Thanks to its experience in the manufacture of self-priming vibration pumps of the series 14000, which have been successfully sold on the world market for more than several years, OLAB is now aiming at a new and more ambitious objective to expand its own range of products: the introduction of the vibration pumps of the series 22000. Thanks to the substantial economic investments that its far-seeing general management devoted to the development of this project, a corporate division called “OLAB Pump Division” has been created for design, manufacture, assembly and testing of vibration pumps. A new production site, a modern plant for manufacture of coils which is in the forefront for its quality and output capacity all over the world, automatic stations for assembly of components, machines for 100% testing of finished products, highly skilled technicians who guarantee product and process optimization, are the foundations on which are based the pillars of the philosophy of the company whose aim is total quality.

OLAB was founded in 1988, but we inherited over 40 years’worth of skills and expertise.

During all this time we have always opted to look to the future, explore new road and focus on new horizons. Which is why our 25.000 m2 production facility is now equipped with state-of –the-art  plant and machinery developed especially for us.

Pure technology that enables us to turn out high quality products, for an endless range of applications, with absolutely unparalleled features.

The pilot-operated solenoid valves manufactured by OLAB, represented by the Series 18000, are on-off valves suitable for liquid and gaseous fluids whose viscosity is not greater than 37 CST (or 5°E).
These are servo-controlled diaphragm solenoid valves with BSPP threaded female inlet-outlet connections (cylindrical for gas), CW617N brass casing and cap, stainless steel magnetic parts and NBR  diaphragm for water, EPDM peroxide, FKM (FPM) or other elastomers upon request.
The 18000 valves are of the 2/2-ways normally closed type (2 ways 2 positions), while the 18500 valves are 2/2-ways normally open.
Both versions are available in three models:
- with coil (18000 and 18500) - (protection degree IP00)
- without coil (18010 and 18510)
- with coil + connector (18020 and 18520) - (protection degree IP65 according to the din 40050 standard).
Despite their small weight and size (due to their peculiar profile), they are extremely robust and the fluid temperature are in compliance with gasket materials and the maximum allowable viscosity.
They are suitable for all fluids compatible with the materials which the gaskets and the internal components are made of, except for the dangerous fluids of Group 1 as according to the European Directive  97/23/EC (PED).
The range includes all sizes from 3/8” to 2” with ø11.5 to ø50 (DN) holes, while coils are all Class H for continuous use (ED 100%).

The guided diaphragm pilot operated solenoid valves of the Series 20000 by OLAB are of the guided diaphragm-type with BSPP threaded female inlet and outlet connections (cylindrical for gas), CW617N  brass casing and cap, stainless steel magnetic parts and FKM (FPM) diaphragm.

NORMALLY CLOSED	NORMALLY OPEN

The electro-pilot of the pilot-operated solenoid valves is not directly responsible for opening the solenoid valve.
The solenoid valve presents three sequential chambers (see drawing below):
- inlet chamber Ci (upstream the diaphragm)
- compensating chamber Cc (downstream the diaphragm and upstream the electro-pilot)
- outlet chamber Cu (downstream the electro-pilot).
In the 2/2-way normally closed (N.C.) solenoid valve, Ci and Cc are communicating by means of a compensating hole when the coil is de-energized. Therefore, the diaphragm is in a condition of  balanced pressure level and DN tightness is ensured by the retaining spring load of the same diaphragm.
When the coil is energized by acting on the electro-pilot, there is an immediate communication between Cc and Cu: the sudden increase in volume of the pressurized fluid over the diaphragm (Cc +  Cu > Ci) causes, according to the Boyle-Mariotte’s law, a pressure drop.
The diaphragm is no longer in a condition of balanced pressure level (pressure under it is higher than pressure over it) and swells up in the higher pressure direction raising up and opening the DN to  let the fluid flow.
In the 2/2-way normally open (N.A.) solenoid valve, Cc and Cu are communicating when the coil is de-energized and pressure under the diaphragm is higher than pressure over it and as a result, the diaphragm is raised to let the fluid flow.
When instead the coil is energized, the communicating passage between Cc and Cu is closed. The volume available to the pressurized fluid above the diaphragm is suddenly reduced and, always  because of the Boyle-Mariotte’s law, this results in a pressure increase above the diaphragm. The lack of balance so produced makes the diaphragm close on the seal.

The AISI 316 stainless steel fittings are available in the 3 following series:
Series 4000 (light series )
Various fittings, nipples, reducers, elbows, tees and three-piece pipe unions from precision casting, that can be used for light applications (max 20 bar).
Series 4500 (heavy series )
Various fittings, nipples, reducers, elbows, tees and three-piece pipe unions from ingot or hot-forgings that can be used for heavy applications (max 130 bar).
Series 5000
Various fittings, nipples, reducers, elbows, tees where the compressive action by the cutting ring prevents pipe displacement according to DIN 2353 standard.
They are particularly suitable for high pressure applications (up to 630 bar) and to be used preferably in static conditions and with no vibrations

Olab has been producing solenoid valves and fittings for small household appliances for several decades. Over this time research and development have aimed at solving problems felt to be most  critical by customers. Part of this research has led to the development of a series of surface treatments complying with the strictest international standards in the food sector.

These treatments, mentioned below, have been applied to our products:

• TM1 (in compliance with the requirements of the American NSF/ANSI ST51 Standard (food equipment materials)
• TM2 (in compliance with the requirements of the NSF/ANSI ST51 American Standard (food equipment materials), NSF/ANSI STD 61 (drinking water system components section 8-ph5 hot commercial 82°C), in compliance with the 1935:2004 European Regulation
• TM3 (in compliance with the 1935:2004 European regulation, only under special conditions)

Our research and development in the field of surface treatments never stopped. Along with the surface treatments mentioned above (proven by several certifications obtained) a new revolutionary  treatment has been developed which inhibits the migration of heavy metals at the same time keeping the organoleptic characteristics of fluids unvaried. Almost a year of intensive research resulted in the new TM4 treatment which makes metal surfaces (brass or steel) “impermeable” because of the electrolytic deposition of a double layer of non-toxic agents, which also inhibits the emission of  noxious elements.

All items manufactured by OLAB, ranging from solenoid valves to fittings, may be subject to patented surface treatment to give brass surfaces self-lubricating and anti-adhesive characteristics that increase the item’s life (up to three times).

SURFACE TREATMENTS CATALOG

	Yellow brass solenoid valves
TM1-treated brass solenoid valves	TM2-treated brass solenoid valves	TM4-treated brass solenoid valves
OLAB patented treatment in compliance with American NSF/ ANSI ST51 standard (food equipment materials) compliance with european standard 1935:2400 to be considered according to different applications	OLAB patented treatment in compliance with American NSF/ANSI ST51 standard (food equipment materials), nsf/ansi std 61 (drinking water system components) and European (CE) 1935/2004 standard	Almost a year of intensive research resulted in the new TM4 treatment which makes metal surfaces (brass or steel) “impermeable” because of the electrolytic deposition of a double layer of non-toxic agents, which also inhibits the emission of noxious elements.

OLAB has a wide range of fittings for pneumatic applications. The coupling fittings “Flash” of the series 100 are compact and reliable. They are available in several configurations in nickel-plated brass and stainless steel or plastic but also in the version 100% detailed inspection with TM2 treatment for food and Viton® O-ring for food to meet the U.S.D.A. and N.S.F. american standards. The fittings of the series 200 are compression fittings that, thanks to their cutting ring, ensure tightness under pressure and pipe locking. The series 300 includes push-on fittings which, because of their high quality and compactness, are suitable for small spaces. The series 400 counts a wide range of sound-reducing devices, threaded fittings, nipples, reducers, extensions, plugs and hoses for general plants as well as hydraulic and pneumatic plants. The range includes check valves, ball valves and ball joints. are compression fittings that, thanks to their cutting ring, ensure tightness under pressure and pipe locking. The series 300 includes push-on fittings which, because of their high quality and compactness, are suitable for small spaces. The series 400 counts a wide range of sound-reducing devices, threaded fittings, nipples, reducers, extensions, plugs and hoses for general plants as well as hydraulic and pneumatic plants. The range includes check valves, ball valves and ball joints.

OLAB does not only produce a vast range of fittings, it also supplies rapid and effective custom solutions thanks to its competent, flexible and dynamic design office. Our team of engineers collaborates actively with the main Italian and foreign companies operating in the railway and automotive industry. They propose innovative solutions designed to improve performance in terms of plant safety and efficiency. The close relationship established goes well beyond an ordinary customer-supplier relationship. It culminates in an actual “engineering partnership”, in which OLAB is involved right from the design stage. This new concept of cooperation between OLAB and its customers has led this year to the creation of the new OLAB Railway Division, where kits (shaped pipes and fittings) are pre-assembled ready for final installation by the customer. The advantages of these coded and packaged assembly kits are a significant reduction in installation times and considerable cost saving.