What to do if operating medium escapes from fill head outlet (liquid channel) in AS Laboratory Equipment?
If operating medium escapes from the fill head outlet, it could be due to several reasons. First, check for any contaminations or deposits in the valve and clean or rinse the fill head. Another possible cause is excessive pressure from the liquid column above the valve. Try reducing the vertical liquid column above the fill head.
Why does AS QC2 container builds excessive pressure during operation?
Excessive pressure during operation or when the system is stopped may be caused by a closed ventilation connection of the fill head or a blocked ventilation line. Check and clear the entire ventilation line, and replace the particle filter or valves if needed. Inadequate container ventilation to achieve complete pressure equalization can also be a reason. Try reducing the filling flow rate of the operating medium, increasing the nominal diameter, or shortening the length of the ventilation line.
What to do if AS Laboratory Equipment container contracts when the system is stopped?
If the container contracts when the system is stopped, it may be because the ventilation line is connected to a suction system, creating excessive negative pressure. Take precautions on the system side to prevent negative pressure, such as reducing the negative pressure in the extraction system.
General| Brand | AS |
|---|---|
| Model | QC2 Series |
| Category | Laboratory Equipment |
| Language | English |
Provides legal disclaimers, copyright, and contact details for AS Strömungstechnik GmbH.
Overview of the operating instructions, their validity, and purpose.
Explains typographical conventions and provides guidance on handling instructions.
Defines DANGER, WARNING, CAUTION, and NOTE symbols used for hazards and situations.
States copyright ownership and disclaims liability for information accuracy or changes.
Covers liability for product handling, customer responsibility, and service availability.
Defines the specific applications and chemical compatibility for QC2 and G-Series fill heads.
Clarifies inappropriate usage and outlines the operator's responsibility for safety.
Provides essential safety instructions for handling chemicals and using the products.
Lists available fill head types (DH-R, GH-R, DH-B, etc.) and their key features.
Explains that different fill head versions can be combined for enhanced functionality.
Describes fill head equipment, flow rate control via valves, and check valve operation.
Details electrically conductive versions for flammables and warns about static charge risks.
Lists and describes auxiliary tools like docking stations and universal bung wrenches.
Details dimensions, weight, torque, flow rates, and opening pressure for DH-R/GH-R series.
Lists materials used for wetted and non-wetted components of the fill heads.
Details various connection options for liquid and gas lines.
Provides specifications for DH-B/GH-B fill heads including dimensions, torque, and flow rates.
Lists materials for wetted, non-wetted components, and release pins for DH-B/GH-B.
Details connection types for liquid and gas for DH-B/GH-B fill heads.
Presents specifications for DH-A/GH-A fill heads including flow rates and period of use.
Lists material variants for wetted, non-wetted components, and ball valves for DH-A/GH-A.
Details liquid and gas connection types for DH-A/GH-A fill heads.
Details specifications for DH-N2/GH-N2 fill heads, including N2 connection and vent port.
Lists materials for wetted, non-wetted components, and N2 tube for DH-N2/GH-N2.
Details liquid, gas, and N2 connection types for DH-N2/GH-N2 fill heads.
Provides specifications for DH-U/GH-U fill heads, including sensor and vent port details.
Lists materials for wetted and non-wetted components for DH-U/GH-U fill heads.
Details liquid and gas connection types for DH-U/GH-U fill heads.
Details specifications for DH-J/GH-J fill heads, including mixing nozzle and flow rates.
Lists materials for wetted and non-wetted components for DH-J/GH-J fill heads.
Details liquid and gas connection types for DH-J/GH-J fill heads.
Specifies temperature limits for different housing materials in ambient and operating conditions.
Provides required torque values for S/V and T/W type dip tube closures for QC2 and G-Series.
Outlines the initial commissioning process, emphasizing cleanliness and system setup.
Instructions for connecting ventilation lines and checking container inerting with nitrogen.
Details mounting the fill head and conducting test runs to check system integrity.
Recommends checking chemical resistance and inspecting the fill head for damage.
Guides on using the first product liters for conditioning and testing overfilling sensors.
Checks chemical identity via label/barcode and ensures a dust-free environment.
Conducts visual checks for contamination, damage, and proper connection tightness.
Verifies o-rings, locking pin, code disk, and matching pins for integrity and correct coding.
Checks the limit switch release pin and ensures proper grounding for conductive fill heads.
Confirms overfilling sensor operation and clear ventilation channel for unobstructed medium escape.
Details removing the tamper-proof cap and its associated seal from the dip tube closure.
Explains safely opening pressurized closures using a bung wrench and handling escaping gases.
Guides on removing the fill head, checking shut-off valves, wetting the o-ring, and inserting.
Instructs on aligning the code disk with orientation pins and pressing it into the dip tube recess.
Details using a torque tool, checking fill head mounting, and pressing the anti-rotation clip.
Ensures the code disk lies flat and re-checks the head's insertion and tightening.
Ensures minimal vibrations, proper grounding for conductive heads, and correct mounting.
Instructs to open the manual shut-off valve and commence operation.
Checks flow rate to prevent pressure issues and visually confirms constant flow and container integrity.
Monitors for system vibrations and conducts visual inspections for leaks or damage.
Addresses excessive container pressure due to blocked ventilation lines or insufficient equalization.
Explains causes of container contraction from negative pressure via suction systems.
Covers issues with fill head screwing caused by damaged threads on dip tube or fill head.
Addresses leaks from the fill head outlet due to contamination or damaged valve components.
Provides initial steps for safe disassembly, ensuring no positive pressure and closing shut-off valves.
Details removing the fill head, cleaning, and preparing the dip tube closure for sealing.
Explains closing the container by tightening the dip tube closure using a bung and torque wrench.
Provides instructions for flushing and cleaning the fill head's liquid channel and exterior.
Lists monthly checks for fill head components like check valves, o-rings, and conductivity.
Outlines steps for returning fill heads, including disassembly, cleaning, and decontamination certificates.
Provides guidelines for proper disposal of fill head parts in compliance with regulations.
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