Two Hole Round Ceramic Tube Insulators

Catalog A58

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Description

The following two hole alumina ceramic tube type insulators are available in six inch lengths. The tubes are constructed of a pure 99% alumina ceramic that has superior gas and vacuum tightness and excellent insulating properties even at elevated temperatures. They are recommended for use in mass spectrometers and other vacuum systems as feed through lines, thermocouple insulators, and in other applications requiring electrical and thermal insulators. Other types are also available - one hole, four hole insulator tubes, and solid rods.

The following ceramic tubes are supplied in 6 inch lengths. Unless otherwise noted they can also be supplied in longer lengths (up to 24 inches long). We can also custom cut shorter lengths to your specifications. Contact Us with your specific requirements.

Other sizes available on request

Tolerances on all diameters are ±0.005"

R25 is available in 6 inch lengths only.

Prices shown are for 6 inches.

Part No.	OD (in)	ID (in)	Stock/ Lead Time	Price EA	Order
Two Hole Ceramic Tube Insulator
R1215	0.031	0.005	DISCONTINUED	---	---
R1216	0.047	0.010	9	CALL	Qty
R26	0.062	0.016	48 hours^†Standard lead time for ceramics is 48 hours.	$20.50	Qty
R29	0.094	0.025	9	$23.00	Qty
R27	0.109	0.031	21	$15.00	Qty
R25	0.125	0.020	25	$48.13	Qty
R24	0.125	0.031	46	$18.50	Qty
R23	0.125	0.040	9	$18.50	Qty
R1221	0.156	0.040	16	CALL	Qty
R28	0.156	0.052	9	CALL	Qty
R1222	0.188	0.040	19	CALL	Qty
R22	0.188	0.062	13	CALL	Qty
R21	0.25	0.062	DISCONTINUED	---	---
R20	0.25	0.078	48 hours^†Standard lead time for ceramics is 48 hours.	$12.00	Qty
* Call for availability. † Standard lead time for ceramics is 48 hours.
Ordering information. International (non-US) prices available through your local dealer.