EMERSON. YARWAY PROCESS THERMODYNAMIC STEAM TRAPS SERIES 40/40D AND C250/260 Designed for a variety of high pressure and high capacity applications found in utility, industrial and marine service. • Designed to fail open. • Designed for superheat steam. • Unaffected by corrosive condensate, freezing and steam lock. • In-line maintenance. • Designed to response to load charges. • Excellent air handling. • Small lightweight design. • Performance testing per ASME PTC-39.1, ISO 7841 and 7842. For condensate removal in high pressure industrial and steam systems. The C250 is typically smaller than other mechanical traps for high pressure applications. TECHNOLOGY: THERMODYNAMIC PISTON AND LEVER Size: Temperature Pressure rating: Capacity: Connections: Materials: Emerson.com/FinalControl © 2017 Emerson. All Rights Reserved VCTDS-02343-EN 19/05

GUIDELINES FOR TYPICAL PROCESS APPLICATIONS Depending on the application, a process steam trap will probably have to handle heavy startup loads, often followed by smaller running loads. The trap's function is to drain the process equipment and thus ensure that effective heat transfer is achieved (through latent heat). A few guidelines for optimum results include: • Provide an adequate size process connection from equipment. • Locate trap below the equipment (water runs downhill). • Use good piping practice to ensure that clean condensate is presented to the trap. • Include air vents and vacuum...

Why choose a thermodynamic steam trap? Thermodynamic traps are phase detectors in that they can discriminate between condensate and steam. The working principle is simple and, with only one moving part, these devices are small and rugged. There are three basic types of thermodynamic traps which differ from one another by the configuration of the valve they use to open and close a port. Each is well-adapted to a particular set of service conditions. The main thermodynamic feature that is desirable in process applications is the hot-running design and responsiveness to load changes. Thermodynamic...

YARWAY PROCESS THERMODYNAMIC STEAM TRAPS SERIES C-250 AND C-260 HIGH PRESSURE TRAPS (VARIABLE ORIFICE) The Yarway high pressure integral strainer trap is designed with Quick Change Trim (QCT) using the proven variable orifice (piston) internals. These traps are designed for a variety of high pressure applications found in utility, industrial and marine service. Typical applications include: fuel oil heaters, air heaters, reboilers, soot blower drains, steam separators, and shell and tube heat exchangers. The small lightweight design and broad range of operating pressures are among the many advantages...

YARWAY PROCESS THERMODYNAMIC STEAM TRAPS SERIES C-250/C-260 14 9 Part Body Trap bonnet Strainer bonnet Lock nut Control cylinder Control cylinder adapter Seat Valve piece Lock pin Screen Bonnet gasket (trap) Seat gasket Bonnet gasket (strainer) Stud (trap bonnet) Nut (trap bonnet) Stud (strainer bonnet) Nut (strainer bonnet) Split washer Material Cast chrome moly ASTM A-217 Gr. WC6 .15 Max C (body) Cast chrome moly ASTM A-217 Gr. WC6 .15 Max C (body) Cast chrome moly ASTM A-217 Gr. WC6 .15 Max C (body) Stainless steel AISI Series 400 Stainless steel AISI Series 400 mod Stainless steel AISI Series...

The Series 40/40D is designed for use in industrial process applications for pressures up to 100 bar and condensate loads to 36.300 kg/hr. Applicable codes and standards Pressure ratings per ANSI/FCI-69-1. Performance testing per ANSI/ASME PTC-39.1. End connections per ANSI B1.20.1. for threaded ends, per ANSI B16.11 for socketwelding ends, and per ANSI B16.5 for flanged ends. How to size Required steam trap flow rate = maximum expected condensate load (lb/hr) x Safety load factor. A safety load factor of 2-4 is usually recommended. Then select a trap from the condensate capacity chart. Do not...

DIMENSIONS/WEIGHTS SERIES 40 Size* Dimensions, in. (mm) Weight, * NPT Standard. Socketwelding or flanged end connections also available. Consult Yarway. MATERIALS AND SPECIFICATIONS SERIES 40 Item Part Material 1 Body Cast Cr-Moly steel ASTM A182-F22 11 Cap screw Alloy steel heat treated 12 Drive screw Stainless steel 13 Nameplate Stainless steel * Denotes available repair kit

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