Centrinės tepimo sistemos

Centrinių tepimo sistemų tepalai                        

Rūšis

Darbinės temperatūros, ºC

Lašėjimo temperatūra, ºC

Pagrindas

Panaudojimas, savybės

Molylub

Lycos ZS 00/000

 

-40 iki +130

> 170

Mineral + LiHdrx

NLGI 00 - 000 konsistencijų tepalai.

Pusiau skystas centrinių tepimo sistemų konsistencinis tepalas. Sunkvežimių, statybos technikos sistemoms, staklėms. Rusvas. KEP-00K pagal DIN 51825; GP 00 K-40 pagal ISO-L-XDCHB 00; NLGI 00; Willy Vogel aprobacija.   

  • Willy Vogel AG, Blatt 264
  • Bielomatic; Zentralschmiertechnik
  • MAN 264.0 / 283

Molyduval

Long-Life ZSA

 

-40 iki +120

 

180

 

mineral

Prailginto veikimo, ekstra klasės specialus centrinių guolių sistemų tepalas. Gelsvas. GP0G-40 ir KP0G-40 pagal DIN 51502. NLGI 0.

Molylub

Nessos SF 0

 

-25 iki +120

 

>155

 

Min/Na

Lengvai vandeniu nuplaunamas saugios aplinkai sistemai skirtas Natrio tirštiklio pagrindo tepalas.

Molyduval

Long-Life ZSA MB

 

-50 iki +140

 

180

 

Mineral + Li

Transporto priemonių centrinių sistemų tepalas.

Speciali Daimler Benz  DBL 6833.00 specifikacija. Taip pat Willy Vogel, MAN 283 Li-P00. Žalias. KP00/000K-50 pagal DIN 51502. NLGI 00 / 000.

Molyduval Prometheus LM 20

 

-30 iki +120

 

190

 

Mineral + Li

Staklių centrinių tepimo sistemų sunkiai apkrautiems  reduktoriams, dantračiams.

GP00G-30 pagal DIN 51502. Gelsvas. NLGI 00.

Molyduval Valenzia ZSA

-35 iki +180

190

Mineral + Li Komplks

Aukštatemperatūrinis, padidinto atsparumo drėgmei centrinių tepimo sistemų tepalas. Ypač celiuliozės, popieriaus, tekstilės pramonės įrengimams, dirbantiems padidintų temperatūrų ir drėgmės aplinkoje. Geltonas. KP00/000G-30 pagal DIN 51502. NLGI 00 / 000.

Molyduval

Aero 78

 

-70 iki +120

 

180

 

Sintet. Ester

Specialus sintetinių esterių pagrindo žematemperatūrinis tepalas centrinėms tepimo sistemoms, reduktoriams. Rudas. KPE00/000G-70. NLGI 00 / 000.

Pusiau skystas plastinis tepalas

Molylub Lycos ZS

Centrinių tepimo sistemų konsistencinis tepalas

Vokietijos kompanijos Molylub sukurtas specialus pramoninis tepalas, gaminamas ličio hidroksisteratinio muilo tirštintojo, bei nuo oksidacijos, susidėvėjimo ir rūdžių apsaugančių priedų pagrindu.

Pritaikymas

  •  Ypač rekomenduojama slydimo ir riedėjimo guoliams, tepamiems bendra centrine tepimo sistema
  •  Pavaroms, tepamoms taškiniu tepimu automatiniais lubrikatoriais
  •  Žematemperatūriniu režimu dirbantiems mechanizmams, kai reikia užtikrinti pakankamą tepalo takumą ir nestingimą net prie žemiausių temperatūrų                                             
  • „Multiline“ tipo centrinėms tepimo sistemos                                                                                            
  • Komercinio auto transporto, bekelės, statybinės, kelių tiesimo, mobilių betono padavimo siurblių, karinės technikos centrinėms tepimo sistemoms   
  • Hidraulinių presų sunkiai apkrautų mazgų tepimui Voegel automatine tepimo sistema

Eksploatacinės charakteristikos

Didelė mechaninių krūvių pernešimo geba

Ypatingas takumas ir pumpuojamumasis ilgomis centrinių tepimo sistemų vamzdelių atkarpomis

Labai atsparus vandens nuplovimui

Sumažina energijos sunaudojimą palengvindamas guolio darbinį sukimąsį

Puikus konsistencijos stabilumas svyruojant temperatūroms

Ekolgiškai saugus, sudėtyje nėra agrersyvių bario ir chloro junginių

Specifikacijos ir patvirtinimai

§ Atitinka ir viršyja DIN 51 502 klasifikaciją K00/000K-40

§ Atitinka ISO-L-XCDHB 000 pagal ISO/DIS 6743-9 reikalavimus

§ Willy Vogel AG, Blatt 264 / Bielomatic; Zentralschmiertechnik / MAN 264.0 / 283

Būdingos fizikinės charakteristikos

Lycos

Metodas

ZS

NLGI koncistencija

DIN 51 818

00 - 000

Spalva

 

Rusva

Tirštintojo tipas

 

Ličio

hidroksisteratas

Bazinė alyva (tipas)

DIN 51 562

Mineralinė ISO VG 68

Lašėjimo pradžios taškas,°C

DIN ISO 2176

> 170

Kūginis įsiskverbimas

 @ 25°C   0.1mm

DIN ISO 2137

 

430 - 460

Oksidacinis atsparumas , bar   

DIN 51 808

0,2

Darbinės temperatūros,°C

 

-40 iki +130

Pumpavimas ilga atkarpa

 

Ypač Geras

Patarimai : Informaciją apie alyvos panaudojimą, nenurodytą šiame aprašyme, galite gauti iš vietinio Molylub atstovo Pramonei : tel. (682)29 049 ar el-paštu : info@mechanica.lt

Centralized Grease Lubrication Systems

Brad Jeffries

Centralized grease lubrication systems are widely used in industrial and heavy-duty mobile equipment applications to lubricate multiple points on a machine. These systems range from a simple single-port lubricator to complex dual-line, reversing units employing timers and alarms to deliver grease reliably to hundreds of grease points.

The design parameters of centralized grease systems include the volume and frequency of grease required at each point, the number of points requiring grease, operating conditions, pump pressure, line diameter and distance to the grease points. When used and maintained properly, centralized grease systems can help enhance technician productivity and simplify equipment maintenance processes. The following is a comprehensive overview of centralized grease systems and the benefits they offer, the various types, concerns to watch out for and tips on how to maintain them properly.

Advantages of Centralized Grease Lubrication Systems 
Centralized grease systems are designed principally to make the work environment safer for maintenance personnel by simplifying the process of accessing remote grease points, especially in confined spaces, when equipment is in operation. However, the primary benefit is derived from the continuous application of small amounts of grease resulting in improved equipment life, due to the uniform supply of grease.

Hand application is typically performed infrequently and may result in uneven amounts of grease being applied, which can lead to overgreasing resulting in damaged seals and elevated bearing temperatures caused by grease churn.

It is important for maintenance professionals to realize that many centralized grease systems have long lines, precise metering valves, fittings and numerous connections that can malfunction due to vibration, air entrainment and other environmental impacts. Thus, carefully monitoring and maintaining the systems on a consistent basis is critical.

Types of Centralized Grease Systems 
Centralized grease lubrication systems are designed to lubricate the broadest range of stationary and mobile equipment. As the lubrication application becomes more complex, the design of the system also becomes more complex as additional features are added.

Most centralized grease systems fall into two categories. The first is a direct system in which a pump is used to pressurize the grease and meter it out to the application point. The second and more complex type is an indirect system in which a pump pressurizes the grease. Valves built into the distribution line are then utilized to meter the grease into the bearings.

Indirect systems are further broken down into two basic types, parallel and nonparallel. In parallel systems, also known as nonprogressive, the system is pressurized and the metering valves operate simultaneously. The disadvantage of a parallel system is that it can be difficult to identify a failed (blocked) valve, as grease will continue to be dispensed through the remaining valves. Pump pressure will not increase and there will be no outward sign of a valve failure (Figure 2).

Centrinė tepimo sistema
Figure 2. Single-line Parallel System
Courtesy of Lincoln Industrial

In nonparallel systems, also known as progressive, the metering valves are installed in-line. After the system is brought up to pressure, the first valve operates. Grease then flows through it to the next valve in line. In this setup, if one valve fails, the entire system fails resulting in increased pressure at the pump and no grease consumption. No other obvious problems can be used to quickly identify the exact point of failure (Figure 3).

Progresinė tepimo sistema
Figure 3. Single-line Progressive System
Courtesy of Lincoln Industrial

Parallel and nonparallel systems can be further broken down into single- and dual-line systems. Today, the most common type of centralized grease system is the indirect single-line system, accounting for more than 50 percent of the market. For single-line machines, injectors represent the key to quality performance. In single-line systems, injectors are responsible for metering the correct amount of grease to the bearing or other surfaces requiring grease lubrication. When advancing to a new cycle, one must always vent the injectors.

The other type of system, the dual- or two-line system, uses two supply lines to provide grease to the injectors. A four-way valve is used to direct grease alternately to each of the grease lines while relieving pressure on the other line. The second line provides a safety margin but involves additional cost and complexity related to installation.

There are a number of ways to control both the single- and dual-line systems. The valves can be operated manually, cycled by a timer or controlled by a counter that measures grease flow.

Various strainers, filters, alarms and monitoring devices may also be included in the system. These systems are set up in one, two or three stages, depending on the number of lubrication points.

Machinery Lubrication (1/2005)