{"id":2571,"date":"2025-03-04T19:26:54","date_gmt":"2025-03-04T11:26:54","guid":{"rendered":"http:\/\/120.55.194.30\/product\/spirax-sarco-bsa1t-bsa2t-bsa3t-bsa6t-bellows-sealed-stop-valves\/"},"modified":"2026-03-24T11:51:01","modified_gmt":"2026-03-24T03:51:01","slug":"spirax-sarco-bsa1t-bsa2t-bsa3t-bsa6t-bellows-sealed-stop-valves","status":"publish","type":"product","link":"https:\/\/www.shopvalves.com\/en\/product\/spirax-sarco-bsa1t-bsa2t-bsa3t-bsa6t-bellows-sealed-stop-valves\/","title":{"rendered":"Spirax Sarco Spirax Sarco BSA3T Globe Valve Bellows Sealed Globe Valve"},"content":{"rendered":"<p>Spirax Sarco BSA and BSAT bellows sealed globe valves with double bellows seal are designed for use in steam, gas, liquid, condensate and water systems. The standard series BSAT has a throttled spool and stem locking device, the optional series BSA has a flat spool. The products comply with the European Pressure Equipment Directive 97\/23\/EC and some models are available with EN 10204 3.1 certificate.<\/p>\n<h3>Product weight (approximate) kg<\/h3>\n<table>\n<thead>\n<tr>\n<th>caliber<\/th>\n<th>BSA2 BSA2T<\/th>\n<th>BSA3 (DIN)<\/th>\n<th>bsa3 (ansi) ansi 150<\/th>\n<th>bsa3 ansi 300 jis\/ks 20k<\/th>\n<th>BSA6T PN40<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>DN15<\/td>\n<td>4<\/td>\n<td>4<\/td>\n<td>5<\/td>\n<td>6<\/td>\n<td>4<\/td>\n<\/tr>\n<tr>\n<td>DN20<\/td>\n<td>4<\/td>\n<td>5<\/td>\n<td>6<\/td>\n<td>7<\/td>\n<td>5<\/td>\n<\/tr>\n<tr>\n<td>DN25<\/td>\n<td>5<\/td>\n<td>6<\/td>\n<td>8<\/td>\n<td>9<\/td>\n<td>6<\/td>\n<\/tr>\n<tr>\n<td>DN32<\/td>\n<td>7<\/td>\n<td>8<\/td>\n<td>-<\/td>\n<td>-<\/td>\n<td>8<\/td>\n<\/tr>\n<tr>\n<td>DN40<\/td>\n<td>10<\/td>\n<td>11<\/td>\n<td>10<\/td>\n<td>11<\/td>\n<td>11<\/td>\n<\/tr>\n<tr>\n<td>DN50<\/td>\n<td>12<\/td>\n<td>14<\/td>\n<td>12<\/td>\n<td>15<\/td>\n<td>14<\/td>\n<\/tr>\n<tr>\n<td>DN65<\/td>\n<td>16<\/td>\n<td>19<\/td>\n<td>-<\/td>\n<td>-<\/td>\n<td>19<\/td>\n<\/tr>\n<tr>\n<td>DN80<\/td>\n<td>21<\/td>\n<td>26<\/td>\n<td>25<\/td>\n<td>29<\/td>\n<td>26<\/td>\n<\/tr>\n<tr>\n<td>DN100<\/td>\n<td>36<\/td>\n<td>44<\/td>\n<td>41<\/td>\n<td>49<\/td>\n<td>44<\/td>\n<\/tr>\n<tr>\n<td>DN125<\/td>\n<td>52<\/td>\n<td>64<\/td>\n<td>-<\/td>\n<td>-<\/td>\n<td>-<\/td>\n<\/tr>\n<tr>\n<td>DN150<\/td>\n<td>75<\/td>\n<td>88<\/td>\n<td>-<\/td>\n<td>94<\/td>\n<td>-<\/td>\n<\/tr>\n<tr>\n<td>DN200<\/td>\n<td>145<\/td>\n<td>-<\/td>\n<td>-<\/td>\n<td>-<\/td>\n<td>193<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Sealing Grade<\/h3>\n<p>Spool-seat sealing in accordance with EN 12266 - 1 Class A and ISO 5208 Class A. BSA3 (ANSI) sealing class in accordance with API 598 zero leakage.<\/p>\n<h3>material (that sth is made of)<\/h3>\n<ul>\n<li><strong>BSA6T Material<\/strong><br \/>\n<table>\n<thead>\n<tr>\n<th>Item<\/th>\n<th>Part<\/th>\n<th>BSA6T<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>valve body<\/td>\n<td>Stainless steel EN 10213 1.4408 or STM A351 CF8M<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>bonnet<\/td>\n<td>Stainless steel EN 10213 1.4581<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Seat<\/td>\n<td>Stainless steel EN 10213 1.4408 or STM A351 CF8M<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>compact disc<\/td>\n<td>DN15 - DN40: stainless steel EN 10088 1.4571; DN50 - DN100: stainless steel EN 100222 1.4571<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>bellow<\/td>\n<td>Stainless steel DIN 17440 1.4571<\/td>\n<\/tr>\n<tr>\n<td>6<\/td>\n<td>tappet<\/td>\n<td>Stainless steel EN 10088 1.4571<\/td>\n<\/tr>\n<tr>\n<td>7<\/td>\n<td>handwheels<\/td>\n<td>Pressed steel BS 1449 CR4<\/td>\n<\/tr>\n<tr>\n<td>8<\/td>\n<td>Stem packing<\/td>\n<td>plumbago<\/td>\n<\/tr>\n<tr>\n<td>9<\/td>\n<td>Bonnet bolts<\/td>\n<td>Stainless steel A4 - 70<\/td>\n<\/tr>\n<tr>\n<td>10<\/td>\n<td>Bonnet Nut<\/td>\n<td>Stainless steel A4<\/td>\n<\/tr>\n<tr>\n<td>11<\/td>\n<td>Body\/Bonnet Gasket<\/td>\n<td>Stainless steel reinforced flake graphite<\/td>\n<\/tr>\n<tr>\n<td>12<\/td>\n<td>locknut<\/td>\n<td>DN15 - DN80: steel M8\u00d714mm A2 - 70; DN100 - DN150: steel M8\u00d720mm A2 - 70; DN200 - DN250: steel M12\u00d720mm A2 - 70<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ul>\n<h3>Stroke Limit for Throttle Models<\/h3>\n<p>Protective covers BSA2T and BSA3T have a threaded hole in the handwheel nut for mounting a travel limiter. Customers supply their own standard bolts and nuts from the table below.<\/p>\n<table>\n<thead>\n<tr>\n<th>caliber<\/th>\n<th>hexagonal bolt<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>DN15 - DN80<\/td>\n<td>M8\u00d750mm<\/td>\n<\/tr>\n<tr>\n<td>DN100 - DN150<\/td>\n<td>M12\u00d775mm<\/td>\n<\/tr>\n<tr>\n<td>DN200 - DN250<\/td>\n<td>M12\u00d7100mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The handwheel nut on the BSA6T also has a threaded hole for the stroke limiter. Customer supplied standard bolts and nuts are the same as above.<\/p>\n<h3>Valve body design conditions<\/h3>\n<ul>\n<li><strong>BSA2T and BSA2<\/strong><\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th>Valve body design conditions<\/th>\n<th>PN16<\/th>\n<th>PN25<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>PMA - Maximum Allowable Pressure<\/td>\n<td>16 bar g<\/td>\n<td>25 bar g<\/td>\n<\/tr>\n<tr>\n<td>TMA - Maximum Allowable Temperature<\/td>\n<td>350 \u00b0C<\/td>\n<td>350 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>PMO Maximum Working Pressure under Saturated Steam<\/td>\n<td>14.7 bar g<\/td>\n<td>22.3 bar g<\/td>\n<\/tr>\n<tr>\n<td>TMO Maximum Operating Temperature (Soft Seat)<\/td>\n<td>230 \u00b0C<\/td>\n<td>230 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>TMO Maximum Operating Temperature (Metal Seat)<\/td>\n<td>350 \u00b0C<\/td>\n<td>350 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Minimum working temperature<\/td>\n<td>-10 \u00b0C<\/td>\n<td>-10 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Design maximum cold hydraulic test pressure<\/td>\n<td>24 bar g<\/td>\n<td>38 bar g<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><!-- \u6280\u672f\u8d44\u6599\u4e0b\u8f7d\u533a\u5757 --><\/p>\n<div class=\"valve-documents\">\n<h3 class=\"doc-title\">Technical Data Download<\/h3>\n<div class=\"doc-links\">\n<a href=\"https:\/\/doc.shopvalves.com\/BSAT_BSA-TI-P137-18-EN.pdf\" class=\"doc-link\" target=\"_blank\">bsat_bsa-ti-p137-18-en.pdf<\/a><br \/><a href=\"https:\/\/doc.shopvalves.com\/TI-P137-18-Chinese.pdf\" class=\"doc-link\" target=\"_blank\">TI-P137-18-Chinese.pdf<\/a>    <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Spirax Sarco Spirax Sarco BSA and BSAT Bellows Sealed Globe Valves with double bellows seal are designed for use with steam, gas, liquid,...<\/p>","protected":false},"featured_media":3646,"template":"","meta":{"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false},"product_brand":[24],"product_cat":[54,85],"product_tag":[60,63,65],"class_list":{"0":"post-2571","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-spirax-sarco","7":"product_cat-isolation-valves","8":"product_cat-bellows-sealed-stop-valves","9":"product_tag-spiraxsarco-stop-valves","10":"product_tag-spiraxsarco-steam-stop-valves","11":"product_tag-spiraxsarco-valves","13":"first","14":"instock","15":"sale","16":"shipping-taxable","17":"purchasable","18":"product-type-variable","19":"entry","20":"content-bg","21":"loop-entry"},"_links":{"self":[{"href":"https:\/\/www.shopvalves.com\/en\/wp-json\/wp\/v2\/product\/2571","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.shopvalves.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.shopvalves.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.shopvalves.com\/en\/wp-json\/wp\/v2\/media\/3646"}],"wp:attachment":[{"href":"https:\/\/www.shopvalves.com\/en\/wp-json\/wp\/v2\/media?parent=2571"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.shopvalves.com\/en\/wp-json\/wp\/v2\/product_brand?post=2571"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.shopvalves.com\/en\/wp-json\/wp\/v2\/product_cat?post=2571"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.shopvalves.com\/en\/wp-json\/wp\/v2\/product_tag?post=2571"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}