Hello,
Just want to ask if when is the best time to did-engage the mechanical seal setting plates which is normally set by Pump Vendor in the factory before shipment of the pump to site.
Normally, this is the first thing that I do before doing the primary alignment(or any rotation of shaft) of...
Hi,
I have an API 610 pump being installed at site. Before we could go with the final alignment, we would need to align the piping with the pump flange.
There is a chance that the piping might need heating or cut and weld to have the flange gap and angularity to within API 686 criteria (in...
Hi,
I am currently installing my API 610 pumps as a pre requisite for grouting . I had the motor removed and have the motor mounting pedestals leveled to at least 0.25mm/m (API 686 requirement).I have leveled the pump mounting pedestal also within the same tolerance (without removing the pump...
Hi Guys,
We currently have an existing 30 m3/hr submerged motor centrifugal pump for a water service (Density 1000 kg/m3) with suspended solids 4-5 gram/liter. It was pumping the liquid from the pit to a differential pressure of 0.90 kg/cm2.
Now our Operations people again want's to have the...
Hi Guys,
Just wanted to know couple things with self priming pumps.
1. If the pump manufacturer says it is capable of suction lift of 6 Meters , then that means as long distance from highest point of the suction pipe to the surface of liquid plus head losses on the suction piping should be...
Hi,
We are currently looking for a possible Vendor to replace the existing Ethylene Transfer Pumps that we have at site. The old pumps were not so reliable and we end up servicing it every now and then. Thus we are exploring the possibility of sourcing the pumps from another Vendor. The...
Dear All,
We currently have our scheduled turn around soon and one of the task that we need to do is to totally empty the fresh water tank for servicing. Downstream the fresh water tank are two existing
fresh water pumps (P-1207AB) rated at 20m3/hr at 91.4 meter head. The tank volume is around...
Dear All,
I have a requirement to replace a sanitary water pump(centrifugal - submerged pump and motor)to an above ground centrifugal pump. The pump flow rate is 4 m3/hr and the head is 21 meters. The suction pressure available is - 0.4 kg/cm2g (negative).The new pump suction will be in a pit...
I have a pump which is pumping C9+ and the process data sheet requires harness of the casing and impeller of a minimum 42 HC. The stream has hard nonmetallic solid particles to max 2500 microns thus requires the particular hardness.
The Pump Vendor has offered an abrassion ressistant cast iron...
Hi,
We have currently purchased one small multistage(16 stages) 50 Hz pump for water service and was asking the Vendor to have a complete rotor balancing for it. However the Vendor replied that they would only balance the shaft, stage impellers with keys (not including the half coupling and...
Hi,
We are curently having a pump seal system design in which seal vendor provided the PG & PT of a Plan 53B in the refill line upstream of the check valve. I want to know if having the PG, PT upstream of the check valve on the refill line for plan 53B has any advantage or specific application...
Dear All,
I am currently working on a project which requires a revamp of an existing Plate Heat Exchanger. Performance needs to be enahnced by adding some number of plates. Now the hydraulics are fixed and the number of plates to be added has been proposed by Vendor. The existing PHE is ASME...
Hi,
I am currently going to modify an existing pump to enhance its process capabilities (increased impeller diameter).
There is a requirement from Client for a "Spin Test" for the impeller.
Can anyone enlighten me on what does a spin test for an impeller is for and how do we normally do it.
I...
Hi,
I am currently working on OH2 type pump that is in compliance with API 610 11th Edition.
Connection sizes are as follows : Suction : 6" /300lb/RF
Discharge : 4" /300lb/RF
Material of construction selected for this application is A351 CF8M.
I have a concern...
Hi,
Im currently working on an API 614 4th ed lube oil system and one requirement from Client is for it to have a "First Out Annunciator" (Para 6.3.7 API 614 4th.).
Could somebody advise if what is the purpose of this annunciator?
Does it have a separate panel in the local near the skid for...
Hi ,
Im new here and i'd like to ask experts opinion for my case.I am working for an epc contractor and our Client has a requirement for a BB5 pump with L.O. system. Client wants to have a complete unit test for this items (meaning both pumps A&B). Since API 610 10th para 7.3.4.3 for "Complete...
