❶ Pump ID Meaning

❷ Test Procedure
Each pump manufactured by CRYOSTAR is mechanically and cryogenically tested prior to shipment in our state-of-the-art testing facility to ensure that performance meets customer specification. The precision of measuring devices provides essential results: differential head, flow rate, seal gas consumption, pump efficiency, NPSH, noise and vibration levels - all documented and submitted to the customer.

❸ Quality
Designed in compliance with guidelines like IGC 11/82 norm

❹ Features

1. The cold end is slanted upwards by 10 degrees, thus improving degassing of the pump cylinder and preventing accumulation of gas in the suction chamber prior to start-up and during operation
2. Thanks to the excellent vacuum insulation, the lowest temperature is kept in the pump body, and the liquid is available for an instant re-start (without venting)
3. The suction chamber is designed to separate any flash gas from the incoming liquid, assuring a homogeneous flow of cold liquid into the cylinder
4. The straight inflow suction valve provides the best possible low resistance flow characteristic ensuring a low NPSH requirement. (large diameter of the inflow suction valve)
5. The thin “hat” seal rings remain flexible even at extremely low temperatures 
6. The cold end is either screwed in, or bolted to an intermediate piece. This open distance piece serves as a cold break between the cylinder and the crank drive
7. Both the crank drive and the intermediate part have connections for an optional nitrogen purge
8. Thermosiphon tank suction valve execution (option), allowing for a shorter cool down period as well as reduced losses 
9. Piston head made of bronze allowing a safer operation.

❺ Options

• PT100 probe in gas return line for cool-down protection
• Low Pressure seals heater for cold standby periods over 3 h
• PT100 probe in discharge line for anti-cavitation protection
• PT100 probe in intermediate piece for leakage detection.