American National Standard for Equipment, Design & Installation of Ammonia Mechanical Refrigerating Systems. IIAR Ammonia Refrigeration Library, (1999). 93301 Ammonia Unloading. 6.2 Installation Hours. Win Job Center. Pipe insulation quantities were developed based on heat conservation and. PermaTherm Pipe provides easy-to-install EPS pipe insulation systems that provide superior performance at affordable costs. Call us or download our specs! Anhydrous Ammonia Regulatory Citation. Installation and operation of anhydrous ammonia. And vapor fixed piping of the transfer system within 5 lineal feet.

The heavy-duty, gas-powered, 2-step suction stop valve, Hansen’s HCK5D, is ideally suited for positive closure of suction, liquid overfeed and flooded evaporator return lines during defrost in low temperature industrial and commercial applications. Pentax Optio S12 Software Download. It can be installed in either horizontal or vertical lines and is best installed on its side for improved conveyance of liquid and oil. As it is gas-powered to close, the valve operates reliably even under viscous oil conditions.

It is suitable for use with both ammonia and CO 2. Key features • Internal, self-equalising piston assembly • Requires only one pilot solenoid valve for operation • Remains closed until pressure is equalised, during loss of power • Adjustable bleed rate via orificed plugs • No pressure drop required to open • Available sizes: 40mm to 100mm (1.5” to 4”) Simplified piping equals cost savings The HCK5D typically remains open via a spring and requires no pressure drop to operate. The self-equalising piston design eliminates the need for and cost of a separate equalising solenoid valve, as well as piping and associated wiring and controls. Only a single pilot solenoid valve is required to control a higher pressure refrigerant gas which closes the valve during defrost. With its internal, controlled bleed-down (equalise) feature, which will not allow the main seat to open until the pressure across the valve is at a lower, safe pressure differential, the HCK5D’s design eliminates the need for a separate bleed-down solenoid valve. This significantly simplifies piping and reduces installation costs.

If power is lost during defrost, evaporator pressure is used to keep the main valve seat closed until bleed-down is complete. The bleed rate is adjustable via screw-in orifice discs and protective pilot line disc strainers are included. Manual opening stems are standard for positive opening during servicing or trouble shooting of the system. The potential for hydraulic shock, due to the sudden opening of a suction valve under higher pressure after normal defrost or loss of power, is greatly reduced with the use of these HCK5D valves,” said Harold Streicher, VP of Sales at Hansen Technologies. About Hansen Technologies Hansen Technologies offers a complete line of industrial refrigeration solutions for a variety of applications.

It’s product line includes multi-valve stations, control valves, shut-off and solenoid valves, pressure-relief valves and regulators, pumps, auto-purgers, defrost and liquid level controls and safety detection systems.

: >>American National Standard for Equipment, Design and Installation of Ammonia Mechanical Refrigerating Systems American National Standard for Equipment, Design & Installation of Ammonia Mechanical Refrigerating Systems. IIAR Ammonia Refrigeration Library, (1999). Applies to closed circuit mechanical refrigerating systems using ammonia as a refrigerant. Contains information to specify equipment and machinery room design and installation for ammonia mechanical refrigerating systems.