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Type 2040 Safety Temperature Monitor (STM)

Type 2040 Safety Temperature Monitor (STM)
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Type 2040 Safety Temperature Monitor (STM) - 1

T 2090 EN Type 2040 Safety Temperature Monitor (STM) Self-operated temperature regulators for special applications Typetested by TÜV EC type examination Application Pressure regulator for cryogenic gases and liquids as well as other liquids, gases and vapors · Set point ranges from –45 to +10 °C · Temperature range from –60 to +60 °C · Operating pressure max. 40 bar · Free of oil and grease Industrial gases (such as argon, nitrogen and oxygen) are stored in a liquefied condition at extremely low temperatures and at a constant pressure in thermally insulated tanks. Pipes transport the medium to the consumer. To comply with the German pressure vessel ordinance, cryogenic media must be prevented from entering consumer plants which are not designed to handle such low temperatures. The Type 2040 Safety Temperature Monitors (STM) are used for protection in these applications. The safety temperature monitors close when the medium temperature falls below the temperature set point to prevent excessively cold process medium from entering the downstream consumer plant. Special features •• Self-operated regulator with integrated temperature sensor •• Convenient set point adjustment •• Free of oil and grease, suitable for oxygen (pmax. = 25 bar) •• Rugged, compact design featuring small dimensions The Type 2040 Safety Temperature Monitors are characterized by their increased safety. The regulators close automatically when the sensor system is defective. The use of Type 2040 Safety Temperature Monitors, however, is not only restricted to cryogenic applications. Due to their special design, these regulators can also handle gases and liquids under other operating conditions. Versions The Type 2040 Safety Temperature Monitor consists of a body, an integrated temperature sensor, a set point adjuster and the connecting body with G 1¼ A conical joints at both the inlet and outlet. Soldering nipples and welding ends including connection nuts are available as end connections (see Accessories). Fig. 1: Type 2040 Safety Temperature Monitor Special version Set point adjuster with set point marking · Reading in steps of 10 °C indicated by ring marks on the set point adjuster. Type test/type examination The Type 2040 Safety Temperature Monitors are typetested. The test mark is available on request. An EC type examination according to the Pressure Equipment Directive 97/23/EC, Module B has been performed on the Type 2040 Safety Temperature Monitors. SAMSON AKTIENGESELLSCHAFT · Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 · samson

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Type 2040 Safety Temperature Monitor (STM) - 2

Principle of operation The Type 2040 Safety Temperature Monitors (STM) operate according to the liquid expansion principle. The volume of the temperature-sensitive filling medium confined in the integrated temperature sensor (6) expands as the temperature rises and contracts again as the temperature falls. The regulators close when the temperature falls below an adjusted temperature set point to prevent excessively cold medium from entering the downstream plant. The Type 2040 Safety Temperature Monitor consists of the body (1) with integrated temperature sensor (6) and set point adjuster...

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Type 2040 Safety Temperature Monitor (STM) - 3

Table 1: Technical data • All pressures in bar (gauge)

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Type 2040 Safety Temperature Monitor (STM) - 4

Connecting parts with spherical liner Connecting parts with gasket Soldering nipple (brass) Dimensions in mm Welding ends (stainless steel) DN 15 Without set point indication: H1 = 108 ±1 mm With set point indication: H1 = 116 ±1 mm 1.8 kg (without connecting parts) Ordering text Type 2040 Safety Temperature Monitor (STM) Set point range ... Accessories · Connecting parts … Specifications subject to change without notice

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