19
Replacement Orifices
Use these orifices to change the flow range for alternative sampling times. Interchangeable with Veriflo
™
423XL orifices.
Flow
Orifice
Siltek
®
-Treated
Stainless Steel
(sccm)
size
cat.#
cat.#
0.5–2
0.0008"
24219
24218
2–4
0.0012"
24233
24245
4–8
0.0016"
24234
24246
8–20
0.0020"
24235
24247
20–40
0.0030"
24236
24248
40–80
0.0060"
24237
24249
2μm Frit Filters
For use in critical orifice fitting. Includes washers.
Description
qty.
cat.#
Siltek
®
Replacement Frit Filter
3-pk.
24171
Stainless Steel Replacement Frit Filter
3-pk.
24170
Veriflo
™
Flow Controllers
Veriflo
™
423XL flow controllers are offered in a Siltek
®
and a stainless steel version, with or without a crit-
ical orifice. (Vacuum gauge sold separately.) The critical orifice is interchangeable. Order replacement ori-
fices or orifices for alternate sampling times separately.
Flow
Orifice
Siltek
®
-Treated
Stainless Steel
(sccm)
size
cat.#
cat.#
0.5–2
0.0008"
24232
24229
2–4
0.0012"
24255
24260
4–8
0.0016"
24256
24261
8–20
0.0020"
24257
24262
20–40
0.0030"
24258
24263
40–80
0.0060"
24259
24264
—
no orifice
24238
24239
7μm In-Line Filter
This 316 stainless steel filter is designed to collect particles larger than 7 microns. We offer a Siltek
®
version and a stainless steel version.
Description
qty.
cat.#
Siltek
®
7µm In-Line Filter
ea.
24265
Stainless Steel 7µm In-Line Filter
ea.
24266
2-Inch Vacuum Gauge
Restek’s high-quality 2-inch vacuum gauge incorporates 316 stainless steel wetted surfaces.
Description
qty.
cat.#
2-Inch Vacuum Gauge; 1/8" NPT
ea.
24269
2-Inch Vacuum Gauge; 1/4" NPT
ea.
24270
Siltek®
critical orifice
Buy only the parts you need!
Veriflo SC423XL
flow controller
Siltek® tee
High-quality
vacuum gauge
Siltek®
in-line filter
