[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-650423-105":59,"doc-detail-650423-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","571-slide-gates-material-specification-quality-and-fabrication-requirements","571 - Slide Gates - Material Specification - Quality and Fabrication Requirements","","MATERIAL SPECIFICATION 571 defines quality requirements and fabrication details for metal slide gates used for water control. It establishes how gate class is determined by seating and unseating head values expressed in feet of water, then specifies light-, moderate-, and heavy-duty gate types and corresponding materials. The specification lists acceptable metal castings, steels, zinc-coating guidance, and ASTM references, and describes construction elements such as frames, slides, guide assemblies, grooves, wedges, seat facings, and dimensional clearances under operating thrust conditions.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/571-slide-gates-material-specification-quality-and-fabrication-requirements/650423/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/571-slide-gates-material-specification-quality-and-fabrication-requirements/650423.png","ImageObject",300,407,{"name":92,"@type":93},"bocahgabuttt","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-24",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"How is the slide gate class specified in this document?","Question",{"text":112,"@type":113},"The gate class is expressed as two numerical values representing the seating head and unseating head, in feet of water, separated by a hyphen with the seating head listed first.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What material requirements apply to light duty slide gates?",{"text":117,"@type":113},"Light duty gates include cast iron MLS-1 gates with cast iron seat facings and MLS-2 fabricated metal gates, with fabricated gates generally built as galvanized steel with flat-back frames unless otherwise specified.",{"name":119,"@type":110,"acceptedAnswer":120},"What differentiates moderate and heavy duty gate construction?",{"text":121,"@type":113},"Moderate and heavy duty gates specify cast iron frames of specified types and gate slides with structural ribbing and machined features; heavy-duty gates add dovetailed grooves for seat facings, and both use guide and fastener material selections based on the specified heavy-duty type.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},650423,1792827338,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":19,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":29,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":143},962094248839,"https://ap-avatar.wpscdn.com/davatar_994ba38a5ba835b3df7d355c54d3ed8d","MATERIAL SPECIFICATION  \n571. SLIDE GATES  \n1. SCOPE  \nThis specification covers the quality of metal slide gates for water control.  \n2. CLASS AND TYPE OF GATE  \nThe class of gate will be expressed as a numerical symbol composed of the seating head and unseating head. The two numbers will be separated by a hyphen with the seating head listed first. For this purpose, the heads shall be expressed in terms of feet of water.  \nGates shall be of the specified types as defined below:  \nLight Duty:  \nType MLS-1 gates shall be cast iron with cast iron seat facings.  \nType MLS-2 gates shall be fabricated metal gates.  \nModerate Duty:  \nType MMS-1 gates shall be cast iron with bronze seat facings, cast iron or galvanized structural steel guides, and galvanized steel, bronze, or stainless steel fasteners.  \nType MMS-2 gates shall be cast iron with bronze seat facings, cost iron or stainless steel guides, and bronze or stainless steel fasteners. Guides and fasteners shall be stainless steel, when specified.  \nHeavy Duty:  \nType MHS-1 gates shall have gray cast iron slides, frames, guides and yokesand shall be fitted with: (1) bronze seat facings, bronze wedges and wedge blocks or wedge seat facings, and bronze stem blocks or thrust nuts,(2) bronze or stainless steel fasteners, and (3) cold rolled steel stems, except that stems shall be stainless steel where so specified.  \nType MHS-2 gates shall have gray cast iron slides, frame, guides, and yokes and shall be fitted with: (1) Stainless steel seat facings, wedges, wedge seat facings, stems and fasteners, and (2) austenitic cast iron stem blocks or thrust nuts.  \nType MHS-3 gates shall have austenitic gray cast iron slides, frames, guides, and yokes and shall be fitted with: (1) nickel-copper alloy seat facings, wedges, wedge seat facings, stems and fasteners, and (2) austenitic cast iron stem blocks or thrust nuts.  \nNRCS-IL-URB 571-1 10/98  \n3. QUALITY OF MATERIALS  \nMaterials for slide gates and appurtenances shall conform to the requirements of the applicable specifications listed below for the alloy, grade, type, or class of material and the condition and finish appropriate to the structural and operational  \nrequirements. Material  \nCast iron and  \nGray cast iron Austenitic cast iron Structural steel shapes,  \nplates, and bars Cold rolled steel Carbon steel bars Stainless steel  \nCastings, nickel and nickel alloy Carbon steel sheets and strips Zinc-coated carbon steel sheets Bronze bar, rods, shapes Naval bronze  \nPhosphor bronze Manganese bronze Silicon bronze Cast bronze  \nNickel-copper alloy plate, sheet, strip  \nNickel-copper alloy rod or bar Rubber for gaskets and seals  \nASTM Specification  \nA 48, Class 30, or A 126, Class B  \nA 436  \nA 36  \nA 108  \nA 108 or A 575  \nA 167, A 276, or A 582  \nType 302, 303, 304, or 304LA 494  \nA 569  \nA 653 or A 924  \nB 21 or B 98  \nB 21  \nB 103 or B 139  \nB 138 or B 584  \nB 98 or B 584  \nB 584 B 127  \nB 164 D 2000  \nNRCS-IL-URB 571-2 10/98  \nGalvanizing (zinc coating) shall conform to the requirements of Material Specification 582.  \n4. FABRICATED METAL GATES (LIGHT DUTY GATES)  \nFabricated metal gates shall be built to withstand the seating head expressed by the gate class designation. Unless otherwise specified, the gates shall be galvanized steel with flat-back frames.  \n5. CAST IRON GATES (LIGHT DUTY GATES)  \nThe frame shall be cast iron of the specified type. The front face shall be machined to receive the gate guides.  \nThe gate slide shall be cast iron and shall be fabricated to withstand the seating and unseating heads expressed by the gate class designation as defined in Section 2 of this specification.  \nGrooves shall be cast on the vertical sides of the slide to match the guide angles.  \nThe gates guides shall be galvanized structural steel and shall be fabricated to withstand the total thrust of the gate slide due to water pressure and wedge action under maximum operating conditions.  \nWedges and wedge seats shall have smooth bearin","cbCair0u1Oi0hrD3","https://ap.wps.com/l/cbCair0u1Oi0hrD3","pdf",14490,"English","# Scope\n## Class and Type of Gate\n## Quality of Materials\n## Fabricated Metal Gates (Light Duty)\n## Cast Iron Gates (Light Duty)\n## Frame or Seat (Moderate and Heavy Duty)\n## Gate Slide (Moderate and Heavy Duty)\n## Gate Guides (Moderate and Heavy Duty)","[{\"question\":\"How is the slide gate class specified in this document?\",\"answer\":\"The gate class is expressed as two numerical values representing the seating head and unseating head, in feet of water, separated by a hyphen with the seating head listed first.\"},{\"question\":\"What material requirements apply to light duty slide gates?\",\"answer\":\"Light duty gates include cast iron MLS-1 gates with cast iron seat facings and MLS-2 fabricated metal gates, with fabricated gates generally built as galvanized steel with flat-back frames unless otherwise specified.\"},{\"question\":\"What differentiates moderate and heavy duty gate construction?\",\"answer\":\"Moderate and heavy duty gates specify cast iron frames of specified types and gate slides with structural ribbing and machined features; heavy-duty gates add dovetailed grooves for seat facings, and both use guide and fastener material selections based on the specified heavy-duty type.\"}]","571 - Slide Gates - Material Specification - Quality and Fabrication Requirements | PDF",15]