Series AI 50U & AI 55U are spring units developed for universal application. This compact design permits their use in all types of centrifugal pumps. Torque transmission from retainer shell to seal ring is done through drive lugs. All components are held together by a snap ring which helps in easier installation and removal. As all parts are interchangeable, one can convert series AI 50U & AI 55U by changing only the seal ring and the secondary seal. This concept is ideal for shock rationalization.

Series ASS O & ASS U are single helical coil spring, bi-directional seals developed for dirty media and clogging type applications. Torque transmission from drive collar to spring holder and seal rings is done through sturdy drive lugs. The PTFE double V-packing are spring energised to give perfect dynamic sealing. As all parts are interchangeable, one can convert Series ASS O & ASS U by changing only secondary seal. This concept is ideal for stock rationalisation.

Series RBS & RBS L are single coil springs with elastomeric bellows for water, Oil and light duties. This seal has self aligning feature which compensate abnormal shaft end play and run out, which leads to improved service life. Elastomeric bellow protect shaft and sleeve from fretting. Drive to the seal faces is given through notches-provided on retainer. Seal can be repaired in field with minimum spares minimizing the down time cost.

Series ASRB is multiple spring externally mounted reverse balanced seal with O-ring as secondary sealing member. Various seal face materials and elastomers can be offered for wide service application. This seal can also be used for corrosive services as the metallic components do not come in contact with liquid to be sealed. This seal can also install in double back to back arrangement as a internal seal. Even if barrier fluid pressure goes down this seal will not allow process fluid to mix with barrier fluid. Hence is called reverse balanced seal.

Series MB 00 & MB 05 are welded metal bellow seals used in chemical, petrochemical and refinery process pumps for moderate temperature / pressure application and for process services requiring corrosion resistance. These bellow seals are constructed by welding a series of diaphragms together at the edges to form a bellows unit. The bellows unit eliminates the need for springs, dynamic secondary seal and provides flexibility to the seal face in addition to compensating for seal face wear.

Series RDRY-C is factory assembled & dynamically tested seal for steel, glass lined and SS mixers, agitator & vessels. This is a multiple spring externally mounted, reverse balanced seal with O-ring as secondary sealing member. Various elastomers can be offered for wide service application. These seals are basically used on top entry agitators as dry running seals. When food products or pharmaceutical products are agitated in agitator, mixing of any other liquid will contaminate the product & affect its quality, hence these dry running seals are used. These seals don't require any external media for lubricating the faces, that is why they are known as dry running seals.

Series RWET-C are factory assembled & dynamically tested cartridge units for steel, glass lined, ss mixers, agitators & vessels. These are used with no pressurized barrier fluid preferably soft water because of its good heat transfer qualities. Fluids like oil, hydrocarbon, solvents etc. These can also be used as buffer fluid by considering the corrosion resistance of wetted parts & compatibility with main media to be sealed. These seals are supplied with cooling water jacket, which ensure cool running of seals.

Series RWET-C-DOUBLE & RWET-D.C.-DOUBLE are factory assembled and dynamically tested cartridge units for Steel, glass-lined and SS mixers, agitators and vessels. These are used with non pressurized barrier fluid preferably clean soft water because of its good heat transfer qualities. Fluids like oil, hydrocarbon, solvents etc. can also be used as buffer fluid by considering the corrosion resistance of the wetted parts and compatibility with main media to be sealed. These seals are supplied with cooling water jacket, which ensure cool running of the seals & with integral bearings which are closed to seals ensure optimum running and sealing conditions.

Tungsten carbide is widely used as seal faces with resistant-wearing, high fractural strength, high thermalconductivity, small heat expansion co-efficient. It is the best material to resist heat and fracture in all hard face materials.

TC physical property
Technical Parameter		Unit	YWN6	YWN8	YG6	YG8	DYNT60
Composition	WC	%	94	92	94	92
	Ni	%	6	8
	Co	%			6	8
Density		g/cm3	14.5~14.9	14.4~14.8	14.6~15	14.5~14.9	6.5~6.8
Hardness		HRA	88.5	88	89.5	89	90
Fractural Strength		MPa	1490	1470	1421	1470	1480
Heat Expansion Co-efficient		10-6/K	5.2	5.3	5	5.1	7.5

They have the property of excellent resistant-corrosion,high mechanical strength,high thermal conductivity,good self-lubrication used as seal faces, bearings and tubes in spacecraft, machinery, metallurgy, printing and dyeing, foodstuff, phamaceutical, auto industry and so on. When the sic faces are combined with graphite faces the friction is the smallest and they can be made into mechanical seals which are able to work in highest working requirements.

SiC physical property
Technical Parameter	Unit	SiC	SSiC
Hardness	HS	110	115
Porosity Rate	%	<0.3	<0.2
Density	g/cm3	3.00~3.05	>3.10
Compressive Strength	MPa	>2200	>2500
Fractural Strength	MPa	>350	>380
Coefficient of Heat Expansion	10-6/oC	4	4.2
Content of Sic	%	â	≥90	≥98
Free Si	%	≤10	≤1
Elastic Modulus	GPa	≥400	≥410
Temperature	oC	1300	1400

We are also manufacturing Carbon Seal Rings, Ceramic Seal Rings. Graphite has the good property of good resistant-corrosion, high thermal conductivity and lower friction,good self-lubrication, the smaller expansion.They can be made into the seal faces, bearings and so on. It is ideal to choose it as the frictional mating rings.

Graphite chemical property
Category		Model	Density	Fractural Strength	Compressive Strength(MPa)	Shaw Hardness	Porosity	Temperatures
			(g/cm3)	(MPa)		(HS)	(%)	(oC)
Carbon-graphite	Impregnated Epoxy Resin(H)	M106H	1.75	65	200	85	<1	250
		M120H	1.7	60	180	80	<1	250
	Impregnated Furan Resin(K)	M106K	1.75	67	200	90	<1	250
		M120H	1.7	62	180	85	<1	250
	Impregnated Phenol Aldehyde Resin(F)	M106F

We are Manufacturer of High Pressure Multistage Pumps, Filter Press Pumps, Boiler Feed High Head Self Priming Pumps, Corrosion Resistant Polypropylene Pumps, Centrifugal Coupled Pumps, Centrifugal Pumps, Chemical Pumps, Back pull-out Pumps, Boiler Feed Pumps, Process Pumps, Pumps & Pumping Self Priming Chemical Process Pumps, Fluid Transfer Pumps, Transfer Pumps, Thermic Fluid Pumps, Polypropylene Pumps, Acid Handling Pumps, Pressure Pumps, Industrial Pumps, Water Pumps, Vacuum Pumps, Portable Dewatering Pumps, Slurry Pumps, Non Clog Pumps, Effluent Pumps, Solid Handling Pumps, Waste Water Pumps, Investment Casting - Metallic Pumps, Non Metallic Pumps.