Trillium Flow Technologies

From the outside, it probably looks to most people that one centrifugal pump test is pretty much like another, regardless of whether it is HI 14.6, ISO 9906, or API 610. However, all of these test codes have one thing in common: The pump manufacturer can set up and run the test at their preferred value of NPSHa. In the 11th edition of API 610, an optional test requirement was introduced. This is clause 8.3.3.6 (8.3.3.7 in API 610 12th edition). This clause of API 610 states: 8.3.3.7 If specified, the performance test shall be conducted with test stand NPSHA controlled to no more than 110 % of the NPSHA specified by the purchaser. However, since its introduction, it has seldom been invoked, perhaps because the value of this optional requirement isn't clear to most pump users and specifiers. So when does such testing add value? In order to do that, we need to understand what is actually happening inside the pump as NPSHa is reduced. Frequently, you will see posts on LinkedIn stating something to the effect of "provided NPSHa is > NPSHr, there is no cavitation." This is completely wrong. The NPSH knee curve below shows why such claims are wrong. Keep in mind that most centrifugal pumps operate with an NPSHa/NPSH3 ratio in the range of 1.15 to 1.5. As can be seen from the graphic, within that ratio, there is measurable cavitation (and head impairment) within the pump. Thus: All centrifugal pumps operate with cavitation, the only question is whether it is damaging cavitation. Water has noticeably more severe cavitation characteristics than hydrocarbons. This is due to differences in the fluids' physical characteristics (in particular, the vapor pressure and volume change). OEMs also use water to test pumps. Hence, if you have a pump intended for pumping a hydrocarbon, the vibration characteristics due to cavitation on a water test are likely to be significantly different from those measured when the pump is installed. All testing has an associated cost. So, it is important to consider whether this optional cost is justified in terms of the initial cost of the pump being purchased, the criticality of the service in terms of lost production costs, and the pump's Life Cycle Cost (LCC) considering the expected MTBR and repair costs. The decision about when to require this optional test at an extra cost will be different for each end user and pump service. Trillium recommends the following criteria for determining whether a test to API 8.3.3.7 should be specified. 1. The pump is used in a water (or a primarily water-based fluid) service AND 2. The pump is critical to the operation of the facility (i.e. failure will result in significant unplanned outage or loss of production) OR The pump rated power is > 300kW (400hp) per stage Trillium Flow Technologies are experts in pumps, and they can help you minimize total LCC for all your pumping needs. Find out more here: https://okt.to/gepDVu.

Trillium demonstrated our ability to support an oil and gas customer with our valve application solution expertise, wide valve product range, and global manufacturing flexibility for their FPSO project. Blakeborough control and choke valves were supplied from various manufacturing locations to meet the localized requirements of each customer, specification, and standard. All project management and documentation were provided from one central location to ensure consistency and continuity of communication and documentation. Low-pressure control valves were manufactured at our Suzhou plant in full compliance with project specifications, including Norsok M-650 approved suppliers for exotic alloys and painting in accordance with project-specific requirements and customer witness and Hold point requirements. This manufacturing route also had the benefit of being close to the fabrication yard that was building the module, so sea freight time was eliminated from the overall project schedule. The project also included the supply of control valves manufactured in Titanium for use in seawater applications. The use of Titanium is becoming more common in raw seawater systems where the ambient temperature is high due to its superior corrosion resistance. Forged API 6A choke valves in exotic and CRA materials were designed, manufactured, and tested within our API6A-approved UK manufacturing facility. While testing to API6A PR2 and AP6A PSL3G and multiple inspection requirements, the valves were delivered ahead of schedule. Trillium’s application knowledge and supply chain flexibility are key to supporting our customers with the supply of mission-critical products in today's FPSO industry, where project management, design, and fabrication can take place simultaneously in multiple global locations. Learn about our performance-engineered difference on our website: https://okt.to/igFtoj.

The WEMCO Screw-Flow pump is equipped with a proven single-vane screw-centrifugal impeller. The screw-centrifugal design provides clog-resistant pumping for trouble-free movement of solids, fibrous, and stringy materials. Learn more about our long history of innovation, design excellence, and product quality on our website: https://okt.to/s1TZk6.

Here at Trillium, we have vast experience accommodating our customers' stringent service specifications regarding the critical services our pumps provide under severe operating conditions. The two API VS6 8-stage closed drain pumps shown here will encounter hydrocarbons containing sulphur and H2S. Due to the high temperature and elevated viscosity of the pumped fluid, the pump barrels have been provided with heat tracing. This was achieved through steam tubing to reduce any possibility of coking, and then they were insulated. To learn more about our products and capabilities, head to our website: https://okt.to/iF6Uh3.

The Starsteam Section I Safety Relief Valve stands out for its exceptional tight shutoff, minimal blowdown, and dependability. Each of our STAR service centers is factory-trained and certified by the National Board to assemble Sarasin-RSBD products. Find your local STAR service center on our website: https://okt.to/BD4k3h.

Termomeccanica Pompe continues to offer local Saudi customers its OEM quality service through its local Al Jubail service center. The pictures here illustrate a recent major overhaul and repair performed on a competitors pump installed at a water transmission pumping station. The pump arrived at the Termomeccanica Saudia workshop following a previous repair carried out by a third party; the casing of the machine was damaged, especially on the axis line. In addition to a basic overhaul, Termomeccanica Saudia carried out the following operations: - Machining of the lower and upper casings with a portable boring machine - Welding of the casings for the make-over of the axis line - Final machining to the original dimensions of the lower and upper casings (by the same portable boring machine) - Application of internal ceramic coating on the bodies after machining and finishing - Manufacturing of all the spare parts which were not available (with upgraded materials given the high erosion condition inside the pump) Termomeccanica Saudia re-installed the machine on-site, closely following its commissioning (which included adjustments after the invasive intervention performed), and reported to the customer the related improvements obtained on the machine’s performance, especially on its lubrication system. Learn more about our complete service offering on our website: https://okt.to/g3f82K.

Understanding "flow" is crucial in pump engineering—it's defined as the volume of liquid that passes through a pump in a given time period. Flow is most commonly measured in units such as cubic meters per hour (m³/h) or US gallons per minute (USGPM), although there are many other options. Flow alongside pressure are the two most critical elements of pump sizing. While there are many (many!) exceptions, as a very rough guide, overhung pumps are used for low flows up to 4,000 m³/hr (17,000 USGPM), with between bearings pumps being used on flows over this point. Vertical pumps are used across all flow ranges. Pumps may be able to be described in terms of axial, mixed, or radial flow, while this is more to do with hydraulic geometry, it is worth briefly explaining here. Axial flow impellers discharge parallel to the shaft axis (think ship propeller) in contrast to radial flow, which pulls fluid into its axis then discharges it out at 90 degrees to the shaft (see image); mixed flow impellers discharge inbetween these two options.

It's not too late to RSVP for our upcoming webinar! During our webinar this week, discover how Trillium’s advanced valve technologies address critical challenges in power applications, enhancing efficiency, reliability, and safety! RSVP now to secure your seat: https://okt.to/Z3Pns4.

During our upcoming webinar, learn about the latest advancements in valve technology that optimize overall plant performance, reduce operating costs, and ensure compliance with stringent safety standards. Our webinar is FREE to attend; RSVP here: https://okt.to/PlfEyn

You don't want to miss our upcoming webinar! You'll learn about Trillium’s valve solutions that address common concerns, such as system stability, leakage prevention, and ease of maintenance. Two sessions are available; RSVP here to reserve your seat: https://okt.to/9cIE4y