Witte CHEM Gear Pump

Technical data

Housing

Unalloyed and alloyed steel · Tantalum · Titanium · Hastelloy® · Ceramics

Gear Shafts

1.4112, but also all other processed ceramic and metal materials, such as 1.4571, Ferralium®, Ferro Titanite®, Hastelloy®, etc. · optional with coating · gearing

Axial shaft seals

Single internal, single external or double mechanical seal · Stuffing box · Magnetic coupling

Heating

Steam · Water · Heat transfer oil · Electric

Friction bearing

Carbon · NiAG (nickel silver) · Silicon carbide · Zirconium oxide · Tool steel · Aluminum bronze · Special materials · optional with coating

Application examples for WITTE chemical pumps from the CHEM series

Organic and inorganic chemicals

Alcohols · Additives · <br> Bases · Ester · Glycerin · Resins · Hardeners · Isocyanate · Monomers · Oils · Phenols · Acids · Biodiesel · Asphalt · Bitumen · Tar · Hotmelt · Adhesives · Wax · etc

Polymers

Cellulose · Nylon 66 · Prepolymers · etc.

Food

Vegetable oils · Butter · Margarine · Flavoring · Chocolate · Fondant · Licorice · Chewing gum mass · Vitamins · Syrup · Gelatin · etc.

Pharmaceutical and cosmetic products

Amino acids · Lotion · Shampoo · Vitamins · etc.

Other medium

Cellulose · Hotmelt · various adhesives

Gear pumps for chemical applications

CHEM gear pump to transport and dose low to medium viscous media.
The application range reaches from classic transfer and dosing tasks in the chemical and pharmaceutical industries to the transportation of monomers, oligomers and prepolymers during polymer production. Through decades of construction experience and optimal material selections, these chemical pumps are suitable for even the most difficult of tasks and maintain their reliability and dosing accuracy in vacuum and high pressure applications. Typical areas of application for this pump type can be found in the chemicals, cosmetics, food industries, petrochemicals and polymer industries.

WITTE chemical pumps from the CHEM series can be operated horizontally, vertically and also as submersible pumps lowered in medium.

PUMP SIZE SPECIFIC VOLUME (CM3/U) FLOW RATE (L/H)*1

CHEM 1,28-22-6 1,28 20–200

CHEM 2,78-22-13 2,78 40–400

CHEM 4,7-22-22 4,7 70–700

CHEM 10,2-28-28 10,2 140–1.400

CHEM 25,6-36-36 25,6 280–2.800

CHEM 46,3-45-45 46,3 410–4.100

CHEM 92,6-56-56 92,6 650–6.500

PUMPENGRÖSSE SPECIFIC VOLUMEN (CM3/U) FLOW RATE (L/H)*1

CHEM 176-70-70 176 990–9900

CHEM 371-90-90 371 1.600–16.200

CHEM 716-110-110 716 2.500–25.300

CHEM 1.342-140 -140 1.342 3.800–37.800

CHEM 3.200-180-180 3.200 6.900–69.100

CHEM 6.100-224-224*2 6.100 11.000–106.000

CHEM 12.000-280-280*2 12.000 17.000–170.000

Operating parameters

Viscosity

0,5 to 1.000.000 mPas

Temperature

Up to 300°C · higher temperatures on request

Suction pressure

Vacuum up to max. 15 bar, magnet drive also higher

Transport pressure /differential pressure

Up to 120 bar

Pump sizes

From 0.2-9-5.5 to 12,000-280-280