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  3. Product series AB, 341, 340, 351, 350, 391, 390, VR, 321, VN, 370, 361 product brochure

Product series AB, 341, 340, 351, 350, 391, 390, VR, 321, VN, 370, 361 product brochure

Product series AB, 341, 340, 351, 350, 391, 390, VR, 321, VN, 370, 361  product brochure
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Product series AB, 341, 340, 351, 350, 391, 390, VR, 321, VN, 370, 361 product brochure

Product catalog summary
Overview of SKF MonoFlex Single-Line Distributors
SKF MonoFlex single-line distributors are integral components in centralized lubrication systems, designed to distribute and meter lubricants like oil, fluid grease, and grease across various industrial applications. These distributors are categorized into three functional types: prelubrication, relubrication, and dynamic distributors, each serving specific lubrication needs.
Product Specifications
SKF MonoFlex distributors are available in 11 product series, supporting oils with viscosities from 20 to 2,000 mm²/s, fluid greases of NLGI Grade 000, 00, and 0, and greases up to NLGI Grade 2. They operate under pressures ranging from 8 to 315 bar, with relief pressures from 1 to 70 bar. Certain models offer stainless steel designs and corrosion-resistant certifications.
Functional Types
Prelubrication distributors deliver lubricant during pressure build-up, relubrication distributors supply lubricant after pressure relief, and dynamic distributors operate similarly to prelubrication types but are used in dynamic applications.
Applications
These distributors are suitable for industries such as machine tools, wind, print, textile, vehicle, and construction. They are not approved for use with gases or fluids with high vapor pressures.
Selection and Configuration
A selection table aids users in choosing the appropriate distributor based on lubricant type, distributor type, elastomer material, and metering points. Each product series includes specific technical data, configurators, and accessories.
Installation and Maintenance Guidelines
Proper installation of main lines and lubrication point lines is crucial. Main lines should be dimensioned according to maximum pressure losses and should rise upward from the lubrication unit. All components must be cleaned before assembly, and the system should be protected from excessive pressure using a pressure-limiting valve.
SKF MonoFlex Connector Systems
SKF offers connectors for plastic and metal pipelines, including quick connectors and fittings conforming to DIN standards, designed for pressures up to 300 bar. The system includes protective caps for use in dirty environments and utilizes a 3 O-ring system for secure connections.
Technical Specifications
The SKF quick connectors support operating pressures up to 300 bar and temperatures ranging from -40 to +80°C. They are compatible with oil, fluid grease, and grease.
Assembly and Disassembly Procedures
For metal pipes, cut to length using a pipe cutter and insert fully into the SKF quick connector. For plastic pipes, cut to length using a hose cutter and insert fully. Always depressurize the system before disassembling connectors to avoid high-pressure hazards.
Product Series Details
Various product series such as AB, 341, 340, 351, 350, 391, VN, 370, and 361 are detailed, each with specific configurations, materials, and operating conditions. These series cater to different lubrication needs and system designs.
Recommendations and Ordering Information
The document provides recommendations on choosing lubrication line diameters based on lubricant type and expected pressure losses. Detailed ordering information is provided for various components, including pipe bending devices, steel and plastic pipes, and hose lines.
Company Information
SKF Lubrication Systems Germany GmbH is highlighted as the provider, emphasizing their commitment to quality and innovation in lubrication systems. The document underscores SKF's global presence and expertise in enhancing equipment reliability and efficiency.
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Catalog excerpts

Product series AB, 341, 340, 351, 350, 391, 390, VR, 321, VN, 370, 361  product brochure-1

Lubricant distributors Product series AB, 341, 340, 351, 350, 391, 390, VR, 321, VN, 370, 361 For oil, fluid grease, and grease For use in SKF MonoFlex single-line centralized lubrication systems SKF MonoFlex single-line distributors are utilized in intermittently operated single-line centralized lubrication systems. They distribute and meter the lubricant fed by an intermittently operated centralized lubrication pump unit in SKF MonoFlex single-line centralized lubrication systems. In each lubrication cycle, a precisely metered quantity of lubricant, ranging from a minimum of 0,01 to a maximum of 1,5 cm³, is fed to the connected lubrication points. The product group of SKF MonoFlex singleline distributors includes a total of 11 different product series consisting of three different functional types (prelubrication, relubrication, and dynamic distributors) for various applications. Comprehensive accessories complete the product range. Depending on the design, SKF MonoFlex single-line distributors are approved for oils with viscosities from 20 to 2 000 mm²/ s, for fluid greases of NLGI Grade 000, 00, and 0, and greases up to NLGI Grade 2. The permissible operating pressures range from 8 to 315 bar, and the relief pressures range from 1 to 70 bar. In addition to the standard designs, several designs are also available in stainless steel. Further, several designs are also certified by Germanischer Lloyd with regard to corrosion resistance. Due to the variety of available products, SKF MonoFlex single-line distributors can be used in numerous applications, including machine tools and the wind, print, textile, and vehicle and construction industries.

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Product series AB, 341, 340, 351, 350, 391, 390, VR, 321, VN, 370, 361  product brochure-2

Important information on product usage SKF and Lincoln lubrication systems or their components are not approved for use with gases, liquefied gases, pressurized gases in solution and fluids with a vapor pressure exceeding normal atmospheric pressure (1 013 mbar) by more than 0,5 bar at their maximum permissible temperature.

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Product series AB, 341, 340, 351, 350, 391, 390, VR, 321, VN, 370, 361  product brochure-3

Important information on product usage . . . . . . . . . . . . . . . . . 2 Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Selection table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Description of functional types MonoFlex prelubrication distributors . . . . . . . . . . . . . . . . . . . . . 6 MonoFlex relubrication distributors . . . . . . . . . . . . . . . . . . . . . . 7 MonoFlex dynamic distributors . . . . . . . . . . . . . . . . . . . . . . . . . . 8 SKF MonoFlex system structure Prelubrication, relubrication,...

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Product series AB, 341, 340, 351, 350, 391, 390, VR, 321, VN, 370, 361  product brochure-4

Product overview SKF MonoFlex prelubrication distributors SKF MonoFlex prelubrication distributors for direct connection to the lubrication point SKF MonoFlex relubrication distributors 370 SKF MonoFlex dynamic distributors

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Product series AB, 341, 340, 351, 350, 391, 390, VR, 321, VN, 370, 361  product brochure-5

Selection table SKF MonoFlex single-line distributors Lubricant Distributor type Elastomer material Number of Relief metering pressure _ < [bar] points Prelubrication distributor Prelubrication distributor Prelubrication distributor Prelubrication distributor Product series Prelubrication distributor Prelubrication distributor Prelubrication distributor Prelubrication distributor Prelubrication distributor Prelubrication distributor Prelubrication distributor Prelubrication distributor Prelubrication distributor Prelubrication distributor Fluid grease Grease Prelubrication distributor Prelubrication...

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Product series AB, 341, 340, 351, 350, 391, 390, VR, 321, VN, 370, 361  product brochure-6

SKF MonoFlex single-line distributors Description of functional types Introduction Prelubrication distributor On SKF MonoFlex single-line distributors designed as prelubrication distributors, the quantity of lubricant is fed to the lubrication point while pressure is being built up in the main line, i.e., during the lubrication unit’s run time. On prelubrication distributors, the expelling pressure can be set so it is approximately equal to the maximum permissible pressure of the pressure regulating valve on the lubrication unit. After the lubrication unit is switched on, the lubricant is drawn...

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Product series AB, 341, 340, 351, 350, 391, 390, VR, 321, VN, 370, 361  product brochure-7

SKF MonoFlex single-line distributors Description of functional types Relubrication distributor Main line Area of application Relubrication distributors are used in applications where an excessively high and sudden pressure at the lubrication point is undesirable, for example, when lubricating slideways on grinding machines. Such pressure at the lubrication point can lead to undesirable rough grinding results. The expelling time of the relubrication distributor depends on the back pressures in the lubrication point lines. If, for example, the lubrication points are under heavy load during the...

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Product series AB, 341, 340, 351, 350, 391, 390, VR, 321, VN, 370, 361  product brochure-8

SKF MonoFlex single-line distributors Description of functional types Area of application Dynamic distributors are used in applications where the lubricant needs to be delivered to the lubrication point almost immediately. An important application for dynamic distributors is the lubrication of chains in machinery and conveyor belts. Dynamic distributor On SKF MonoFlex single-line distributors designed as dynamic distributors, the quantity of lubricant is fed to the lubrication point while pressure is being built up in the main line, i.e., during the lubrication unit’s run time. On dynamic distributors,...

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Product series AB, 341, 340, 351, 350, 391, 390, VR, 321, VN, 370, 361  product brochure-9

SKF MonoFlex system structure Prelubrication, relubrication, and dynamic distributor system SKF MonoFlex single-line centralized lubrication systems with single-line distributors generally consist of a lubrication unit, the single-line distributors, and the lubrication lines. The pressure regulating valve and pressure relief valve required for the singleline centralized lubrication system’s operation are normally integrated into the lubrication unit. If pressure losses of greater than 10 bar are expected in the single-line centralized lubrication system, for example due to expansion of the system...

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Product series AB, 341, 340, 351, 350, 391, 390, VR, 321, VN, 370, 361  product brochure-10

SKF MonoFlex system structure Important notes Fig. 1 WARNING Leaking lubricant is hazardous due to the risk of slipping and injury. Before using the equipment, fix any system where lubricant is leaking during assembly, operation, maintenance, and repair. Lubricants can contaminate soil and bodies of water. Lubricants must be used and disposed of properly. Observe the local regulations and laws regarding the disposal of lubricants. Lubrication point The lubrication line system also needs to be protected from excessive pressure by means of a pressure-limiting valve that is mounted separately or...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.