Menu

Connect with us

Less than or equal to 120

price:USD$1500.00
discount 70% in 2018-09-23 to 2018-09-25
price: USD$ 1050.00
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
views:0
Search Similar or mail to saler or send message to saler

Pay with PayPal, PayPal Credit or any major credit card

 

Three way diaphragm valve

Related models:G49J G49W G49F

Main lining material description

Performance range of lining such as fluorine plastic and rubber

performance

Name

Teflon

Poly (three chloro vinyl fluoride)

Polyvinylidene fluoride two

Polyperfluoroethylene allyl

Soluble polytetrafluoroethylene

polyolefin

polyethylene

polypropylene

Abbreviation

PTFE

PCTFE

PVDF

FEP

PFA

PO

PE

PP

Code

F4

F3

F2

F46

+FA

-

-

-

physical property

Specific gravity R (g/cm3)

2.1-2.2

?2.1-2.2

1.76

2.1-2.2

2.1-2.2

0.92

0.92

0.92

Water absorption rate (%)

0.001~0.005

≤0.005

0.04

≤0.01

≤0.01

0.005

0.005

0.005

Shrinkage of finished products (%)

1~5

1~2.5

20

2~5

1~5

1~2

1~2

1~2

Thermal expansion coefficient 10-5/k

10~12

4.5~7.0

8.5~15.3

8.3~10.5

8.3~12

-

-

-

Embrittlement temperature T1 (c)

-180~-195

-80~-195

-62

-260

-80~-195

-40

-40

-20

Continuous resistance to human T2 (DEG C)

260

120~190

150

204

260

100

100

110

Recommended temperature is T3 (c)

≤180

≤120

≤100

≤150

≤180

≤85

≤85

≤100

 

Mechanical properties

Hardness Shao type

D50~65

D74~78

D80

(R45)

D50~65

D40

D40

D40

Friction coefficient f

0.06

0.3

0.14~0.17

0.06~0.11

0.06~0.11

--

--

--

Tensile strength bMpa

1.37~24.5

3.13~39.2

45~48.3

20.2~24.5

14~18

≥1.0

6.9~1.4

7.5~14

Bending strength wMpa

1.07~1.37

53.9~68.6

--

--

15~28

--

--

--

Compressive strength Sigma yMpa

111

80.3~50.9

68.6

--

111

--

--

--

Impact strength? Alpha kkj/m2

16

12.7~16.6

19.7

Constantly

1+

55

45

50

Limit expansion of delta e?%

250~350

30~190

30~300

250~270

300~500

480

300~600

600~700

Breakdown voltage VKv/mm

25~40

19.7

10.2

40

40

--

--

--


Diaphragm material (code)

Applicable temperature

Suitable????????????????

Butyl rubber (class B)

≤100℃

It has good acid and alkali resistance. It is suitable for medium concentration of general corrosive organic acids, alkali and hydrogen and oxygen compounds, inorganic hydrochloric acid, element gases, alcohols, aldehydes, silicon, ketones and lipids

Natural rubber (grade Q)

≤100℃

It is used to purify water, inorganic salt, dilute inorganic acid, etc.

Fluoroplastic

(FEP)

≤120℃

?? Various concentrations of sulfuric acid, hydrofluoric acid, nitric acid, aqua regia, high temperature of all kinds of organic acid and alkali, strong oxidant, concentrated and dilute acid alternating, acid-base alternate and organic solvents and other corrosive fluid

(PTFE)

≤120℃

(PFA)

≤150℃


Lining material (code name)

Applicable temperature

Suitable?

Poly (ethylene propylene glycol) (FEP)

≤150℃

?? In addition to molten alkali metal fluoride and aromatic hydrocarbons and hydrochloric acid, sulfuric acid, aqua regia, organic acid, strong oxidizing agent, alternately, concentrated and dilute acid and various organic solvents such as acid-base alternate
The valve is used for high temperature (> 100 DEG) concentrated nitric acid (to 100%), chlorine sulfonic acid, new ecological fluorine gas and some solvents (such as aromatic hydrocarbon), and the plastic lining has swelling phenomenon, so it should be avoided in the above medium

Poly (vinylidene fluoride) (PVDF)

≤100℃

Polytetrafluoroethylene (PTFE) and ethylene copolymer (PTFE)

≤120℃

Soluble polytetrafluoroethylene (PFA)

≤180℃

Acid proof enamel

≤100℃

?? General corrosive fluid except hydrofluoric acid, concentrated phosphoric acid, alkali and (temperature change not allowed)