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| Kinney SDV Dry Screw suppliers of vacuum pumps operate without any sealing liquid in the pumping chamber. Without metal-to-metal contact inside the pumping chamber, wear is greatly reduced. |
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KRAL pumps with magnetic coupling are hermetically tight, the pump station as well as the site itself stays clean. As magnetic couplings work without wear and maintenance-free, the life cycle costs are favourable comparative to conventional sealing systems.
Please consider that we are a manufacturer of high quality displacement pumps and flowmeters for liquids. The products (pumps with magnetic couplings, high pressure flowmeters and flowmeters – chemically resistant) mentioned on this portal are only part of our product range. Please find more detailed information on our website or directly from us. |
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The new generation Series K has been thoroughly reengineered. As the most sold universal pump series K offers a number of benefits.
The pump prevents the accumulation of residue forming fluids by locating the leakage hole before the manufacturers of ball bearing. Secondly, KRAL offers the advanced quality of SiC mechanical seals manufacturers, which contains graphite, as a solid lubricant to reduce the coefficient of friction in dry running conditions. The O rings with high fluorine content are suitable for higher temperatures and are chemically stable. The Series K offers innovative seal concepts. A proven selection of radial rotary rod seals, mechanical professional seals and a hermetically sealed magnetic coupling are available as standard. A robust and compact design rounds off the profile.
Your advantages:
- No coupling damage through well placed leakage hole.
- Safety reserve in dry running.
- Low maintenance operation.
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The Marine Screw spindle pumps are positive displacement rotary type pumps. The main working parts of the pumps are three helical suppliers of spindles and the pumping housing. The helical spindles or screws can be compared with a gear having a very long, curved tooth, or with a piston pump manufacturers with an indefinite numbers of pistons.
Technical data:
CapacityUp to 3300 l/min
HeadUp to 80 bar
Viscosity12 - 800 cst
TemperatureCast Iron up to 180°C
Steel case up to 260°C
Advantages:
The pumped medium is transported axially without turbulence and mixing, thus making possible pumping of very viscous fluids without foaming. The working volume of the pump remains unchanged and moves from the suction to the discharge chamber, ensuring in this way a continuous rate of discharge. Noiseless operation, long service life and high overall efficiency.
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KRAL screw professional spindle pumps are rotating volumetric pumps, in 3 spindle design, which deliver fuel extremely careful and noiseless. Even at alternate operating conditions KRAL screw spindle pumps deliver with a high efficiency.
KRAL screw spindle pumps are also available as a supply module according to your specifications wit complete pipe worked of all professional fittings, ready for connection.
Please consider that we are a manufacturer of high quality displacement pumps and flowmeters for liquids. The products (pumps with magnetic couplers, high pressure flowmeters and flowmeters – chemically resistant) mentioned on this portal are only part of our product range. Please find more detailed information on our website or directly from us. |
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No more problems with mechanical seals:
Compared to mechanical professional seals the magnetic coupling is hermetically tight.
Magnetic joints can be used up to 250°C. A mechanical seal can only be used up to 150°C.
More benefits:
Beware engine failures.
Reduced lifecycle-costs – long life cycle.
The hermetically sealed magnetic coupling prevents pump failures, caused by fuel residues.
No required lubrication as at mechanical seals. Dry running is not possible.
Leakage free and clean. Benefits for all, which commit to Greenship Technology.
Guarantee on-board safety. (SOLAS – “Safe of Life at Sea”)
Overload protection.
Maintenance-free.
Please consider that we are a manufacturer of high quality displacement pumps and flowmeters for liquids. The products (pumps with magnetic couplings, high pressure flowmeters and flowmeters – chemically resistant) mentioned on this portal are only part of our product range. Please find more detailed information on our website or directly from us. |
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No more problems with air contact:
Hermetically sealed KRAL pumps with magnetic coupling offers maintenance-free operation, high operational safety, long life cycle and broad reduced costs.
Please consider that we are a manufacturer of high quality displacement pumps and flowmeters for liquids. The products (pumps with magnetic couplers, high pressure flowmeters and flowmeters – chemically resistant) mentioned on this portal are only part of our product range. Please find more detailed information on our website or directly from us. |
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TWISTER VSB
Single-stage screw suppliers of vacuum pumps
- Dry running according to the screw principle
- Low running temperature due to the precision graduation of the screw pitch
- Easy to service
- Corrosion-resistant configuration by different coating versions
Range Technical Overview :
Capacity 80-500 m³/hr at 50 Hz and 100-650 m³/hr (59-383 cfm) at 60 Hz, Continuous vacuum upto 0.05 mbar (abs.) / 29.92 in.HgV
Possible Applications :
Process Technology |
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Positive displacement pump with three profiled supplier of spindles that realize thei movement into the speical bushing.Built in overflow safety faucet with a purpose-protection against too high pressure. It is characterized with quite and noiseless work, flow without pulsation and high efficiency.
Available materials: Cast Iron( Gray,Ductile), cast steel, SS(AISI 304, 316), Duplex SS, Super duplex ss, bronze , Al, other on request.
Main advantages compared to other volumetric pumps:
- Pumps are made in horizontal and vertical accomplishment with adequate professional fitting flanges in horizontal or vertical position;
- Working spindles are totally hydraulically disburdened of axial forces. Fluid is moving axially without turbulence and mixing which enables pumping of a lot of viscous fluids without making foam;
- Working volume remains constant and moves from suction to the discharhe chamber,with what continuous flow can be accomplished;
- Overflow of fluid in case of overburden is made in the suction chamber of the pumping or in the tank;
-Noiseless work, long service lifetime and high coefficient of utilization.
Capacity Up to 300 m3/h
Head Up to 80 bar
Viscosity 12 - 800 cst
Temperature Cast Iron up to 180°C
Steel case Up to 260°C
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| The Triro pump is of the positive displacement axial flow screw type with only three moving parts - a power rotor and two idler rotors. These three rotors (hence the brand name TRIRO) have accurately machined intermeshing threads which enfold the liquid being pumped and act as professional seals in relation to each other and to the pump body or sleeve in which they rotate. |
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The Twinro 2 bolt pump is a heavy duty, fixed flow transfer unit. It is available in either Iron, Steel or Stainless Steel constructions to suit a variety of duties. The design of the screwset means the screws intermesh without metalic contact, making the pump suitable for non-lubricating duties. The pump is available in two configurations :
Outboard industrial bearing pumps suitable for non-lubricating liquids, such as Petroleum Liquids, Palm Oils, Fatty Acids and Water Emulsions.
Inboard bearing pumps suitable for lubricating liquids, such as Lube Oils, and clean Fuel Oils. |
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| ... products without technical information |
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Screw compressors for the refrigeration industry VMY, VARISCREW an VARISCREW+
oil-injected screw compressor manufacturers stages in 3 types on construction of different design with a total of 20 sizes. Suction volume 233 m³/h - 9.900 m³/h |
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The supply range of Grasso screw compressors manufacturers comprises 30 types, subdivided into 4 series (SH, MC, LT and C) which differ from each other in the volume flow ranges and in the degree of integrating functional components of the package into the compressor housing. Further advantages for our customers are: patented rotor profile, gas pulsation protection, Vi-control in full and part load operation and a design to ensure easy maintenance.
Grasso now has one of the most extensive and comprehensive range of screw suppliers of compressors (Grasso SC) providing uniform steps of capacity with 30 different sizes.
Grasso screw compressor packages are available in single (Grasso SP1) or two-stage (Grasso SP2) versions and as DuoPack executions (Grasso SPduo). |
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Overview of HSO Open type compressors supplier
Models available
HSO 3200 4 sizes: 3216, 3218, 3220 & 3221
Displacement at 50Hz: 286/343/415/469 m3/h
HSO 4200 4 sizes: 4221, 4222, 4223 & 4224
Displacement at 50Hz: 508/616/722/808 m3/h
HSO 2000 4 sizes: 2024, 2028, 2031 & 2035
Displacement at 50Hz: 853/1273/1728/2486 m3/h
Designed for refrigeration, air conditoning and heat pump applications
-Applied to single stage and multi stage systems
-For use with R717 (Ammonia), normal refrigerant and many other process gasses
-Oil injected for maximum reliability
-Can be industrial inverter controlled
Comprises of the following:
-Open drive single screw design
-Suitable for all refrigerants including ammonia
-Stepless capacity control
-Oil industrial drain connection
-2 built in electrovalves (HSO 3200 & HSO 4200)
-Oil injection connection
-Universal shaft gasket (suitable for all refrigerants)
-Economiser connection
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The supply range of Grasso screw compressors comprises 30 types, subdivided into 4 series (SH, MC, LT and C) which differ from each other in the volume flow ranges and in the degree of integrating functional components of the package into the compressor housing. Further advantages for our customers are: patented rotor profile, gas pulsation protection, Vi-control in full and part load operation and a design to ensure easy maintenance.
Grasso now has one of the most extensive and comprehensive range of screw supplier of compressors (Grasso SC) providing uniform steps of capacity with 30 different sizes.
Grasso screw compressor packages are available in single (Grasso SP1) or two-stage (Grasso SP2) versions and as DuoPack executions (Grasso SPduo). |
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Overview of HSS Semi-hermetic manufacturer of compressors
Models available
HSS 3100 5 sizes: 3118, 3120, 3122 & 3123
Displacement at 50Hz: 175/213/250/292/336 m3/h
HSS 3200 4 sizes: 3216, 3218, 3220 & 3221
Displacement at 50Hz: 286/343/415/469 m3/h
HSS 4200 4 sizes: 4221, 4222, 4223 & 4224
Displacement at 50Hz: 508/616/722/808 m3/h
Designed for high temperature applications
-Designed for incorporation into factory built chillers
-Designed for compressor packs using HFC refrigerants or R22
-Capable of operating without cooling over a limited range
-Can be industrial inverter controlled
Comprises of the following:
-Semi-hermetic single screw design
-Optimised for R134a, R407c & R22
-Suction strainer
-Stepless capacity control system (2 built in coil valves)
-Discharge stop cock
-Internal relief valve
-Integral grease separator (HSS 3100 & HSS 3200)
-Flanged oil industrial separator (HSS 4200)
-Discharge check tap
-Suction flange with tail & joint
-Liquid injection adapter
-Sight glass (x2)
-Oil charge
-2 pole electric motor with sensor protection
-Electronic protection (INT 69TM)
-Economiser connection
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