345
HPLC ACCESSORIES
Valves, Backpressure Regulators
Valves for HPLC
Our valves have low internal volumes and are rated to 15,000 psi
(103,421 kPa). They feature a 2-piece stem assembly in which the
rotating upper shank is coupled through a ball joint to a static
lower stem. Only fingertight torque is required to make the seal.
In-Line Check Valves for HPLC
Description
qty.
cat.#
price
Two-Way Through Valve for HPLC,
1
/
16
" Fittings,
1/4-28, Stainless Steel, Includes Nuts and Ferrules
ea.
26400
Two-Way Angle Valve for HPLC,
1
/
16
" Fittings,
1/4-28, Stainless Steel, Includes Nuts and Ferrules
ea.
26401
Three-Way Bottom Vent Valve for HPLC,
1
/
16
" Fittings,
1/4-28, Stainless Steel, Includes Nuts and Ferrules
ea.
26402
Side Vent Valve for HPLC,
1
/
16
" Fittings,
1/4-28, Stainless Steel, Includes Nuts and Ferrules
ea.
26403
Dual Stem Three Way Valve for HPLC,
1
/
16
" Fittings,
1/4-28, Stainless Steel, Includes Nuts and Ferrules
ea.
26404
Prime/Purge Valve for HPLC, 1/4-28 Flanged Seat,
Stainless Steel, with Tubing and Fittings
ea.
26406
Prime/Purge Valve Repair Kit for Prime/Purge Valve
kit
26407
26403
26404
26400
26406
26405
Backpressure Regulators
Backpressure regulators can improve detector performance by
preventing bubble formation in the detector flow cell. They also
are useful in post-column reaction lines and between detectors
and fraction collectors in preparatory work. Regulators are supe-
rior to more specific alternative solutions, like small-bore tubing,
in which pressure varies with flow rate.
Our end-of-line and flow-through backpressure regulators are
adjustable to assure constant backpressure over a wide range of
mobile-phase viscosities and flow rates. The end-of-line model is
available with 1/4-28 plastic flange-type fittings or high-pressure
1
/
16
-inch compression fittings; this design adjusts from 15 to 60 psi
(103 to 414 kPa). The flow-through design has
1
/
16
-inch compres-
sion fittings and is adjustable from 7 to 75 psi (48 to 517 kPa).
25017
25018
25020
Description
qty.
cat.#
price
Backpressure Regulator:
end-of-line,
1
/
16
-inch OD tubing, flanged
ea.
25017
Backpressure Regulator: end-of-line, high-pressure seat
ea.
25018
Backpressure Regulator:
flow-through, 5µL internal volume
ea.
25020
NEW!
26417
Description
Max
Pressure qty. cat.#
price
Check Valve, Soft Seat, for HPLC,
1
/
16
" Fittings,
1/4-28, Stainless Steel, Includes Nuts and Ferrules 15,000psi ea. 26405
Check Valve with
1
/
8
" Ball Cartridge,
48µL internal volume
15,000psi ea. 26417
Check Valve Replacement
1
/
8
" Ball Cartridge,
48µL internal volume
15,000psi ea. 26418
UHP Check Valve with
1
/
8
" Ball Cartridge,
48µL internal volume
30,000psi ea. 26419
UHP Check Valve Replacement
1
/
8
" Ball Cartridge,
48µL internal volume
30,000psi ea. 26420
Check Valve with
3
/
16
" Ball Cartridge,
60µL internal volume
15,000psi ea. 26421
Check Valve Replacement
3
/
16
" Ball Cartridge,
60µL internal volume
15,000psi ea. 26422
Website :
E-mail :
TelNo : 03 9762 2034 . . . in AUSTRALIA
Mar 2011
