Search results for query: *

Hi Experts, Pumping liquid has chloride concentration in a minimum of 1000 ppm and some have 22000 ppm with an operating temp. of >66C. Pumps have seal Plan 32 with seal tubing material specified as 316SS. Given the properties of the pumping liquid, there is a potential for chloride stress...

Hi experts, Can a motor with 10HP, rotor speed of 1765 rpm having synchronous speed of 1800 rpm drive a centrifugal pump with 1770 rpm and rated power of 7.3HP? Motor rotor speed is less than pump speed but can the motor accelerate the pump to its rated speed? Or motor rotor speed and pump...

Hi experts, Sorry for a rookie question. Turndown ratio specified in the data sheet of 0.6. Pump manufacturer has specified 10:1. Is this acceptable? My understanding is that turndown ratio is pump manufacturer's capability, as long as the rated capacity of the pump is 110% more than maximum...

Hello experts, The scenario is this: The BEP flow of the pump is near the end of curve(pump run-out condition).The pump is operating 108% from BEP which makes it very near to the end of curve. It has a considerable amount of NPSH margin of 8 feet. Is this kind of pump acceptable? If not, please...

hello experts, Sorry for the rookie question. I have a pump with a dual pressurized Plan 53B. Does a "drain" required in the seal gland? Whats the best practice? Because per API 682, "quench" and "drain" connections are rarely provided because they are only required when a throttle bushing is...

Experts, What is the difference between the MAX DIFFERENTIAL HEAD and the SHUT-OFF HEAD of a centrifugal pump?Are these the same? Thanks.

Hi experts, We have two VS4 type pumps mounted on a horizontal vessel with Ø2000 mm. One operating and one standby. Duty pump will start on high liquid level and will shutdown on low liquid level. If liquid level continues to rise to high high liquid level, the standby pump will start. Both...

API 610 para 7.3.4.7.1 states that pump, if specified, shall be run on the test stand until oil temperature stabilization has been achieved. Is VS4/VS5 grease-lubricated pump covered in the statement?Is "grease" covered in the word "oil" in the paragraph?I think grease and oil are different...

Hi Can anyone please give specific configuration of a centrifugal pump that is self-venting? API 610 states that all pumps shall be provided with vent and drain connections, except that vent connections may be ommitted if the pump is made self-venting by the arrangement of the nozzles. What kind...