calcined silicon carbide mechanical seal problems

The Trouble With Silicon Carbide | Pumps & Systems

Dec 17, 2011· Traditionally, pump manufacturers used SiC (silicon carbide) for bushings and bearings in these pumps because of its high hardness and ability to withstand abrasive wear in solid media. Since the early 1980s, OEM pump manufacturers have been using sintered SiC bearings for the stationary and rotating components of tubular casing pumps.

Failure Analysis of Faces | Seal FAQs

Heat checking can also occur when the seal chaer is full of gas — the seal starts up dry, gets very hot and then is suddenly hit with liquid. Hard faces such as Stellite, alumina (ceramic) and tungsten carbide are subject to heat checking. Silicon carbide faces can show heat checking but this is somewhat rare.

Silicon carbide Mechanical Seal Stationary Faces

Flat Seal Faces Seal Pumps. Every mechanical seal needs a stationary to complete it. Silicon Carbide seal faces are an exceptional choice for several reasons. 1) They are hard. Which makes them idea for abrasive appliions which wears out other seal face materials prematurely.

Shaft Seal Carbide Viton - PumpBiz

Shaft Seal Silicon Carbide Viton. Pump parts, Mechanical seal assely, Viton, SiC/ceramic. For shaft. For AMT pumps 4210-xx, 393x, 394x 426x, 425x, 315x. Viton Elastomer, Stainless Steel Shell, Silicon Carbide Seat 4P974 . Some WVO processors prefer the softer carbon seal in place of SiC hard seals in transfer appliions of vegi oil.

Lapmaster offers a complete line of lapping abrasives

Other customers have reported more scratching problems when using calcined material. This simply points out the fact that every appliion is different and must be evaluated on its own merits. Silicon Carbide. Silicon Carbide (SiC) is typically used for general stock removal and the removal of machining marks on a variety of materials.

What are the challenges with sealing water appliions

Dec 17, 2011· Mechanical seal manufacturers can address the root cause by selecting seal face materials with similar electrical conductivities. As noted in the flashing discussion, it is desirable to apply a carbon-graphite material mated with a hard face material (typically silicon carbide) in high temperature water appliions.

Calcined Petroleum Coke Manufacturers in China for Casting

It can greatly reduce the amount of pig iron, reduce the casting cost, improve the mechanical properties of the product. Our products are calcined in high temperature so that the graphite distribution in the casting is refined and uniform The particle size is moderate, the porosity is large and the absorption speed is fast

6 REASONS WHY MECHANICAL SEALS FAIL - mechanical seal

Mar 06, 2018· Pump vibration is caused by mechanical seals , improper alignment, operating the pump too far to the right or left of the BEP (Best Efficiency Point) on the , etc. Vibration hurts your equipment and can result in damaged seals and shortened seal life.

China Mechanical Silicon Carbide Seal Ring for Water Pump

Mechanical Silicon Carbide Seal Ring For Water Pump Mechanical Silicon Carbide Seal Ring For Water Pump Features. 1. High Temperature resistance, SiSiC can withstand 1380C, SSiC can withstand 1600C at most. 2. High strength and excellent hardness. 3. Good Corrosion and Oxidization resistance. 4. Tight tolerance and good surface roughness.

Mechanical Seal Manufacturer | Mechanical Seal Types

Sizes: up to 6” diameter Face Materials: Carbon, Bronze, Silicon Carbide, Tungsten Carbide Secondary Sealing: Metal Bellows, O-ring, Spring, Piston Ring, Speeds: up to 50k ft/min (254 m/s) Temps:-104°F to 1000°F (-54°C to 537°C) Fluids: air, oil, oil mist, abrasive, corrosive and clogging media Pressures: 1.5 PSIA to 1000 PSID (10.3kPa to 689 kPa)

Face Materials | Types of Mechanical Seal Faces

Tungsten Carbide - A very versatile seal face like Silicon Carbide. It is very hard like silicon carbide however it is very heavy to the touch, making it easy to distinguish from silicon carbide. Ideal for high pressure appliions due to a high modulus of …

Laser-machining silicon carbide seal faces helps them

Aug 01, 2009· The new concept used a coination of Precision Face Topography and PZ Technology. To ensure an identical electrical conductivity of the seal faces, both seal faces were made of high-quality silicon carbide. Download : Download full-size image; Figure 7. The DHTW-5750 mechanical seal arrangement tested in the case study.

Mechanical Seal Faces | STB GH

Mechanical Seal Faces We are an established supplier of mechanical seal faces in series production and also for individual appliions.In our range of materials we offer you mechanical seal faces of the highest quality and in all designs. Types Synthetic resin infused carbon seal facesAntimony infused carbon seal facesSilicon carbide seal faces (SiC)Tungsten carbide seal …

PRECISION MATERIALS PROCESSING TECHNOLOGIES …

0CON-013 30 5 kg Used for coarser lapping of components such as mechanical seals, or with semiconductor and optical materials where high stock removal rates are required. Code Micron Size Pack Size Description CALCINED ALUMINIUM OXIDE LAPPING POWDERS SILICON CARBIDE POWDERS

The Top 5 Things Mechanical Seal Users Need to Know

Feb 12, 2018· If mechanical seal users keep my “top 5” in mind, they will avoid many of the problems I have been hearing about for 25 years. 1. Mechanical Seals Need Lubriion and Parallel Faces. A mechanical seal is mysterious to most users, but its design is very simple. It consists of two parallel faces sliding past each other.

SILICON CARBIDE HAZARD SUMMARY WORKPLACE …

* On skin contact with Silicon Carbide, immediately wash or shower to remove the chemical. At the end of the workshift, wash any areas of the body that may have contacted Silicon Carbide, whether or not known skin contact has occurred. * Do not eat, smoke, or drink where Silicon Carbide is handled, processed, or stored, since the chemical can be

Silicon Carbide Vs Tungsten Carbide Mechanical Seal

Silicon carbide mechanical seal is a kind of silicon carbide product produced with silicon carbide material. Silicon carbide mechanical seal has heat resistance, according to different process, the performance of heat resistance is not the same. The reaction-sintered silicon carbide seal ring can be used at 1300, while the pressure-free

Trouble Shooting & Failure Analysis

Problems with Secondary Seals O-Rings, Bellows •Cuts • Overheated • Compatibility with process. CRACKED SEAL FACE Thermal shock Mechanical shock or impact Avoid uneven or over tightening of Seal was unable to flex and failed. Silicon Adhesive Drive tabs locked .

Extend mechanical seal reliability and life

3D analysis and photographic image of the seal face surface reveals no damage to the diamond-coated silicon carbide (right) after more than 4,000 hours of operation in hot water. The pitting damage on the uncoated silicon carbide face (left) was evident after just 200 hours under the same conditions. Coefficient of Friction in Deionized Water 0.12

The Top 5 Things Mechanical Seal Users Need to Know

Feb 12, 2018· 3. Seal Failure Is Usually An Indiion of Problems Other Than The Mechanical Seal. If all conditions of No. 1 and No. 2 are met, a mechanical seal will not fail but will only need to be replaced due to normal wear. If a seal fails prematurely, it is because it was robbed of lubriion or the face parallelism was upset.

Problem Solvers - Self Priming

Carbon vs. silicon carbide mechanical seal. Reliance 10 HP, 1750 RPM, explosion-proof motor with non-sparking non-reverse ratchet mechanism. Problem. Solution. Transfer waste water with chlorides from chemical dyes (for yarn coloring) at rate of 1000 GPM @ 45 FT TH (including 20 feet suction lift).

Lapmaster offers a complete line of lapping abrasives

Other customers have reported more scratching problems when using calcined material. This simply points out the fact that every appliion is different and must be evaluated on its own merits. Silicon Carbide. Silicon Carbide (SiC) is typically used for general stock removal and the removal of machining marks on a variety of materials.

Silicon Carbide Vs Tungsten Carbide Mechanical Seal

Silicon carbide mechanical seal is a kind of silicon carbide product produced with silicon carbide material. Silicon carbide mechanical seal has heat resistance, according to different process, the performance of heat resistance is not the same. The reaction-sintered silicon carbide seal ring can be used at 1300, while the pressure-free

Silicon carbide Mechanical Seal Stationary Faces

Flat Seal Faces Seal Pumps. Every mechanical seal needs a stationary to complete it. Silicon Carbide seal faces are an exceptional choice for several reasons. 1) They are hard. Which makes them idea for abrasive appliions which wears out other seal face materials prematurely.

US20110121518A1 - Silicon carbide mechanical seal - Google

A SIC mechanical seal including a main body made of SIC materials. The main body includes a fixing portion and a pushed surface. The seal also includes a retainer including a shaft coupling seat, a push ring and an elastic part; of which the push ring is made of SIC material, and provided with a ring surface that''s riveted to the pushed surface of the main body.

What’s New For Hygienic Mechanical Seals

loaded silicon-carbide material that will reduce seal face wear, increase uptime, and offer twice the service length of competitive components. The PGS-100 material enhances seal face pressure-velocity characteristics beyond that of monolithic sintered silicon carbide, and the ensuing topography remains for the life of the product.

PRECISION MATERIALS PROCESSING TECHNOLOGIES …

0CON-013 30 5 kg Used for coarser lapping of components such as mechanical seals, or with semiconductor and optical materials where high stock removal rates are required. Code Micron Size Pack Size Description CALCINED ALUMINIUM OXIDE LAPPING POWDERS SILICON CARBIDE POWDERS