RE/RE-7R Replaceable Element Disks

RE/RE-7R The unique fail safe design of the RE™ type disk assures the disk cannot be installed incorrectly in the safety head as the disk will burst at its rated burst pressure in either direction. Additionally, the disk and safety head assembly may be installed in either direction between pipe flanges. A disk with a burst pressure of 22psig (1.52 bar) or above will withstand full vacuum.

RE-7R™ Safety Head
The RE™ type disk is installed in a precision machined RE-7R™ safety head for direct installation between standard international pipe flanges
Flange Ratings
The safety heads are designed to fit between all standard international pipe flanges, ANSI, DIN, AFNOR, BS, JIS and to nestle within the flange bolts
Material
Safety heads are available in impregnated graphite or 316SS as standard
Patented: US 5,121,847 Japan 2611105

Specifications

Nominal Size		Burst Ratings @ 22ºC (72ºF)				Internal Diameter		Total Assembly Thickness
Nominal Size		min.		max.		Internal Diameter		316SS		Graphite
in.	mm	barg	psig	barg	psig	mm	in.	mm	in.	mm	in.
1	25	0.70	10.0	30.0	435	32	1.26	28	1.10	28	1.10
1.5	40	0.48	7.0	20.0	290	48	1.89	28	1.10	31	1.22
2	50	0.20	3.0	15.0	217	64	2.52	28	1.10	32	1.26
2.5	65	0.20	3.0	12.0	174	76	2.99	30	1.18	37	1.46
3	80	0.15	2.2	10.0	145	89	3.50	35	1.38	42	1.65
4	100	0.15	2.2	8.0	116	114	4.49	37	1.46	47	1.85
5	125	0.10	1.5	6.0	87	140	5.51	40	1.57	47	1.85
6	150	0.07	1.0	5.0	72	165	6.50	44	1.73	47	1.85
8	200	0.07	1.0	4.0	58	216	8.50	50	1.97	61	2.38
10	250	0.07	1.0	3.0	43	267	10.51	53	2.09	68	2.68
12	300	0.07	1.0	2.5	36	318	12.52	61	2.40	76	2.99
14	350	0.07	1.0	2.0	29	356	14.02	63	2.48	80	3.15
16	400	0.07	1.0	1.5	21	406	15.98	70	2.76	83	3.27
18	450	0.07	1.0	1.5	21	457	17.99	77	3.03	92	3.62
20	500	0.07	1.0	1.2	17	508	20.00	88	3.46	105	4.13
24	600	0.07	1.0	1.2	17	610	24.02	93	3.66	111	4.37