The PrimeLine In-Line check valve incorporates many of the innovations of our HPLC self-priming replacement check valves. It is a rapid-closure cartridge valve that features very low resistance to flow, low internal volume, and operates independently of gravity. It features crush-proof construction. The valve may be used whenever flow needs to be restricted to one direction. Applications include prevention of post column derivatization fluids from back-flowing into the column in the event of mobile phase pump failure.
1/8" ball cartridge is protected from solvent contamination by a .250" diameter x .062" thickness 10 micron frit. If you see a large pressure drop across the valve with 1/8" ball cartridge version when you run at a very high flow rates, for example at 100 mL/min., please contact us for the solution.
The suggested compatible fittings: IDEX LT-215/LT-200.
This in-line CV is available for Acetonitrile-resistant version. High Temperature version that will operate at up to 200°C at 5,000 PSI is available. Link to High Temperature Version
Replacement cartridges are available below:
P/N: 250-2006/ACN (1/8" ball replacement cartridge)
P/N: 250-2007/ACN (3/16" ball replacement cartridge)
In-Line Check Valve, 3/16" & 1/8" Ball Cartridge with 5/16-24 CPI
- Specifications:
- Internal Volume:
- 35 µL (1/8" ball cartridge)
- 40 µL (3/16" ball cartridge)
- Cracking Pressure: 1.0 PSI
- Ports size: 5/16-24 CPI (1/8" OD tube)
- Maximum Operating Pressure:
- 15,000 PSI (1/8" ball cartridge)
- 10,000 PSI (3/16" ball cartridge)
- 1/8" ball cartridge: Cv*: 0.005 (Cv* of 1.0 is defined as one gallon per minute of 60°F water resulting from a 1 PSI pressure drop. 1 gallon = 3.785 mL)
- 3/16" ball cartridge: Cv*: 0.02 (Cv* of 1.0 is defined as one gallon per minute of 60°F water resulting from a 1 PSI pressure drop. 1 gallon = 3.785 mL)
- Part Number:
- 250-2126
- Wetted Material:
- 316 Stainless Steel, Teflon (1/8" ball) / Teflon & PEEK (3/16" ball) plus Ball & Seat material you select