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High-Quality Ball Cock made of PP, PVDF or PFA - injection-molded

Product specification Light type, produced by the injection-moulding process. Ball with stem... more

Product specification

Light type, produced by the injection-moulding process.

Ball with stem is both centered and sealed by sealing sleeves, thus ensuring optimal sealing of the ball to the connections and preventing an undesired leakage of the medium.

Highest media resistance is guaranteed by housing made of PP, PVDF or PFA as well as by sealing sleeves made of PTFE.

Technical specification

Material:

Housing: PP (polypropylene), PVDF (polyvinylidene fluoride) or PFA (perfluoroalkoxy)

Sealing sleeves: PTFE (polytetrafluoroethylene)

O-ring: FPM (fluorinated rubber)

Vacuum-Resistance: up to 10-8 mbar

General Information THOMAFLUID ® -ball cocks (ball with through bore) with rotary handle... more

General Information

THOMAFLUID®-ball cocks (ball with through bore) with rotary handle are available in numerous variations.

Two types are available: the block construction EMP-A6 (parts 28880) on the one hand, and the compact cocks EMP-L6 on the other hand (parts 304871).

The type EMP-L6 is produced cost-effectively by injection moulding, providing a remarkable manageability and compactness of the cock body.

The block construction EMP-A6 is produced in the metal-cutting manufacturing process. The cocks are excellently suitable for direct wall mounting due to their rectangular construction. The product range varies from two-way cocks with through bore to five-way cocks with ball angled bore.

The ball cocks are designed for max. 10 bar (at +20 °C).

Safe and reliable isolation, mixture as well as distribution of gases and liquids

High flow rates even at heavily contaminated media

Ball and stem are manufactured in one piece

Sealing sleeves made of PTFE with highest resistance to chemically aggressive media

Securing of the sealing sleeves by O-rings made of FPM

Sealing of the ball upward by stem sealing using an O-ring

Numerous connection possibilities due to compatibility with THOMAFLUID®-and MULTIFIT®-tubing connectors, pipe connectors and fittings

Easily revolving manual rotary handle with position indicator

Fastening possibilities due to fixing clamps and angle brackets

Seamless cylindrical G 1/2" and G 1/4" internal thread according to DIN ISO 228

PP (Polypropylene)

High surface hardness

Resistant to hydrolysis

Autoclavable

Thermoforming possible

Physiologically safe

Very good dielectrical properties

Extremely good impact toughness and notch impact strength

Higher hardness and stiffness as well as better resilience than PE

Good resistance to alcohols, ketones, conc. acids and alkalis

Not stable to aromatic hydrocarbons, fats and oils, halogenes

Colour: grey

Density: 0.92 g/cm3

Temperature range: +5 to +90 °C

Shore hardness D: 72°

Max. operating pressure: 10 bar at +20 °C

Water absorption: <0.05 % (lowest water absorption)

Tensile strength: 25 - 40 N/mm2

Elongation at break: 800 %

Surface resistance: >1013 Ohm

PVDF (Polyvinylidene fluoride)

High-quality technical plastic for chemical apparatus and machine building, especially in the petrochemical, metallurgical, pharmaceutical, food processing, paper and textile industry as well as in the nuclear technology.

High impact toughness even at low temperatures

Highest mechanical stability and stiffness

Good breakdown strength

Low dielectric loss factor

Physiologically safe

Meeting highest purity requirements

Outstanding resistance to UV, weather and aging

Flame-resistant

High thermal stability

Resistant to alcohols, fats and oils, halogenes, alkalis, acids

Not stable to aromatic hydrocarbons, ketones, amines, pyridine, dimethylformamide, hot alkalis, fuming sulfuric acid

Colour: nature, slightly translucent

Density: 1.75 g/cm3

Temperature range: -40 to +140 °C

Shore hardness D: 79° (great hardness)

Max. operating pressure: 10 bar at +20 °C

Water absorption: <0.04 % (water resistant)

Tensile strength: 38 - 50 N/mm2

Elongation at break: 12 %

Surface resistance: >1013 Ohm

PTFE (Polytetrafluoroethylene)

Heavy-duty plastic

Antiadhesive surface

Highest gas-tightness

Non-combustible

Outstanding sliding properties

High tracking resistance

Excellent stress cracking resistance

Excellent weather resistance

Very good dielectrical properties independent of frequency and temperature

Very good electrical insulating capacity also at air humidity

Very good chemical resistance to most aggressive media

Colour: milky, white

Density: 2.20 g/cm3

Temperature range: -200 to +150 °C

Shore hardness D: 60°

Max. operating pressure: 6 bar at +20 °C

Water absorption: 0.01 %

Tearing strength: 30 - 40 N/mm2

Elongation at break: 300 %

Surface resistance: >1017 Ohm

PFA (Perfluoroalkoxy)

High-quality technical plastic for chemical apparatus and machine construction as well as electrical engineering

Very good pressure resistance

Very high resistance to media

Excellent resistance to weather

Flame-resistant

Colour: milky, translucent

Density: 2.10 g/cm3

Temperature range: -200 to +200 °C (highest dimensional stability in heat)

Shore hardness D: 60° to 65°

Max. operating pressure: 10 bar at +20 °C

Water absorption: <0.03 %

Tensile strength: 27 to 32 N/mm2

Elongation at break: 300 %

Surface resistance: >1017 Ohm

FPM (Fluorinated rubber)

FPM is a polymer of highest quality made of fluorinated hydrocarbons (fluorine content 64 % to 70 %) and belongs to the group of elastomers

FPM has the best resistance to swelling in mineral oils compared to all elastomers

Highest sealing force in continuous operation (after 100 h at +150 °C in air still 90 % of the initial sealing force)

Lowest evaporation rates at high vacuum

Low permeability to gas

Outstanding radiation resistance

Excellent chemical and physical properties, almost identical to those of PTFE. The essential difference compared to PTFE is the lower cold flow, lower diffusion and better transparency.

High chemical resistance to many chemicals, ozone, heat and weather.

Unstable to polar solvents such as ketones and esters (considerable swelling), organic acids (acetic acid or formic acid), strong bases such as amines (chemical attack).

Not suitable for applications at temperatures below -20 °C as well as in hot steam.

Colour: black

Density: 1.10 g/cm3

Temperature range: -30 to +220 °C, for a short time +300 °C

Water absorption: no data

Tensile strength: 13 N/mm2

Elongation at break: 450 %

Shore hardness A: 75°

Surface resistance: no data

Item Image NW
mm
Internal thread Max. flow rate liquids1
l/h
Material Unit
piece
Price
Euro*
Buy
304871
2 G 1/16" 100 PP 1 72.00
304872
2 G 1/16" 100 PVDF 1 108.00
304873
2 G 1/16" 100 PFA 1 276.00
304874
3 G 1/8" 500 PP 1 72.00
304875
3 G 1/8" 500 PVDF 1 108.00
42996
4 G 1/4" 610 PP 1 72.00
304000
4 G 1/4" 610 PVDF 1 108.00
304002
4 G 1/4" 610 PFA 1 266.00
304876
6 G 1/4" 900 PP 1 72.00
304877
6 G 1/4" 900 PVDF 1 108.00
304878
6 G 1/4" 900 PFA 1 266.00
304879
8 G 1/2" 1.900 PP 1 138.00
304880
8 G 1/2" 1.900 PVDF 1 312.00
43000
10 G 1/2" 3.900 PP 1 158.00
304001
10 G 1/2" 3.900 PVDF 1 312.00
304003
10 G 1/2" 3.900 PFA 1 594.00
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