Packing is the material in the form of rings or strands that is placed in the stuffing box to form a seal to control the rate of leakage around the shaft. Its a easy seal and cheap than others, but when in daily use, there maybe face a problem, leakage from stuffing box. 5. A stuffing box for a sucker rod pump assembly is disclosed that utilizes natural convection currents generated in a lubricating fluid reservoir mounted on the housing of the stuffing box and in fluid communication with the interior of the housing to continuously displace the heated lubricating fluid in the interior of the housing with cooled lubricating fluid from the reservoir. The stuffing box prevents sea water from entering the boat's hull. In most of the pumps, and even in the ship’s propeller shaft , the stuffing box consists of a stack of packing rings or a short square cross sectional rope made of greased flax. It consists of: A) Five rings of packing, B) A lantern ring used for the injection of a lubricating and/or flushing liquid, and C) A gland to hold the packing and maintain the desired compression for a proper seal. In many small fiberglass boats, for example, the stuffing box is mounted inboard near the point the shaft exits the hull. In most cases, it is recommended that specifications leave open the exact details about the number of rings or the size or type of packing and allow the pump manufacturer to make recommendations based on application experience. It is important that the pump is designed properly to control the amount of liquid that leaks along the shaft at the point that the shaft penetrates the pump casing. A stuffing box separates the non-rotating parts from those that rotate. Single Pack Stuffing Box (SB) Original design; Superior and dependable performance; … Figure 3 8. 9. Inside the bore of the stuffing box houses gland packings and a lantern restrictor. The number of packing rings in the stuffing box, together with the size and type of packing vary by manufacturer. There are 179 pump stuffing box suppliers, mainly located in Asia. A stuffing box separates the non-rotating parts from those that rotate. Each ring should be installed separately and enter the stuffing box … The packed stuffing box is the simplest type of shaft seal, Figure 1D.. The purpose of this bushing is to prevent packing from extruding through the bottom of the stuffing box. And ensuring stuffing box reliability and controlling the pump environment can mitigate many reliability issues. As an economic option for your production needs, our classic stuffing box has a unique misaligning feature that reduces the need for exact alignment with the pumping unit. Pump Packing Application Data. Mission Pump Parts, 2223-01-30 641116157, Mission Pump Spare Parts manufacturer / supplier in China, offering Stuffing Box, Mech. 1. Stuffing box is a seal part used in slurry pumps, when pump with packing seal. The dipping of each ring in lubricating oil before installation will help the packing, and careful attention given to the first running of the pump will add to the life of the packing and prevent any necessity for constant adjustment of the gland. The Stuffing Box is a cylindrical space in the pump casing surrounding the shaft. When you hear stuffing it usually means stuffing for turkeys, it may also suggest some misconceptions about stuffing boxes for pumps. Pumps DOE-HDBK-1018/1-93 CENTRIFUGAL PUMPS Stuffing Box In almost all centrifugal pumps, the rotating shaft that drives the impeller penetrates the pressure boundary of the pump casing. DAC Worldwide’s Sucker Rod Pump Stuffing Box Assembly Replica (295-406) is an economical, lightweight, and faithfully-reproduced representation of a common production wellhead stuffing box. 2. REPLACE PACKING WHEN LEAKAGE CANNOT BE CONTROLLED BY FURTHER TAKE-UP ON THE FOLLOWING GLAND. It consists of a stuffing box cavity with a restrictive “throat” bushing at the pumpage end, several rings of packing, a hollow spacer or lantern ring, several more rings of packing and a follower or gland. Packed Stuffing Box. The Stuffing Box from our Weir Wellhead Independent Line offers a cost-effective solution and fits most applications, making it a standard in the oil and gas industry. The low profile features up to a 3 inch flex which reduces the need for exact alignment with the pumping unit. Rear covers (Stuffing Boxes) are available in standard bore and big bore, in CF8M and CD4MCuN, in STX and MTX series. A braided packing made of expanded pure graphite with textile fiber is normally used; … Packing is then held in place and compressed by the ‘Gland’ to give a give a leak-tight seal. When it comes to centrifugal slurry pump maintenance, a stuffing box is the best option for time-sensitive issues that may arise. It prevents leakage along the shaft that passes through a hole in the pump. A pump drive head for a progressing cavity pump comprises a top mounted stuffing box rotatably disposed around a compliantly mounted standpipe with a self or manually adjusting pressurization system for the stuffing box. Alibaba.com offers 179 pump stuffing box products. The material is closely packed or wound tightly around the propeller or pump shaft with threaded nut or spacer compressing it in place. Stuffing box seals are the most common type of pump rotor seals because they are adjustable and periodically restorable assemblies during operation. Stuffing box reliability is critical to the condition and performance of the whole fluid sealing program. The following stuffing box sealing methods can be used, up to the temperatures listed. You can also choose from mechanical seal, bellow seal. thread819-59312: stuffing box pressure calcs My query is regarding stuffing box pressure for multistage centrifugal pump for following cases: case a) BB2 (double suction pump) - Pressurized dual seal - Seal plan : 11-53B-61 case b) BB5 pump with balancing line - Pressurized dual seal - Seal plan : 11-53B-61 For above cases, The stuffing box is a comparably simple and extremely robust shaft seal for WITTE gear pumps. A wide variety of pump stuffing box options are available to you, such as rubber, silicone. It is a reliable option to hold your packing seals and shaft as well as keep your pumping system from leaking. Stuffing Box Arrangement. Shaft Sleeve Triangle Pump Components Inc. manufactures the TriVis® Stuffing Box Components for the majority of plunger pumps. This can be designed, if necessary, as a double seal with buffering medium. Would you like to learn how to centre the stuffing box on a Warman® centrifugal slurry pump in just two minutes? IF THE STUFFING BOX HAS A LANTERN RING (SEE ILLUSTRATION ABOVE), make sure that the lantern ring, as installed, is slightly behind the fluid inlet so that it will move under the inlet as follower pressure is applied. It is a reliable option to hold your packing seals and shaft as well as keep your pumping system from leaking. The "box" is a cylindrical assembly, typically of bronze, comprising a sleeve threaded on one end to accept adjusting and locking nuts. Before you solve this problem you need to find out what caused this. Rings of packing materials are used in the stuffing box space. A wide variety of stuffing box pump options are available to you, such as automotive industry, family homes, and water treatment solutions. The answer lies in … A stuffing box of a pump houses a gland that compresses the packing used to seal the pumped fluid. Here bellow we list some points […] 314 stuffing box pump products are offered for sale by suppliers on Alibaba.com, of which pumps accounts for 1%. About 20% of these are seals. B-4A Stuffing Box Packing A typical packed stuffing box arrangement is shown in Fig. The importance of knowing the proper cleaning and packing procedures becomes evident during a shutdown event when you need to keep your pump running efficiently. Stuffing Boxes . There are 25 suppliers who sells stuffing box pump on Alibaba.com, mainly located in Asia. The TriVis® Stuffing Box Component tolerances assure that the plunger will be in motion at the correct angle to reduce wear and maintain adequate pressures. 1) 250 2) With cold liquid to seal cage 2) 275 Water-cooled packed box 300* Standard or water-cooled packed box TriVis® Stuffing Box Components Proper alignment of the plunger is critical to an extended wear life and correct flow conditions. 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