Velocity Edge GX325 Instrukcja Użytkownika Pobierz pdf (Strona 21)

GASKET DATA

Gasket Material Max. Temp.

(

Color Code

EPDM (Full FDA Approved) 300 1 Grey + 1 Red

EPDM (Industrial Grade) 338 1 Grey

EPDM (Partial FDA Approved) 338 3 Grey

EPDM(IR) 1 Grey + 1Green

EPDM(P) Soft 2 Grey + 1 Green

EPDM(S) 2 Grey

EPDM-XH 4 Grey

Fluoroelastomer (Viton) A & G 350 1 Purple

Fluoroelastomer (Viton) B 35 2 Purple

Fluoroelastomer (Viton) FDA Full 1 Purple + 1 Red

Fluoroelastomer (Viton) GF 350 3 Purple

Fluoroelastomer (Viton) GF 04-312 1 Purple + 1 White

Steam grade ﬂ uoroelastomer for GE

test units

4 Purple

Hypalon (CSM) 158 1 Red

NBR (Full FDA Approved) 270 1 Blue + 1 Red

NBR (Hydrogenated) 302 2 Blue

Gasket Material Max. Temp.

(

Color Code

NBR (Industrial Grade) 270 3 Blue

NBR (Partial FDA Approved) 270 1 Blue

NBR LH (Low Hard) 1 Blue + 1 Green

NBR LT (Low Temp) 1 Blue + 1 Yellow

NBR(P) 1 Blue or (1 Blue + 1 White)

NBR(S) No marking

NBR(S) 14-920 1 Blue + 1 Brown

Neoprene (CR) 255 1 Green

PTFE encapsulated EPDM Nothing on the outside (core

EPDM is marked with 1 Grey)

PTFE encapsulated NBR 270 Nothing on the outside (core NBR

is marked with 3 Blue)

R.C. Butyl 1 Yellow

Silastic (Dow) None

Silicone 1 Orange (only if the rubber color

is black)

*This gasket requires the use of .8 mm (.032 in.) thick plate and a special double side tape

instead of Pliobond.

DO NOT OVER TIGHTEN!

Table 7

Temperature Ratings

The above temperatures are the maximum allowable regardless of applications. In some cases, the upper limit may be lower depending

on the ﬂ uids being handled and on the unit design pressure.

Gaskets—Glued

Each plate has a molded one piece boundary gasket which is

glued into the continuous gasket groove in each plate. The liquid

ﬂ owing on the surface of each plate ﬂ ows on the inside of each

boundary gasket.

Every port hole gasket contains four bleed passages. (See Figure

32.) If one of the liquids should leak beyond a boundary gasket,

it will ﬂ ow to the outside of the unit, thus preventing any possible

intermix. (See Figures 31 and 33.)

Figure 31

Flow to exterior from damaged boundary gasket.

Figure 33

Flow to exterior from damaged boundary gasket.

Figure 32

Four bleed passages.

Bleed ports typical

four places

Gasket code

number

Plate

Gasket

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 47 48

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