Product Details

Specifications

F4 plastic washer material
1.excellent chemical properties,acid and alkali resistant
2.wide working temperature range

F4 plastic washer Material

Characteristics:
F4 / PTFE gasket is made of suspension PTFE. Compared with other plastics, it has better corrosion-resistance and excellent heat-resistance. It is now widely used as sealing material.
Usage:
It is usually used for corrosion-resistance under -180 - 200°C, and sealing parts in ordinary electric property conditions.

Main technical indicator:
1) Apparent density: 2.10 ~ 2.30g/cm³
2) Tensile strength: ≥15.0Mpa
3) Ultimate elongation: ≥150%

Property	Unit	F4 Target value	Filling F4 target value
Tensile strength (min)	MPa	≥200	≥70
Elongation at rupture	%	≥250	≥50

available sealing gasket standard

Inner diameter×outer diameter×thickness	Approximate weight(g)	Inner diameterouter diameterthickness	Approximate weight(g)
20×6×3	2.2	65×32×3	16.7
22×6×3	2.3	66×40×4	13
24×6×3	2.8	75×65×4	10
27×6×3	3.5	78×45×3	22
28×8×3	3.4	80×40×5	41.5
28×6×3	4.5	85×49×3	25
32×10×3	5	90×15×5	159
34×8×3	6.4	90×60×5	40
40×12×3	7.6	93×85×3	7.5
40×25×3	5	96×50×5	59
42×10×3	8.6	96×44×4	55
42×12×4	12.6	100×50×5	65
50×20×4	14.5	100×57×3	35
50×32×3	7.8	120×60×5	97.4
52×20×4	16	120×63×5	92
55×25×3	12.4	145×81×5	125.5
57×27×3	13	172×96×5	138.5
60×30×4	18.7	228×212×20	247
62×37×3	12.8	280×260×20	390
64×30×4	22.1

We can offer different standard sealing ring according to customers demand

Our factory can offer (1).different standard Q41F-16DN15~DN200 entrance diameter ball valve of ptfe sealing ring and upper-middle-down filling products, different kinds ball valve regulation gasket, nonstandard DN15~DN100 ptfe sealing ring and upper- middle -down filling products

(2).different kinds PTFE Moulding gasket: 75×22×5, 60×20×3, 55×23×3, 55×16×4