In August 2010, LESER (www.leser.com) will introduce a new product series: the pilot-operated safety valve. Both pop-action valves (Series 810) and modulate-action valves (Series 820) are available.<\/p>\n
The typical application areas of the pilot-operated safety valve (POSV) are refineries and gas processing plants, compressors in gas pipeline systems and offshore applications. The own-media-controlled POSV offers the advantage that the plant can be run close to the set pressure of the valve. This leads to an increase in the capacity utilization and consequently of the efficiency of the plant. Furthermore, POSVs allow higher external back pressures than spring-loaded valves.<\/p>\n
By means of the harmonized standard DIN EN ISO 4126-4 pilot-operated safety valves are now also approved in Europe. For decades already their technology has been proven in the American market and in the Middle East.<\/p>\n
The LESER POSV will be with a short four-week lead time ex works in Germany. As a special design feature, the tubing between the pilot valve and the main valve is integrated in the main valve cover, reducing the risk of damage or freezing. The backflow preventer is included as standard.<\/p>\n
The POSV will be part of the new LESER product group High Efficiency. This group unites all products which increase the efficiency and the productivity of the plant. <\/p>\n
Features at a glance:<\/p>\n
– Design in compliance with API 526
\n– Valve sizes from DN 25 to DN 200 (1″ x 2″ to 8″ x 10″)
\n– Orifice D to T
\n– Flange pressure ranges according to DIN EN PN 10 – PN 63 (DIN EN), 2.5 bar – 63 bar (36 psig – 914 psig)
\n– Flange pressure ranges according to ASME CL 150 – CL 600, 36 psig – 1480 psig (2,5 bar – 102 bar)
\n– Approval according to ASME VIII, PED and Vd T\u00dcV
\n– Body materials WCB, CF8M, LCB, 1.0619, 1.4408<\/p>\n
Advantages at a glance:<\/p>\n
– Tightness guaranteed up to 97% of set pressure – operating pressure can be close to set pressure
\n– Short blowdown for minimum product loss in case of valve opening
\n– Lower risk of damage due to a reduction of the exterior piping
\n– Backflow preventer included as standard
\n– Fast availability: four weeks delivery time ex works
\n– Free sizing software VALVESTAR<\/p>\n","protected":false},"excerpt":{"rendered":"
In August 2010, LESER (www.leser.com) will introduce a new product series: the pilot-operated safety valve. Both pop-action valves (Series 810) and modulate-action valves (Series 820) are available. The typical application areas of the pilot-operated safety valve (POSV) are refineries and gas processing plants, compressors in gas pipeline systems and offshore applications. The own-media-controlled POSV offers […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-544605","post","type-post","status-publish","format-standard","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts\/544605","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/comments?post=544605"}],"version-history":[{"count":0,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts\/544605\/revisions"}],"wp:attachment":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/media?parent=544605"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/categories?post=544605"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/tags?post=544605"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}