Constant Flow Syringes, DN Series
Provides a constant flow rate from solution reservoirs regardless of varying solution height.
- A simple design that's easy to use
- Maintains constant head pressure from multiple solution reservoirs
- Uses ordinary gravity feed for smooth, pulse free flow
- Does not require bulky pressure systems or regulators
- Enables reproducible flow rates
- Compatible with Warner's modular syringe holders
- Can be used with Warner's FR-50 flow valve
A common difficulty facing researchers when using a perfusion system is maintaining a constant rate of solution flow as the reservoir empties. In general, since head pressure is a linear function of column height, the change in volume of a 60 cc syringe as the solution reservoir drains can result in a 20% decrease in flow rate.
Warner Instruments is pleased to introduce a simple and unique solution to this common problem. The new DN Series Constant Flow Syringes virtually eliminate changes in flow rate, normally to less than 1%. These reservoirs are designed to maintain a constant pressure on the syringe contents without resorting to a complex or bulky apparatus.
When used in conjunction with Warner's FR-50 Solution Flow Valve, precise,
sub-maximal flow control is easily achieved. Syringe reservoirs may be refilled without interrupting solution flow. Reservoirs are available in 5 to 60 cc volumes and can be used with Warner's MSH Series Modular Syringe Holder System.
|Syringe Size Metric||5 cc||10 cc||20 cc||30 cc||10 cc||20 cc||60 cc||140 cc||10 cc||20 cc||60 cc||140 cc|
|DN Syringe||MSH Base Holder||MSH Side Holders|
|Working Volume||Model No.||Order No.||Holding Syringe Size||Base Holder||Order No.||Side Holder||Order No.|
|5 cc||DN/5||64-0157||10 cc||MSH/10M||64-0146||MSH/10||64-0152|
|10 cc||DN/10||64-0158||20 cc||MSH/20M||64-0147||MSH/20||64-0153|
|20 cc||DN/20M||64-0159||60 cc||MSH/60M||64-0149||MSH/60||64-0155|
|30 cc||DN/30M||64-0160||60 cc||MSH/60M||64-0149||MSH/60||64-0155|
|60 cc||DN/60M||64-0161||140 cc||MSH/140M||64-0150||MSH/140||64-0156|