REV-7R™ Safety Heads (Holders)

RE Disk

The unique fail safe design of the RE type disk assures the disk cannot be installed incorrectly in the safety head.

REV/REV-7R

REV Graphite Rupture Disk in REV-7R Safety Head (type REL/REL-7R excluding vacuum support)

Performance Features

Insert type safety head that fits inside the bolt circle of companion flanges to allow for easy installation and removal
Pre-Assembled cost-effective solution
Asymmetric alignment pins in the safety head mate with locating holes in the rupture disk, ensuring centering and correct orientation of the rupture disk within the safety head
Flow arrows on the side of the safety head indicate correct directional installation with process flow
For use with flanged piping connections; Raised face, Ring joint and tongue and groove flange facings. Designed for multi flange ratings and piping standards
The rupture disk dome fully protected within safety head inlet to avoid damage when installed into piping system
Safety head equipped with a dial type support to allow the rupture disk to withstand full vacuum and/or high backpressure

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Sizes & Pressures
Disks & Sensors
Materials & Option
Accessories
Documentation

Sizes & Pressures

Disk Size		psig		barg		316ss		Graphite
Disk Size		Burst Pressure				Total Assembly Thickness ‘A’
in	mm	min	max	min	max	in	mm	in	mm
1	25	10	435	0.7	30	1.1	28	1.1	28
1.5	40	7	290	0.5	20	1.1	28	1.2	31
2	50	3	217	0.2	15	1.1	28	1.3	32
2.5	65	3	174	0.2	12	1.2	30	1.5	37
3	80	2.2	145	0.2	10	1.4	35	1.7	42
4	100	2.2	116	0.2	8	1.5	37	1.9	47
5	125	1.5	87	0.1	6	1.6	40	1.9	47
6	150	1	72	0.1	5	1.7	44	1.9	47
8	200	1	58	0.1	4	2	50	2.4	61
10	250	1	43	0.1	3	2	53	2.7	68
12	300	1	36	0.1	3	2.4	61	3	76
14	350	1	29	0.1	2	2.5	63	3.2	80
16	400	1	21	0.1	2	2.8	70	3.3	83
18	450	1	21	0.1	2	3	77	3.6	92
20	500	1	17	0.1	1	3.5	88	4.1	105
24	600	1	17	0.1	1	3.7	93	4.4	111

Rupture Disks

RE Disk

Sensors

Armored LDAS Sensor

Standard Materials

Carbon Steel, 316SS or Impregnated Graphite.

Torque Resistant Safety Head Option

The Type TR™ Series torque resistant safety head option offers the identical performance and flow characteristics valued from standard BS&B safety heads. The only difference – the TR Series Safety Heads are designed with a wider seating surface to be used with metal spiral wound gaskets at the flange. This distinct safety feature protects rupture disks from situations where plant personnel may overtorque rupture disks within piping systems.

Because of the wider seating surface of the TR Series Safety Head, the load is distributed over a much broader area reducing the influence of excessive torque transmitted to the disk.

Accessories

BS&B supplies many of the Accessories required to safely and conveniently install our overpressure relief devices and complementary products. Through our professional team and global network of sales engineers and procurement personnel, we are able to provide the highest quality accessory products to meet your installation requirements.