AG-Crosby safety selector valve
Provides high Cv values, resulting in less than 3% pressure drop to the active PRV inlet, when used with the largest API orifice available in a given valve size, in accordance with the recommendations of API RP520 Part II, Section 2.2 and ASME Section VIII, Division 1, Appendix M-7. Thereby greatly reducing the possibility of destructive chatter of the PRV.
Greatly reduces field installation costs and space requirements through preassembled and compact design.
Allows pressure relief device maintenance without process shutdown.
Meets all mandatory requirements of ASME Section VIII, Division 1, UG-135 (b).
No seat lapping required for maintenance.
Only recommended spare parts are soft goods which reduces cost of ownership.
(a) Sizes: 1"- 8"
(b) Pressure rating: ANSI #150 - #2500
(c) Material valve body: WCB, CF8M, Duplex, Inconel, Hastelloy, Monel etc (also NACE)
(d) Material in trim: PTFE, graphite, PEEK
(e) Type tested by DNV