Orifice Ring Selection Chart

Gob Length/
Diameter Ratio

1.5

2.8

5.0

Gob Weight	O/Ring Diameter	O/Ring Diameter	O/Ring Diameter
(grams)	(mm)	(mm)	(mm)
50	29	22	18
150	41	32	26
250	49	38	31
350	55	43	34
450	59	46	37
550	63	49	40
650	67	52	42
750	70	55	44
850	73	57	46
950	76	59	48
1050	79	61	50
1150	81	63	51
1250	83	65	53
1350	86	67	54
1450	88	68	55
1550	90	70	56
1650	92	71	58
1750	93	73	59
1850	95	74	60
1950	97	75	61
2050	98	77	62
Based upon Glass Density of 2350 Kg/m³