Page 140 - GarlockFluidSealing2010

D-22

Maximum Flange Bore

for FLEXSEAL

®

Gaskets

Flange

Size

Pressure Class

(NPS)

75

150

300

400

600

900

1

1500

1

2500

1

/

2

"

Weld-neck

3

/

4

"

Weld-neck only

2

only

2

1"

Weld-neck

1

/

4

"

Slip-on

3

No fanges.

Slip-on

3

No fanges.

only

2

Weld-neck

2

Use Class

Weld-neck

2

Use Class

1

/

2

"

No

600

1500

recommen-

2"

dation

Slip-on

3

Slip-on

3

in

Weld-neck,

2

1

/

2

"

75 lb.

any bore

fanges

Slip-on, Weld-

3"

neck, any bore

Weld-neck with

Standard wall bore

4"

(includes nozzle

4

but

excludes Slip-on)

6"

Weld-neck with

Schedule 10S bore

8"

described in ASME B36.19M

Weld-neck w/

(includes nozzle

4

but

Schedule 60

10"

excludes Slip-on)

bore

Slip-on,

Weld-neck w/

12"

Weld-neck, any bore

Schedule 80

bore

14"

Weld-neck w/

Weld-neck with

Standard wall

16"

Schedule 10 bore

bore

described in ASME B36.10M

(excludes No fanges

18"

(excludes nozzle

4

nozzle and

and Slip-on

5

)

Slip-on)

20"

Weld-neck w/

24"

Sched. 40 bore

Notes:

1. Inner rings should be used for Class 900 gaskets, NPS 24; Class

1500 gaskets, NPS 12 thru NPS 24; and Class 2500 gaskets, NPS 4

thru 12 (see ASME B16.5, 3.2.5). These inner rings may extend into

the pipe bore a maximum of 0.06" (1.5 mm) under the worst combina-

tion or maximum bore, eccentric installation, and additive tolerances.

Purchaser should specify inner ring material.

2. In these sizes the gasket is suitable for a weld-neck fange with a

standard wall bore, if the gasket and the fange are assembled con-

centrically. This also applies to a nozzle. It is the user’s responsibility

to determine if the gasket is satisfactory for the fange of any larger

bore.

3. Gaskets in these sizes are suitable for slip-on fanges only if the

gaskets and fanges are assembled concentrically.

4. A nozzle is a long welded neck; the bore equals the fange NPS.

5. An NPS 24 gasket is suitable for nozzles.

WARNING:

Properties/applications shown throughout this brochure are typical. Your specifc applica-

tion should not be undertaken without independent study and evaluation for suitability.

For specifc application recommendations consult Garlock. Failure to select the proper

sealing products could result in property damage and/or serious personal injury.

Performance data published in this brochure has been developed from feld testing,

customer feld reports and/or in-house testing.

While the utmost care has been used in compiling this brochure, we assume no respon-

sibility for errors. Specifcations subject to change without notice. This edition cancels

all previous issues. Subject to change without notice.