mud pump packing factory

Then we collaborated with customers located throughout North America for more than a year to test Redline Packing and ensure its success across a variety of challenging environments. The results are remarkable, showing almost a two-fold increase in life vs the top competitor. Redline Packing is available today for GD Energy Products frac and well service pumps, and most competitor’s pumps as well.

Standard Industrial Manufacturing started in 1979. Our mission was to manufacture and supply pump parts to a few select pump retailers and OEMs. During the 1980s the company expanded its customer base to include all pump retailers and OEMs. Today, Standard has broadened its product lines to include most fluid-end expendables for all major pump brands.

​​​​​Pump packing is ideal for the controlled leakage required for certain applications. ​Chesterton offers extensive applications ​expertise in pump packing solutions for rotating equipment—including design, selection, installation, testing, and more. Our  innovative and award-winning packing solutionsreduce power requirements for the pump and result in less leakage—lowering the total life cycle costs of the pumping system.​

During the 1950’s the Mission” 1780 type “W” pumps were introduced to replace duplex pumps while creating the first low pressure mud system. The use of a high quality concentric type centrifugal pump allowed abrasive fluids to be mixed and transferred while reducing initial and maintenance costs for the drilling industry. The low-pressure mud system with Mission 1 780 Type “W” centrifugal pumps became the industry standard.

As well depths increased so did the need for heavier mud weights. When the mud weight began exceeding 14 ppg the need for a pump that could withstand greater horsepower loads arose. During the 1970’s Mission organized a design team that engineered the Mission Magnum. The Magnum was designed to have the same footprint, flange locations, and drive shaft diameter as the 1780 “W”. This allowed a 1780 to be replaced by a Magnum without any skid modifications. The Magnums were originally engineered with a 2-1/2″ shaft (3″ between the bearings), double row bearings with an engineered life of over 2 years at 200 HP, larger impellers and heavier frames. The Magnum allowed drilling contractors to upgrade their centrifugal pumps and mix heavier fluids.

The National Oilwell Varco” Mission centrifugal pump line has proven to be the best centrifugal design for handling abrasive mud. This pump line offers a broad selection of innovative features for a variety of routine, demanding, abrasive and corrosive applications. These pumps are designed for a wide range of flow rates, from a few gallons per minute to thousands of gallons per minute.

Each pump contains the finest materials, engineering and craftsmanship available in the industry. Described are like features of these pump lines and unique features are described on the following pages.

National Oilwell Varco utilizes unique design features developed for slurries. Three major differences from most pump designs include the concentric casing, wider impellers and increased re-circulation areas. Each feature contributes to reducing wear when handling abrasive fluids.

All of the pumps feature a concentric casing. This casing averages 37% thicker than conventional pump casings, and up to 50% thicker for the larger, mud pumping models. They are pressure rated at 1 .5 times the flange rating and are designed with a 1 /8″ erosion allowance. The concentric style casing has proven to offer the greatest pump life and reduced downtime. The walls of a concentric style casing are an equal distance from the impeller throughout the impeller circumference, which results in a smooth flow pattern. A volute style casing has a cutwater point that disturbs the fluid flow pattern creating an eddy. The concentric casing eliminates vibration, turbulence and aeration that is caused by the cutwater point in conventional volute pumps. It also reduces the high bearing loads and shaft deflection even at near shutoff flows.

The shaft is much larger in diameter than conventional pump shafts for heavy-duty performance, minimum deflection and increased operating life of the seal or packing. With a 2-1/2″ diameter at the seal area and 3″ diameter between the bearings these pumps can be direct connected or belt driven.

The shaft area under the packing is protected by a replaceable, hook type sleeve with one end free to expand with temperature variation. This sleeve can be replaced in the field without shaft removal.

For hundreds of years, packing has been used to minimize leakage from pumps and rotating equipment. As rotating equipment has evolved, however, so has the need to minimize that leakage even further.

Without some sort of sealing mechanism, process fluid easily leaks out of pumps through the gap surrounding the shaft as it enters the pump housing. For years, pump packing has been used to reduce leakage and minimize the space or clearance between the shaft and pump housing.

There are perks to both mechanical seals and pump packing, so which is right for the application at hand? In this post, we’ll discuss the pros and cons of each.

Compression packing is cut to length, formed in rings, and installed in the pump’s stuffing box. The rings are mechanically compressed to reduce leakage.

When the pump is running, liquid enters the stuffing box under hydraulic pressure. The liquid flows under the packing rings and eventually makes its way out of the packing gland. If the packing leaks too much, it can be tightened by the operator or mechanic. Note that the packing’s job is to reduce leakage. Not prevent it entirely.

Pump packing is an inexpensive method of sealing pumps and installs easily. Operators and maintenance teams must determine, however, if these benefits outweigh the disadvantages of packing.

Over time, packing wears and loses material causing it to leak more than desired. A mechanic or operator must tighten the packing gland again. Adjustments are made frequently and have no set degree of tightening.

Because of this, mistakes are easily made and packing glands are often over-tightened. Over-tightened packing glands oftentimes shorten packing life as the packing overheats and rapidly deteriorates.

Improper packing of the stuffing box can cause rotating equipment to consume more power than mechanically sealed equipment as it works to overcome the friction imparted by packing. Learn more about packing installation in our post "Terms You Need To Know For Packing Installation in Centrifugal Pumps".

Packed pumps and rotating equipment require more maintenance resources as well. This equipment is down more often than mechanically-sealed equipment due to corrosion problems, bearing failures, and shaft sleeve replacements.

Though the packing itself is less expensive than mechanical seals initially, there are other costs associated with this sealing method. Those costs include housekeeping, product loss, and additional power consumption.

Alternatively, mechanical sealing methods can provide many benefits over pump packing. There are many options for mechanical sealing. Single seals are the most common.

Mechanical seals consist of two flat surfaces (materials could include tungsten carbide, silicon carbide, or carbon graphite) compressed by a spring against each other. Just like packing, mechanical seals also require a small amount of leakage. However, the leakage is small, or not noticeable at all.

The pumped product generates a light film of fluid between the seal faces. The film prevents the faces from touching, lubricating them, and absorbing the heat generated from the associated friction. The fluid crosses the seal face as a liquid, then vaporizes into the atmosphere. Single mechanical seals are common practice when the pumped product poses little to no risk to the environment.

Like pump packing, the mechanical seal does leak. But unlike pump packing, in many applications the leakage is so small it’s practically invisible. This means there’s no mess on the floor to cause potential safety hazards. With less leakage, there’s less product loss.

Although mechanical seals require a higher initial dollar investment, when properly applied, they can run for over 10 years without failure or adjustment. When considering the cost of replacing and maintaining packing, installing a mechanical seal will cost less than pump packing over the lifetime of the equipment.

The biggest advantage to mechanical seals over pump packing is the minimal amount of maintenance. Packing requires frequent adjustment and replacement, not to mention the upkeep that comes with constant leaking.

On the flip side, the upfront cost is substantially higher for a mechanical seal over braided packing or other types of packing. Teams must decide for themselves if the maintenance required to properly care for packed rotating equipment is sustainable.

If it’s decided to look into replacing packing with mechanical seals, get an engineer involved to help select the right seal for the application. Seals can be expensive and with hundreds of options to choose from, it’s best to lean on the expertise of someone who frequently selects them.

Lake Petro provides high quality Mud Pump Parts including Mud Pump Liners, Mud Pump Fluid End Module, piston, Valve and Seat etc. With more than 10 years of experience in the oil and gas industry, we are dedicated to help and support our loyal clients with the most cost-effective and quality Liners and Pistons. We also provide mud pump price and mud pump for sale.

We offer Liners with Ceramic (Zirconia and Aluminium oxide) and Steel (Metal and Bi-metal) materials for all common brands of the mud pump and triplex mud pump.

Seal Rings for Liner packing are also important. Liner Seal Rings is designed and made with hard corner which is an integral part of seal rings and soft nitrile element rubber center. We could provide reliable liner Seal Rings for our customers could order them at the same time.

All Lake Petro liner products are interchangeable with O.E.M. products. Meanwhile, we provide customized Liners according to drawings. Our liners, also with our other mud pump spares, are supplied for use in Honghua, F-Series, Bomco, Emsco and National lines of triplex drilling pumps. Let Lake Petro be your one-stop shop for your whole fleet of pumps. Please refer to “Suitable Pump Models” Lable for more details.