The Low Pressure LSR™ Reverse Buckling Disk and SRB-7RS Safety Head

LSR Rupture Disk (Bursting Disc) Features:

• Designed for gas, liquid and multi-phase service
• Suitable for operating pressure to 90% of the minimum burst pressure
• Designed for non-fragmentation, recommended for Relief Valve isolation
• Damage safety ratio = 1
• Designed for non-fragmentation
• Vacuum resistant
• Back pressure resistance can be specified
• Available with ASME “UD” (select 0%, -5%, -10% Manufacturing Design Range)
• Pressure Equipment Directive “CE” marking and/or other International Certifications
• US and international patents pending

Burst Pressure Capability at 72ºF (22ºC)

Disk Size		Disk Material
		Nickel Alloy 200				Monel® Alloy 400				Inconel® Alloy 600				Hastelloy® Alloy C-276				316SS				Tantalum and Titanium
in	mm	psig		barg		psig		barg		psig		barg		psig		barg		psig		barg		psig		barg
		min	max	min	max	min	max	min	max	min	max	min	max	min	max	min	max	min	max	min	max	min	max	min	max
1	25	9	300	0.62	20	9	300	0.62	20	9	300	0.62	20	9	300	0.62	20	9	300	0.62	20	9	300	0.62	20
1.5	40	4	300	0.27	20	4	300	0.27	20	4	300	0.27	20	4	300	0.27	20	4	300	0.27	20	4	300	0.27	20
2	50	3	300	0.21	20	3	300	0.21	20	3	300	0.21	20	3	300	0.21	20	3	300	0.21	20	3	300	0.21	20
3	80	2.5	300	0.17	20	2.5	300	0.17	20	2.5	300	0.17	20	2.5	300	0.17	20	2.5	300	0.17	20	2.5	300	0.17	20
4	100	2	250	0.14	17	2	250	0.14	17	2	250	0.14	17	2	250	0.14	17	2	250	0.14	17	2	250	0.14	17
6	150	2	200	0.14	17	2	200	0.14	17	2	200	0.14	17	2	200	0.14	17	2	200	0.14	17	2	200	0.14	17