PULSAtron L3300H01-PVC Bleed Valve Assembly

The PULSAtron L3300H01-PVC is a bleed valve assembly designed for compatible PULSAtron chemical metering pumps. The valve provides a controlled path for releasing trapped air and returning chemical during pump priming and liquid-end servicing.

This configuration features PVC construction, Hypalon/CSPE components and 3/8-inch OD tubing connections. Pulsafeeder replacement-parts documentation identifies L3300H01-PVC specifically as a bleed valve rather than a suction or discharge valve.

L3300H01-PVC Product Configuration

• Part Number: L3300H01-PVC
• Product Type: Bleed Valve Assembly
• Product Family: PULSAtron
• Body Material: PVC
• Elastomer Material: Hypalon / CSPE
• Connection Type: OD Tubing
• Connection Size: 3/8 Inch

Designed for Pump Priming

Air trapped inside a chemical metering pump head can interfere with proper priming. The L3300H01-PVC bleed valve provides a controlled route for releasing air and fluid from the liquid end while the pump is being primed.

This allows the operator to establish a continuous chemical path through the pump before returning the valve to its normal operating position.

PVC & Hypalon Construction

The L3300H01-PVC uses PVC and Hypalon/CSPE materials in its documented construction. These materials are used in compatible PULSAtron wet-end configurations for chemical feed applications.

Chemical compatibility should always be confirmed against the actual chemical, concentration, temperature and operating conditions before installation.

3/8-Inch OD Connections

This version of the PULSAtron bleed valve is configured with 3/8-inch OD tubing connections. This is an important distinction because similar PULSAtron bleed valve assemblies are available with other connection sizes.

For example, L3300H03-PVC is separately identified in PULSAtron parts catalogs as the 1/2-inch OD bleed valve configuration.

Compatible PULSAtron Wet Ends

Current Pulsafeeder replacement-parts documentation identifies the L3300H01-PVC for multiple compatible PULSAtron wet-end configurations, including:

• VHC3
• VHC5
• VHCA
• VHCF
• VHH3
• VHS3
• VHS5
• VHSA
• VHSE
• VHT3
• VHTA
• WHC3
• WHC5
• WHH3
• WHS3

Role in the Pump Liquid End

The bleed valve works alongside the suction and discharge check valves but performs a different function. The suction and discharge valves control one-direction chemical flow during normal pumping, while the bleed valve provides a controlled path for removing air and fluid during priming or servicing.

When to Inspect the Bleed Valve

• Pump is difficult to prime
• Air remains trapped in the liquid end
• Chemical leaks around the bleed valve
• The valve does not open or close smoothly
• Sealing components show chemical deterioration
• Liquid-end components are undergoing preventive maintenance

Maintenance Benefits

A properly operating bleed valve can make pump priming easier and helps provide controlled handling of chemical and trapped air during maintenance. Inspect the valve and its sealing components whenever the pump liquid end is serviced.

Selection Note

L3300H01-PVC is the 3/8-inch OD bleed valve assembly. Confirm the complete pump model, wet-end configuration, tubing size and chemical compatibility before replacing the existing valve.