Rheodyne Model 9725i PEEK Injector

5000 INR/Piece

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Product Details:

Automation Grade Manual
Temperature Range Ambient Temperature operation
Capacity 20 L (standard loop); optional: 5, 10, 50, 100, 200 L loops available
Core Components Rotor seal, stator, needle port, PEEK fittings
Accuracy High sample accuracy for reproducible injections
Power Source Manual, no external power required
Feature Zero sample loss, biocompatible, high chemical resistance, leak-free operation
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Rheodyne Model 9725i PEEK Injector Price And Quantity

Minimum Order Quantity 1 Piece
Price 5000 INR/Piece

Rheodyne Model 9725i PEEK Injector Product Specifications

Dimension (L*W*H) Approx. 72 mm 64 mm 98 mm
Accuracy High sample accuracy for reproducible injections
Core Components Rotor seal, stator, needle port, PEEK fittings
Equipment Materials PEEK (polyether ether ketone) wetted parts, stainless steel construction
Capacity 20 L (standard loop); optional: 5, 10, 50, 100, 200 L loops available
Temperature Range Ambient Temperature operation
Automation Grade Manual
Weight Approx. 450 grams
Model No 9725i
Type Manual Rheodyne Injector
Measurement Range Varies with injection loop (5 L to 200 L)
Usage For analytical and semi-preparative HPLC sample injection
Display Type Manual (no digital display)
Feature Zero sample loss, biocompatible, high chemical resistance, leak-free operation
Power Source Manual, no external power required

Rheodyne Model 9725i PEEK Injector Trade Information

Supply Ability 5-10 Piece piece Per Month
Delivery Time 6-8 Week
Main Export Market(s) Western Europe, Australia, North America, Eastern Europe, Middle East, Central America, South America, Asia, Africa
Main Domestic Market All India
Certifications ISO 9001:2015 CERTIFIED

Product Description

General description

The 9725i contains a switch and has the make before break (MBB). With the MBB, flow is not interupted when switching from laod to inject.

For Use With (Equipment)	HPLC
Type	Continuous Flow, Dual Mode
Volume (Metric) Sample	20 L
Description	Dual mode; Continuous Flow; Position Sensing Switch

Properties

material	PEEK injector
feature	manual
	manual; with MBB and switch
	number of ports 6
	number of positions 2
mfr. no.	Rheodyne 9725I
parameter	5000 psi max. pressure
fitting	10-32 Rheodyne thread

Precision and Compatibility

Engineered for both analytical and semi-preparative HPLC, the Rheodyne 9725i ensures high sample accuracy and robust reliability under pressures of up to 4000 psi. It offers compatibility with standard 1/16 OD HPLC tubing and finger-tight PEEK fittings, making it adaptable for a variety of laboratory setups requiring leak-free, biocompatible performance.

Flexible Sample Loading Options

The injector supports both full and partial loop filling, with a standard loop capacity of 20 L and optional loops ranging from 5 to 200 L. This allows users to tailor their sample volume to the needs of their analytical workflow, enhancing flexibility for different application requirements.

Durable, User-Friendly Design

Constructed with PEEK wetted parts and stainless steel elements, the 9725i is lightweight, highly chemical-resistant, and easy to disassemble for routine cleaning. Its manual operation eliminates reliance on external power sources, while its long cycle life (>20,000 cycles) ensures cost-effective, dependable service in demanding environments.

FAQs of Rheodyne Model 9725i PEEK Injector:

Q: How do I install the Rheodyne 9725i PEEK Injector in my HPLC system?

A: To install the Rheodyne 9725i, connect the injector using standard 1/16" OD HPLC tubing and compatible finger-tight PEEK fittings. Ensure alignment of the six ports with your desired application (inject/load configuration) before mounting onto your instrument panel.

Q: What is the recommended process for cleaning and maintaining the injector?

A: Regular cleaning is straightforward, as the 9725i is easily disassembled. Flush the valve with compatible solvents after use and periodically clean or replace the rotor seal and stator to maintain optimal performance and extend the valves cycle life.

Q: When should I consider replacing the injection loop or rotor seal?

A: Replace the injection loop if you notice blockages, leakage, or wish to use a different sample volume. The rotor seal typically lasts over 20,000 cycles, but should be replaced if you encounter increased leakage or inconsistent sample injection.

Q: Where can I use the 9725i injector and what applications is it ideally suited for?

A: The 9725i is best used in analytical and semi-preparative HPLC applications requiring biocompatibility and high chemical resistance. Its versatility and durable design make it suitable for pharmaceutical, biotech, and research laboratories.

Q: What are the usage benefits of the PEEK construction in this injector?

A: PEEK construction provides excellent chemical resistance, biocompatibility, and non-metallic wetted surfaces, minimizing sample contamination and enabling use with a wide range of solvents and biological samples.

Q: How accurate and reproducible are sample injections using the Model 9725i?

A: The injector is engineered for high accuracy and reproducibility, with zero sample loss and precise flow path design. Proper maintenance ensures each injection remains consistent, providing reliable results for sensitive analyses.

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