Catalog excerpts
High Temperature Valves Models 4075 and 4475 Overview The 4075/4475 high temperature valve is used to sense gas or liquid high temperature conditions. The field adjustable temperature setting from 54°C to 260°C (130°F to 500°F) provides wide setpoint flexibility. The standard thermowell provides extended life of the sensor and simplifies calibration and maintenance. Typical applications l Jacket water temperature l Compressor discharge temperature l Steam temperature l Lube oil temperature l Processs temperature Type 4075 High Temperature Valve Key features and benefits l 316 Stainless Steel or Cast Aluminum available l Field adjustable from 54°C to 260°C (130°F to 500°F) l Reliable protection l Few moving parts l Easy installation - low maintenance l Thermowell included l Compatible with complete AMOT shutdown systems l Viton seals
Open the catalog to page 1High Temperature Valves - Models 4075/4475 Operation The 4075/4475 is widely used for sensing high pressure natural gas compressor discharge temperature. When a valve is positioned at each compressor cylinder discharge manifold, an increase in temperature past the valves set point will cause the valve to vent off a control signal. Removal is quick and easy with the stainless steel which is supplied as part of the standard valve assembly. The valve assembly is held into the well by straight thread connections and a locking nut. Unscrewing the valve body/locknut and disconnecting the tubing...
Open the catalog to page 2High Temperature Valves - Models 4075/4475
Open the catalog to page 3High Temperature Valves - Models 4075/4475 How to order Use the table below to select the unique specification of your 4075 High Temperature Valve Temperature range 54°C to 260°C (130°F to 500°F) Specify trip point temperature when ordering if required to be factory set. *Pressures shown are maximum allowable. To obtain working pressure, factors of safety should be applied as required by appropriate codes or regulations. In certain adverse conditions, a corrosion or erosion allowance should also be made. Use the table below to select the unique specification of your 4475 High Temperature...
Open the catalog to page 4High Temperature Valves - Models 4075/4475 Adjustment Refer to cut-away view below. This model is checked at the factory for proper operation in a still air calibrating oven at approximately 150°C (300°F). To set the unit on the job to suit operating conditions, it should be piped into the safety control systems and be operational. The master safety control shut off valve should be overridden during adjustments so the machine will continue running. First remove Cap (14) by pulling upward. It is held in position by a groove in the Cap. Gradually lower the setting by holding the flats of Rod...
Open the catalog to page 5AMOT USA 8824 Fallbrook Dr Houston TX 77064 USA AMOT Western Way Bury St Edmunds Suffolk, IP33 3SZ England Asia and Australasia AMOT Shanghai Rm 4102 - 4104 United Plaza 1468 Nanjing Road West Shanghai 200040 China Tel +86 (0) 21 6279 7700 Fax +86 (0) 21 5237 8560 Email shanghai@amot.com AMOT Singapore 10 Eunos Road 8 #12-06 Singapore Post Centre Singapore 408600 Tel +65 6408 6265 Fax +65 6293 3307 Email singapore@amot.com
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