/N	Encole P/N	Price
1/2, 3/4	10 mm	25 mm	230 psi	Duplex 2205	Borosilicate	232 C	METACLAMP-.50S	773E1101	$ 269.00 each
1, 1-1/2	25 mm	51 mm	230 psi	Duplex 2205	Borosilicate	232 C	METACLAMP-1S	773E1102	$ 269.00 each
2	30 mm	64 mm	230 psi	Duplex 2205	Borosilicate	232 C	METACLAMP-2S	773E1103	$ 284.00 each
2-1/2	35 mm	78 mm	230 psi	Duplex 2205	Borosilicate	232 C	METACLAMP-2.5S	773E1104	$ 340.00 each
3	40 mm	91 mm	150 psi	Duplex 2205	Borosilicate	232 C	METACLAMP-3S	773E1105	$ 376.00 each
3-1/2	50 mm	106 mm	150 psi	Duplex 2205	Borosilicate	232 C	METACLAMP-3.5S	773E1106	$ 482.00 each
4	55 mm	119 mm	150 psi	Duplex 2205	Borosilicate	232 C	METACLAMP-4S	773E1107	$ 540.00 each
6	75 mm	167 mm	85 psi	Duplex 2205	Borosilicate	232 C	METACLAMP-6S	773E1108	$ 1093.00 each
8	100 mm	218 mm	85 psi	Duplex 2205	Borosilicate	232 C	METACLAMP-8S	773E1109	$ 1420.00 each
10	120 mm	268 mm	85 psi	Duplex 2205	Borosilicate	232 C	METACLAMP-10S	773E11010	$ 1966.00 each
12	140 mm	319 mm	85 psi	Duplex 2205	Borosilicate	232 C	METACLAMP-12S	773E11011	$ 2933.00 each

Metaglas, Herberts Industrieglas GmbH & Co. KG

KF Sight Glasses for MetaClamp(R), Borosilicate Fused to Hastelloy C-22 Housing

KF sight glass for high vacuum and hygienic applications. Simple to install with no risk of breakage, this is a single-piece part ideal for use on food processing equipment (A3-Standard). Reliable against total failure - possibility of sudden unexpected rupture is totally excluded. This sight glass has a trade name MetaClamp(R) designed to be sealed to the process vessel with an elastomer gasket using a Tri Sanitary clamp. Standard KF clamps will also work but with less precision in clamping and without compliance for hygienic applications. This KF sight glass is manufactured to high tolerances and comes standard with surface finish 10 Ra microinches, with optional electropolish for improved cleanliness. Borosilicate glass DIN 7080 is fused to metal conforming to DIN 7079. Housing is made from Hastelloy C-22 (UNS N06022), with material certificate traceable to the metal manufacturer. Manufactured and tested in conformance with A.D. Standard Series H.P. & A.D. standard WO/TRD 100. The sight glass has an uninterrupted surface from glass to metal, with no crevices trapping bacteria. No epoxies, no internal seals, just pure borosilicate glass-to-metal fusion. Supplied with Certificate of Conformity to EN 10204-3.1B or 3.1A.

KF Size	Aperture Dia.	Flange OD	Max Operating Pressure	Housing Material	Window Material	Max Operating Temp.	Mfg P/N	Encole P/N	Price
1, 1-1/2	25 mm	51 mm	230 psi	Hastelloy C-22	Borosilicate	232 C	METACLAMP-1HC22	1128E801	$ 391.00 each
2	30 mm	64 mm	230 psi	Hastelloy C-22	Borosilicate	232 C	METACLAMP-2HC22	1128E802	$ 426.00 each
2-1/2	35 mm	78 mm	230 psi	Hastelloy C-22	Borosilicate	232 C	METACLAMP-2.5HC22	1128E803	$ 576.00 each
3	40 mm	91 mm	150 psi	Hastelloy C-22	Borosilicate	232 C	METACLAMP-3HC22	1128E804	$ 647.00 each
3-1/2	50 mm	106 mm	150 psi	Hastelloy C-22	Borosilicate	232 C	METACLAMP-3.5HC22	1128E805	$ 973.00 each
4	55 mm	119 mm	150 psi	Hastelloy C-22	Borosilicate	232 C	METACLAMP-4HC22	1128E806	$ 1172.00 each
6	75 mm	167 mm	90 psi	Hastelloy C-22	Borosilicate	232 C	METACLAMP-6HC22	1128E807	$ 2038.00 each
8	100 mm	218 mm	90 psi	Hastelloy C-22	Borosilicate	232 C	METACLAMP-8HC22	1128E808	$ 2635.00 each