Pall 1235 Anodized Aluminum Filter Holder User Manual

1. Product Overview

The Pall 1235 Anodized Aluminum Filter Holder is a lightweight, non-sterile, in-line lab filter holder designed for efficient liquid or gas filtration. Its convenient design allows for opening and closing without disrupting the membrane, making it suitable for various laboratory applications, including stack sampling. This durable filter holder is constructed from high-quality materials to ensure reliable performance.

Figure 1: Pall 1235 Anodized Aluminum Filter Holders, showcasing different sizes of the product.

2. Setup

Before initial use, ensure all components are clean and free from debris. The filter holder is provided non-sterile and may be autoclaved if desired (refer to Section 4 for sterilization details).

To assemble the filter holder:

1. Carefully separate the inlet cover, base, and collar cap.
2. Insert the desired 47 mm filter membrane onto the support screen.
3. Reassemble the components, ensuring the O-ring is properly seated to create a secure seal.
4. Connect tubing to the inlet and outlet connections. The filter holder features 3⁄8 in. FNPT connections, and includes hose barb adapters that accept 6.4 mm (1⁄4 in.) ID tubing.

Figure 2: Disassembled components of the Pall 1235 Filter Holder, showing the inlet cover, base, collar cap, and internal parts.

3. Operating Instructions

The Pall 1235 Filter Holder is designed for in-line liquid or gas filtration. Observe the following operating parameters:

• Maximum Operating Pressure: 14 bar (1400 kPa, 200 psi). Do not exceed this pressure to prevent damage to the filter holder or membrane.
• Maximum Operating Temperature: The maximum operating temperature is limited by the type of filter membrane used, the hose barb adapters (up to 93 °C / 199 °F), or the O-ring (up to 204 °C / 399 °F). Always consider the lowest temperature limit of all components in the system.

Ensure proper flow direction as indicated on the filter holder, if applicable, for optimal filtration performance.

4. Maintenance

The Pall 1235 Filter Holder is provided non-sterile. For sterilization, it is autoclavable under the following conditions:

• Temperature: 121 - 123 °C (250 - 253 °F)
• Pressure: 1.0 bar (100 kPa, 15 psi)
• Duration: 15 - 20 minutes

Regularly inspect the O-ring for signs of wear or damage and replace if necessary to maintain a proper seal. Clean the anodized aluminum components with appropriate laboratory cleaning agents that are compatible with aluminum.

5. Troubleshooting

If you experience issues with the filter holder, consider the following common points:

• Leakage: Check that the O-ring is correctly seated and not damaged. Ensure all components are securely tightened. Verify that the operating pressure does not exceed the maximum limit.
• Reduced Flow: This typically indicates a clogged filter membrane. Replace the membrane. Ensure the correct pore size and type of membrane are used for your application.
• Difficulty Assembling: Ensure all parts are clean and aligned correctly. Do not force components together.

For persistent issues, refer to the detailed specifications or contact Pall customer support.

6. Specifications

7. Warranty and Support

For information regarding product warranty, technical support, or service, please contact Pall directly. Contact details can typically be found on the manufacturer's official website or through your authorized distributor.