{"product_id":"watson-mcdaniel-td900s-series-thermodynamic-steam-trap-1-2-3-4-1-npt-high-pressure-internal-strainer-blowdown-valve-repairable-in-line-low-carbon-chrome-moly","title":"Watson McDaniel TD900S Series Thermodynamic Steam Trap, 1\/2\", 3\/4\", 1\" NPT, High-Pressure Internal Strainer \u0026 Blowdown Valve, Repairable In-Line, Low Carbon Chrome-Moly","description":"\u003ch2\u003eWatson McDaniel TD900S Series High Pressure Thermodynamic Steam Trap (Repairable In-Line)\u003c\/h2\u003e \u003ch2\u003eFeatures:\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e“Quick-Change\" seat and disc for easy in-line repair\u003c\/li\u003e \u003cli\u003eHigh pressure applications up to 900 PSIG\u003c\/li\u003e \u003cli\u003eIntegral strainer to protect trap from contamination\u003c\/li\u003e \u003cli\u003eHardened stainless steel seat and disc for extended service life even at extremely high pressures\u003c\/li\u003e \u003cli\u003eSingle trap model will operate over the entire pressure range (20-900 PSIG)\u003c\/li\u003e \u003cli\u003eSuitable for superheated steam\u003c\/li\u003e \u003cli\u003eFreezeproof when trap is piped in a vertical orientation for complete drainage of condensate\u003c\/li\u003e \u003cli\u003eTrap will function in any orientation (horizontal preferred)\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eOptions \u0026amp; Features (See Specification Sheet For Full List):\u003c\/strong\u003e\u003c\/p\u003e \u003ch2\u003eTD900S - High Pressure Repairable In-Line\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eDRIP:\u003c\/strong\u003e The TD900S Thermodynamic steam trap is primarily used as a drip trap on high pressure steam mains and steam supply lines when a repairable trap type is desired. Ideal for outdoor applications that are subject to freezing and for super heated steam conditions. The TD900LS is recommended for pressure over 300 PSI.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eDRIP:\u003c\/strong\u003e TD900S model steam traps, capable of handling pressures up to 900 PSIG, are used in drip applications such as draining condensate from steam mains and steam supply lines. The complete internal working mechanism can be replaced while the trap body remains connected in-line. All models contain an integral strainer for protection against dirt and scale. These traps are suitable for outdoor applications that are subject to freezing as well as superheated steam conditions.\u003c\/p\u003e \u003cdiv style=\"clear: both;\"\u003e \u003c\/div\u003e \u003cdiv class=\"tech\"\u003e \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e \u003cdiv class=\"specs\"\u003e \u003cdiv class=\"column\"\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eModel\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003eTD700S, TD700HS\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eSizes\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003e1\/2\", 3\/4\", 1\"\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eConnections\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003eNPT, SW, FLG\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eBody Material\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003eASME SA-182 F-11 Chrome-Moly\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eOptions\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003eBlowdown Valve, Insulation Cap\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003ePMO Max. Operating Pressure\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003e650 PSIG\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"column\"\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eTMO Max. Operating Temperature\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003e800°F\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003ePMA Max. Allowable Pressure\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003e650 PSIG up to 800°F\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eTMA Max. Allowable Temperature\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003e800°F @ 650 PSIG\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003ePart Number\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003eTDF700HSB-12-N\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eOptions\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003eHS, Blowdown\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv style=\"clear: both;\"\u003e \u003c\/div\u003e \u003ch2\u003eHow It Works\u003c\/h2\u003e \u003cp\u003eThe disc is the only moving part inside a thermodynamic trap. When steam enters the trap, it creates an internal pressure above the disc that instantly forces the disc to close tightly on the seat, preventing the steam from escaping. The internal steam pressure (holding the disc and seat shut) eventually drops, and the trap re-opens. When condensate enters the trap, it pushes the disc upwards, allowing the condensate to freely discharge. If steam is present, the trap instantly shuts.\u003c\/p\u003e \u003ch2\u003eSelection \/ Sizing \/ Capacities\u003c\/h2\u003e \u003cp\u003eThe TD900LS is a reduced capacity version of the standard TD900S model. The TD900S is available in NPT, Socket Weld, and Flange connections from 1\/2\" thru 1\". Select working pressure; follow column down to correct capacity (lbs\/hr) block.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eExample:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eApplication: 800 lbs\/hr at 400 PSIG working inlet pressure\u003c\/li\u003e \u003cli\u003eSize\/Model: TD900S, specify pipe size and connections (NPT, SW)\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eNotes: \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eTD900S: \u003c\/strong\u003e\u003c\/p\u003e \u003col\u003e \u003cli\u003eMinimum recommended working pressure: 20 PSIG.\u003c\/li\u003e \u003cli\u003eMaximum back pressure not to exceed 80% of inlet pressure (measured in absolute pressure) or trap may not close.\u003c\/li\u003e \u003c\/ol\u003e \u003cp\u003e\u003cstrong\u003eTD900LS: \u003c\/strong\u003e\u003c\/p\u003e \u003col\u003e \u003cli\u003eMinimum recommended working pressure: 150 PSIG.\u003c\/li\u003e \u003cli\u003eMaximum back pressure not to exceed 50% of inlet pressure (measured in absolute pressure) or trap may not close.\u003c\/li\u003e \u003c\/ol\u003e \u003ch2\u003eInstallation and Maintenance\u003c\/h2\u003e \u003cp\u003eThe TD900S can be installed in any orientation; however, horizontal with cap facing upward is preferred for longest service life. For maintenance, ALL internal components are easily removed and completely changed using a replacement kit. All models contain an integral strainer for protection against dirt and scale. Available in NPT, Socket-Weld and Flange connections.\u003c\/p\u003e \u003ch2\u003eSample Specification\u003c\/h2\u003e \u003cp\u003eThe steam trap shall be a thermodynamic style with body material in chrome-moly alloy steel. Available in size 1\/2\", 3\/4\" and 1\" Class 600 socket weld ends or flanges. Unit shall have hardened stainless steel seat and disc with a removable stainless steel strainer.\u003c\/p\u003e \u003ch2\u003e \u003c\/h2\u003e \u003ch2\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0721\/4576\/4430\/files\/Watson-McDaniel-TD900S-High-Pressure-Repairable-In-Line-Spec-Sheet.pdf?v=1786494045\"\u003eView Technical Specification Sheet Here\u003c\/a\u003e\u003c\/h2\u003e","brand":"Watson McDaniel","offers":[{"title":"Default Title","offer_id":44165691605070,"sku":"WM-TD900LS-12-N","price":1348.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0721\/4576\/4430\/files\/Watson-McDaniel-TD900S-High-Pressure-Repairable-In-Line__78499.1784300261.1280.1280.jpg?v=1786661229","url":"https:\/\/valveman.com\/products\/watson-mcdaniel-td900s-series-thermodynamic-steam-trap-1-2-3-4-1-npt-high-pressure-internal-strainer-blowdown-valve-repairable-in-line-low-carbon-chrome-moly","provider":"ValveMan","version":"1.0","type":"link"}