Pulsafeeder J30518 PVC/PTFE Bleed Valve Kit - 1/2-Inch
PVC/PTFE bleed valve kit with 1/2-inch tubing connection, listed for CHEM-TECH Series 100, 150, 100D, 150D and 200 replacement-parts applications. Supports controlled air venting during pump priming.
Pulsafeeder J30518 PVC/PTFE Bleed Valve Kit
The Pulsafeeder J30518 is a 1/2-inch PVC/PTFE bleed valve kit identified in CHEM-TECH chemical metering pump replacement-parts schedules. It is designed for servicing compatible pump liquid-end air-bleeding arrangements and is distinguished by its PVC body and TFE/PTFE sealing configuration.
Supporting Chemical Metering Pump Priming
Air trapped inside the pump liquid end may interfere with the establishment of normal chemical flow. A bleed valve provides a designated venting path during the manufacturer-recommended priming procedure. The valve must be operated and closed according to the applicable pump instructions.
Manufacturer Product Specifications
- Manufacturer: Pulsafeeder
- Part Number: J30518
- Product Type: Bleed Valve Kit
- Body Material: PVC
- Sealing Designation: TFE / PTFE
- Nominal Tubing Size: 1/2 Inch
- Catalog Family: CHEM-TECH Series 100, 150, 100D, 150D and 200 Parts
- Detailed Kit Contents: Confirm with Original Parts Documentation
Why PTFE Sealing Matters
The PTFE configuration differentiates J30518 from J30517, a PVC/Viton bleed valve kit with the same nominal tubing size. Although both are identified as 1/2-inch bleed valve kits, the sealing materials are different and must be selected according to the original pump specification.
Connection and Equipment Selection
Confirm the original bleed valve part number, tubing dimension and CHEM-TECH liquid-end arrangement. A smaller 3/8-inch bleed valve kit should not be substituted simply because its housing appears similar.
Maintenance and Inspection
Inspect the valve for chemical deposits, leakage, damaged tubing fittings and deterioration of sealing components. Restricted bleed connections may interfere with the intended priming procedure.
Installation Precautions
Disconnect electrical power, isolate the chemical supply and relieve system pressure before opening the liquid end. Follow the manufacturer service manual for assembly and priming instructions.
Ordering Information
Specify Pulsafeeder J30518 for a compatible CHEM-TECH pump requiring the PVC/PTFE bleed valve kit with a 1/2-inch tubing connection.
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