GENERAL INFORMATION ABOUT PRESSURE （一般信息关于压力）.pdfVIP

Data sheet INFO GAUGE Date 03/2011 Page 1 of 4 GENERAL INFORMATION ABOUT PRESSURE GAUGES INTRODUCTION PCI’s gauges are tested and manufactured under ISO 9001 quality standards and comply with the following. Testing EN 837-1 (part 1) Bourdon tube pressure gauge EN 837-2 (part 2) selection, installation and recommendations EN 837-3 (part 3) diaphragm and capsule pressure gauge Connection threads All PCI gauges have threads according to : EN 837-1/7.3.1 – 7.3.2 – 7.3.3 and 7.3.4. Parallel pipe thread (symbol G) according ISO 228-1. Tapered pipe thread (symbol NPT) according ANSI/ASME B1.20.1. Full safety pattern gauges Safety pattern solid front type with baffle wall to EN 837-1/9.7.2/S2-S3 (old DIN design 16006/UNI8541/BS1780). Weatherproof standard for gauges IP54, IP55, IP65 (IEC529). Oxygen and acetylene version Wetted parts materials comply with EN 29539 and EN 837-1/9.7.2/S1. Free of oil and grease. Certified material specification All stainless steel and other exotic materials used in PCI production for connections, flanges, bourdon tubes, diaphragms (wetted gauge process parts) etc. are traceable, all materials are according to DIN EN 10204 – 2.2 or 3.1 (b). PED directive All the PCI pressure gauges are manufactured according to PED directive with release of relative certification for ranges starting from 200bar. ATEX directive All the PCI pressure gauges, on request may be manufactured with ATEX certification and are supplied complete with mark as required. Quality control PCI’s instruments are produced under the rigid codes of the instrumentation industry and QA standards EN- ISO9001:2008. Our company ISO procedures are continuously controlled and monitored by NQA. __________