Sight glasses gaskets

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Typically, the sight glasses are sold as sets with gaskets and mica shield. At a separate sale of gaskets you must pay attention to the proper fit of the gasket to the size of the glass. The table below shows the dimensions of the gasket according to the size of sight glass and operating pressure.

To increase the durability of the sight glass and protect it against the erosion effect of the boiler water or aggressive chemicals, the mica shield is installed. It is placed between the glass and the gasket on the medium side. Mica shield protects the glass from exposure to contact with aggressive environments. Mica shields are discussed here.

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Dimensions [mm]:

GLASS			GASKET
Diameter (D)	Thickness (S)	Pressure (bar)	Outer diameter (d1)	Inner diameter (d2)	Thickness (g)
30	15*	200	*******	*	*
31.75	12.7	175	**	**	**
34	17	200	*******	-	-
35	7*	25	*******	-	-
40	10	40	42	30	1.5
40	12*	50	42	30	1.5
45	10	40	47	32	1.5
45	12	50	47	32	1.5
50	10	25	52	35	1.5
50	12	40	52	35	1.5
55	10*	25	57	40	1.5
60	10	16	62	45	1.5
	12	25
	15	40
	20	95
63	8*	8	62	48	1.5
	10	16	65	48	2
	12	25
	15	40
65	10	12	67	50	2
65	15	40	67	50	2
70	12*	25	72	55	2
70	15*	40	72	55	2
75	12	16	75	60	2
80	10*	10	82	65	2
	12	16
	15	25
	20	40
90	10*	10	92	75	2
92	10	8	94	77	2
95	10	6	97	80	2
95	15*	16	97	80	2
100	10*	8	102	80	2
	12	10
	15	16
	20	25
	25	40
110	12.5	10	112	90	2
110	20	25	112	90	2
113	15*	10	113	88	2
115	15	10	117	95	2
120	10	8	122	100	2
125	15	10	127	100	2
	20	16
	25	25
	30*	40
130	15	10	132	105	2
135	25	25	137	110	2
150	10	2	152	105	2
	15*	8		125
	20	10
	25	16
	30	25
170	15	8	172	140	2
175	20	10	177	150	2
	25	16
	30	25
200	20	8	202	175	2
	25	10
	30	16
250	20	4	252	225	2
	25	8
	30	10
265	30	8	267	240	2

* extra dimension outside the DIN
** special sets
*** by reference solely to the customer

If you can not find dimension, please contact us.

Sight glasses gaskets

Dimensions [mm]:

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