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 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 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
Regulatory compliance to FDA 21 CFR 177.1520, RoHS, BPA-free, DEHP-free, BSE/ADI-free
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
Regulatory compliance to FDA 21 CFR 177.1520, USP class VI, RoHS, BPA-free, DEHP-free, BSE/ADI-free
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
Regulatory compliance to FDA 21 CFR 177.1520, RoHS, BPA-free, DEHP-free, BSE/ADI-free
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
Regulatory compliance to FDA 21 CFR 177.1520, USP class VI, RoHS, BPA-free, DEHP-free, BSE/ADI-free
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. Durchfluss Flüssigkeiten1 l/h
|
Werkstoff |
Einheit Stück
|
Price Euro* |
Buy |
---|---|---|---|---|---|---|---|---|
304871 |
|
2 | G 1/16" | 100 | PP | 1 | 111.00 | |
304872 |
|
2 | G 1/16" | 100 | PVDF | 1 | 165.00 | |
304873 |
|
2 | G 1/16" | 100 | PFA | 1 | 420.00 | |
304874 |
|
3 | G 1/8" | 500 | PP | 1 | 111.00 | |
304875 |
|
3 | G 1/8" | 500 | PVDF | 1 | 165.00 | |
42996 |
|
4 | G 1/4" | 610 | PP | 1 | 109.00 | |
304000 |
|
4 | G 1/4" | 610 | PVDF | 1 | 163.00 | |
304002 |
|
4 | G 1/4" | 610 | PFA | 1 | 400.00 | |
304876 |
|
6 | G 1/4" | 900 | PP | 1 | 111.00 | |
304877 |
|
6 | G 1/4" | 900 | PVDF | 1 | 165.00 | |
304878 |
|
6 | G 1/4" | 900 | PFA | 1 | 405.00 | |
304879 |
|
8 | G 1/2" | 1.900 | PP | 1 | 211.00 | |
304880 |
|
8 | G 1/2" | 1.900 | PVDF | 1 | 475.00 | |
43000 |
|
10 | G 1/2" | 3.900 | PP | 1 | 238.00 | |
304001 |
|
10 | G 1/2" | 3.900 | PVDF | 1 | 469.00 | |
304003 |
|
10 | G 1/2" | 3.900 | PFA | 1 | 893.00 |