Cast Iron and Ductile Iron Y Type Strainers

Transcription

1 SECTION 9b Cast Iron and Ductile Iron Y Type Strainers Tel: +44 (0) Fax: +44 (0) sales@hattersley.com export@hattersley.com

2 Contents and Numerical Index Cast Iron and Ductile Iron Y Strainers Contents Page Figure Number Index 2 Introduction 3 Cast Iron Y Strainer Data Sheet 4 Ductile Iron Y Strainer Data Sheet 5 Numerical Index Fig No Page 810 PN PN PN PN25 5 In this catalogue we have endeavoured to make the information as accurate as possible, but we cannot accept any responsibility should it be found that in any respect the information is inaccurate or incomplete or becomes so as a result of further developments. 2

3 Fig. 810 / 811 Strainers Fig 810 Figure 810 Features Cast iron construction Variety of flange connections available. Streamlined flow contours minimise pressure drop. Perforated stainless steel screen to to DEO Spec.036 Asbestos-free non-stick gasket. Suitable for saturated steam service. Comprehensive flow characteristics available. Available up to 600mm Figure 811 Features - as 810 except as follows Ductile iron construction PN25 rating Available up to PN40 rating Removal of debris from fluid transfer systems is vitally important in protecting the performance of pipeline equipment. Corrosion deposits, scale, jointing compounds and welding slag as well as more unusual articles must be trapped and prevented from causing system contamination and subsequent problems. The Y type design offers a reliable, cost effective means of equipment protection, minimising downtime and maintenance costs. Design of the Hattersley strainer is backed by years of experience in fluid handling particularly in the field of strainer manufacture and under an approved Quality System to BS EN ISO 9001, a quality product is guaranteed. Screening Straining is by the process of direct interception where the fluid passes through the perforation holes in the element the size of which are small enough to prevent passage of the particles. The Hattersley screening element is constructed from perforated stainless steel sheet in accordance with DEO Spec.036 requirements and is inherently stronger than weak mesh type elements which are susceptible to breaching when partial blockage causes increased pressure drop or collapsing under transient vacuum conditions. Mesh type screens are available for finer straining but these are fully supported by an outer rigid screen. Finer grade elements than are actually required should be avoided. 3

4 Fig. 810 / 910 Cast Iron Y Type Strainer PN16 Pressure/Temperature Rating 13 bar at 220ºC 16 bar from -10 to 120ºC Note: 910 restricted to 135 C Test Pressure (Hydraulic) Shell: 24 bar Bolted cover Fig. 910 supplied complete with two Fig. 631 test points and plugs. Flanges to BS EN PN16 Pressure bar Saturated Steam Temperature C Material Component Material BS EN ASME Body Cast Iron EN-JL1040 A126 Class B Cover Cast Iron EN-JL1040 A126 Class B Screen Stainless Steel SS 304 SS 304 Gasket Teflon / Graphite Plug Cast Iron EN-JL1040 A126 Class B Dimensions A mm B mm C mm Cover Plug in 1/ / 4 11/ 2 11/ Weight kg Flow kv Details on application A Screen Data Hole Dia mm Details on Free Flow Area/cm2 % application C B C=withdrawal distance for strainer element 4

5 Fig. 811 / 911 Ductile Iron Y Type Strainer PN25 Pressure/Temperature Rating PN bar at 220ºC 25 bar from -10 to 120ºC Note: 911 restricted to 180ºC Test Pressures (Hydraulic) Shell: 37.5 bar Material Component Material BS EN ASME Body Ductile Iron EN-JL1050 A Cover Ductile Iron EN-JL1050 A Screen Stainless Steel SS 304 SS 304 Gasket Teflon / Graphite Plug Ductile Iron EN-JL1050 A Bolted cover Figure 911 supplied complete with two Fig 750 valve controlled test points 50 to 100mm sizes flat faced drilled to BSEN PN25 All other sizes flanged to BSEN PN25 Dimensions A mm B mm C mm Details on Cover Plug in 1/ / 4 11/ 2 11/ application Weight kg Flow kv Screen Data Hole Dia mm Details on Free Flow Area/cm2 % application A C B C=withdrawal distance for strainer element 5