Flowway Corporation Vatva, Ahmedabad, Gujarat

Features For plain shafts Single seal Unbalanced Wave spring or multiple springs rotating Independent of direction of rotation Variant With PTFE secondary seals for high chemical resistance Operating Range Shaft diameter: d1 = 14 ... 100 mm Pressure: p1 = 20 bar Temperature: t = -40 °C to +200 °C Sliding velocity: vg = 20 m/s   Advantages Universal application opportunities Efficient stock keeping due to easily interchangeable faces Extended selection of materials Insensitive to low solids contents Flexibility in torque transmissions Self cleaning effect Pumping screw for media with higher viscosity Short Installation Length Possible (G16) Recommended applications Process industry Chemical industry Pulp and paper industry Water and waste water technology Lube oils Low solids content media Water / sewage water pumps Chemical standard pumps Vertical screw pumps Gear wheel feed pumps Multistage pumps (drive side) Circulation of printing colors with 2 viscosity500 ... 15,000 mm /s.

Seal face: Silicon carbide, Carbon, Tungsten carbide,Secondary seals: FKM, EPDM, FFKM, PTFE,Shaft diameter: d1 = 25 ... 100 mm (Other sizes on request),Temperature: t = -20 °C ... 200 °C (Check O-Ring resistance),Sliding face material combination SicSic or TcSic .

Functional description This system performs all the basic functions of a buffer/barrier system for the operation of double seals: to pressurize the buffer chamber leakage compensation buffer/barrier fluid is circulated by external circulation system to cool the seal to selectively absorb product leakage and prevent dry running (tandem arrangement) Use compressed air or nitrogen for pressurization.   Features With the Flowway thermosiphon system it is possible to supply buffer/barrier fluid to double and tandem mechanical seals for a broad range of applications. The range is available in 2 different pressure levels with dished heads, sight-glass for level monitoring and with or without cooling coil. TS vessels are equipped as standard with all the necessary system connections and brackets. The modular system allows the vessels to be combined with a wide range of system components such as, level switch, circulation pump, hand refill pump, thermometer, base frame, etc. Recommended applications Chemical industry Petrochemical industry Oil and gas industry Refining technology   Advantages Modular system: combination with a wide range of system components possible Vessel made of stainless steel / borosilicate sight-glasses: suitable for universal applications Available with or without cooling coil Sockets with recessed gasket: no contamination of the circuit by thread sealant

Features Fully split single seal, 2 x 2 segments, pre-assembled Semi-cartridge Balanced Stationary springs Bi-directional External pressurization Built-in flushing connections Installation and wear control Operating Range Shaft diameter:d1 = 50 … 150 mm Pressure: p1 = 12 bar Temperature:t = -20 ... +130 °C ,(above 80 °C flush is recommended) Sliding velocity: vg = 10 m/s   Advantages Reduced repair and downtime: 2 x 2 pre-assembled design speeds up and simplifies installation installation because pump does not have to be disassembled. Long service life: precise pre-alignment because of pre-assembled segments. Stationary springs which are protected from the product prevent clogging. Greater flexibility during installation: no modification necessary because the seal is located outside of the stuffing box. Shaft protection: uniform torque transmission via clamping ring prevents damage caused by set screws. Recommended applications Process industry Chemical industry and Petrochemical industry Power plant technology Pulp and paper industry Centrifugal pumps and Displacement pumps Agitators Conveying pulp with stock pumps Conveying timber to refiners with pumping screws Circulation of pulp-and-water mixtures in storage vessels Pump stations for waste water treatment Cooling water pumps for energy generation

Shaft diameter: d1 = 25 ... 100 mm(Check O-Ring resistance)Sliding face material combination CarSic ,Sliding face material combination SicSic or TcSic ,Sliding velocity: vg = 10 ms

Features For plain shafts Available in single seal and dual seal Elastomer bellows rotating Unbalanced Independent of direction of rotation No torsion on bellows Advantages Shaft protection over entire seal length Protection of seal face during installation due to special bellows design Insensitive to shaft deflections due to large axial movement ability Universal application opportunities High flexibility due to wide offer on materials Dimension adaptions and additional seats available Suitable for low-end sterile applications Recommended applications Process industry Chemical industry Pulp and paper industry Water and waste water technology Food and beverage industry Sugar industry Slurries (up to 5 % by weight) Pulp (up to 4 % otro) Latex Dairies, beverages Sulfide slurries Oil applications Chemical standard pumps Circulating pumps Submersible pumps Pressure: p1 = 14 bar Temperature: t = -20 °C … +140 °C Sliding velocity: vg = 12 m/s

Shaft Diameter : d1 = 10 … 100 mm

Pressure : p1 = 14 bar

Features Unbalanced Available in single seal and dual seal For plain shaft Rotating multiple spring Independent of direction of rotation Advantages Flexibility in torque transmission Optimized, narrow width seal face design Compact axial and radial dimensions Recommended applications Process industry Chemical industry Acids Alkaline solution Salt solution Hydrocarbon Process pump Water and sea water Low viscosity oil

Secondary Seal : VITON,PTFE, GFT, TTV, EPDM, NBR (O-ring will be used for clean media application and wedges be used for corrosive media application )

Features For unstepped shafts Single Seal Balanced Independent of direction of rotation Metal bellows rotating Operating Range Shaft diameter:d1 = 16 … 150 mm Externally pressurized:: p1 = 12 bar Internally pressurized: p1

Features Available in single seal and dual seal Cartridge unit Independent of direction of rotation Rotating multiple springs Operating Range Shaft diameter:d1 = 20 … 110 mm Pressure: p1 = 35 bar Temperature:t = -20 °C ... +200 °C Sliding velocity: vg = 20 m/sOther Sizes on request   Advantages "Low-Emission-Seal" acc. to the American STLE-limits Universally applicable both for retrofits or original equipment Efficient stock-keeping due to standardized components Extended selection of materials Extended field of operation in terms of temperature and pressure Metal parts also in special materials available Recommended applications Process industry Oil and gas industry Refining technology Petrochemical industry Power plant technology Light hydrocarbons Hot water Process pumps

Features For top entry drives, on request side drive possible Dry-running Available in single seal and dual seals Balanced Outboard Multiple springs rotating Independent of direction of rotation Operating Range Shaft diameter: d1 = 25 ... 160 mm Pressure: p1 = vacuum ... 6 bar Temperature: t = -30 °C ... +140 (250) °C Sliding velocity: vg = 2 m/s   Advantages Available as components or as cartridge units Suitable for pressure reversals Due to the hydraulic conditions, product pressure as well overlaying barrier pressure closes the seal Friction-locked connection to the shaft Recommended applications Chemical industry Pharmaceutical industry Food and beverage industry Non-toxic media with single seal Toxic media with double seal Agitators Reactors

Features For plain shafts Single seal Unbalanced Rotating conical spring Dependent on direction of rotation Operating Range Shaft diameter: d1 = upto 80 mm Pressure: p1 = 12 bar Temperature: t = -20 °C to +140 °C Sliding velocity: vg = 15 m/s   Advantages Universal application opportunities Insensitive to low solids contents No damage of the shaft by set screws Large choice of materials Short installation lengths possible (G16) Variants with shrink-fitted seal face available Recommended applications Chemical industry Pulp and paper industry Water and waste water technology Building services industry Food and beverage industry Sugar industry Low solids content media Water and sewage water pumps Submersible pumps Chemical standard pumps Eccentric screw pumps Cooling water pumps Basic Sterile applications

Seal face: Special cast steel, Silicon carbide , Ceramic,Seat: Carbon, Silicon carbide*, Ceramic, Special steel.Secondary seals: EPDM, NBR, FKM, FFKM, PTFE.For plain shafts,Unbalanced

Features Single seal Balanced Cartridge seal Independent of direction of rotation Single seals without connections, with flush and with quench combined with lip seal or throttle ring Operating Range Shaft diameter: d1 = 25 ... 100 mm(Other sizes on request) Temperature: t = -20 °C ... 200 °C(Check O-Ring resistance) Sliding face material combination Car/Sic Pressure: p1 = 25 bar Sliding velocity: vg = 14 m/s Sliding face material combination Sic/Sic or Tc/Sic Pressure: p1 = 12 bar Sliding velocity: vg = 10 m/s   Advantages Ideal seal for standardization Universal applicable for packing conversions, retrofits or original equipment No dimensional modification of the seal chamber (centrifugal pumps) necessary, small radial installation height No damage of the shaft by dynamically loaded O-Ring Extended service life Easy installation due to pre-assembled unit Individual adaptation to pump design possible Customer specific versions available Recommended applications Refining technology Petrochemical industry Chemical industry Pharmaceutical industry Food and beverage industry Non-toxic media with single seal Toxic media with double seal Agitators Reactors

Seal face: Silicon carbide, Carbon, Tungsten carbide,Seat: Silicon carbide,Secondary seals: FKM, EPDM, FFKM, PTFE,Single seal,Balanced Cartridge seal,Independent of direction of rotation,Single seals without connections, with flush and with quench combined with lip seal or throttle ring

Materials According to application and customer's specification. Features For top entry drives Available in single seal and dual seals Unbalanced Independent of direction of rotation Multiple springs rotating Outboard Liquid-lubricated Cartridge unit Operating Range Shaft diameter: d3 = 40 ... 220 mm Single Seals:Pressure:p1 = Vacuum ... 6 bar , p3 = Pressure lessTemperature: t1* = -30 °C ... +150 (250) °C Double Seals: Pressure: p1 = Vacuum ... 16 bar, p3 = max. 18 barTemperature: t1* = -30 °C ... +200 (350) °C Sliding velocity: vg = 0...5 m/s For applications beyond this range, please inquire. * Higher or lower temperatures on request   Advantages Ready-to-fit and factory-tested units Available with or without floating bearing Suitable for standardizations Double seals can be applied at higher pressure and rotating speed. Due to the hydraulic conditions, product pressure as well overlaying barrier pressure closes the seal Recommended applications Refining technology Petrochemical industry Chemical industry Pharmaceutical industry Food and beverage industry Non-toxic media with single seal Toxic media with double seal Agitators