PULSAtron K2VHC1 PVC/CSPE KOPkit

Keep compatible PULSAtron chemical metering pumps operating with the PULSAtron K2VHC1 KOPkit. This manufacturer-specified maintenance kit is configured for size 2 pumps equipped with the VHC1 liquid end.

The K2VHC1 uses a PVC pump head, CSPE/Hypalon valve sealing components and ceramic valve components. Its tubing arrangement is 0.25-inch ID x 0.38-inch OD, making it a 3/8-inch OD tubing configuration.

Understanding the K2VHC1 Configuration

PULSAtron identifies this replacement kit in its catalog as KOPKIT K2 PVC/HYP/C .38T. This designation provides the key information needed to distinguish K2VHC1 from other size 2 KOPkits.

• Part Number: K2VHC1
• Service Kit: PULSAtron KOPkit
• Pump Head Size: 2
• Wet-End Code: VHC1
• Head Material: PVC
• Seat / O-Ring Material: CSPE / Hypalon
• Valve Component: Ceramic
• Tubing: 0.25-Inch ID x 0.38-Inch OD
• OD Connection: 3/8 Inch

PVC & CSPE Liquid-End Combination

The VHC1 material configuration combines a PVC pump head with CSPE sealing components. Older and current parts references may describe the elastomer as Hypalon; current replacement-parts terminology commonly identifies the material as CSPE.

This combination is used in compatible PULSAtron chemical metering applications. Chemical compatibility must be checked against the actual solution, concentration and operating temperature before installation.

Ceramic Valve Components

The K2VHC1 configuration uses ceramic valve components in the liquid-end check-valve system. Check valves control the direction of chemical movement as the diaphragm alternates between suction and discharge strokes.

Clean valve components and intact seating surfaces are important for maintaining reliable priming and repeatable chemical delivery.

What Comes in a PULSAtron KOPkit?

PULSAtron KOPkits are intended to provide the primary components required to service the pump liquid end. Published KOPkit documentation identifies the following service components:

• Discharge valve assembly
• Pump head
• Pump-head screws and washers
• Suction valve assembly
• Diaphragm
• Deflection plate
• Shims
• Secondary seal
• Degassing valve assembly when applicable to a degas model

Manufacturer packaging can change, so current kit contents should be confirmed when ordering.

Matched Components for VHC1 Pumps

The advantage of using the K2VHC1 KOPkit is that its service components are selected for the VHC1 wet-end configuration. This helps avoid mixing seals, valves or head components intended for another PULSAtron liquid end.

The KOPkit number is normally identified in PULSAtron pump documentation and may also be stamped on the pump nameplate.

3/8-Inch OD Tubing

K2VHC1 is designed around 0.25-inch ID x 0.38-inch OD tubing. Parts catalogs may abbreviate this as .38T or simply describe the product as having a 3/8-inch tubing connection.

Both the wet-end code and tubing dimensions should be checked before replacing the liquid-end components.

Verified VHC1 Pump Application

One documented PULSAtron application is:

• LPA2SA-VHC1-XXX — PULSAtron Series E+ metering pump
• LC02SA-VHC1-XXX — PULSAtron Series C metering pump

For example, manufacturer-based pump data for LPA2SA-VHC1-XXX specifies PVC head fittings, CSPE seats and O-rings, ceramic valve components, a 0.25-inch x 0.38-inch connection and K2VHC1 as the corresponding KOPkit.

When to Consider Liquid-End Maintenance

Components in a chemical metering pump liquid end are exposed to repeated diaphragm movement and continuous chemical contact. Inspection or replacement may be appropriate when operating behavior changes.

• Pump becomes difficult to prime
• Chemical output becomes inconsistent
• Pump loses prime unexpectedly
• Valve components contain deposits
• Sealing components show chemical or mechanical deterioration
• Diaphragm replacement is due
• Scheduled preventive maintenance has been reached

Correct Replacement Matters

Not every size 2 PULSAtron KOPkit is interchangeable. For example, other size 2 configurations can use PTFE rather than CSPE seats, PVDF rather than PVC heads, or different valve arrangements.

K2VHC1 should therefore be selected by the complete KOPkit or VHC1 designation rather than by head size alone.

Before Installation

Confirm the pump nameplate or specification sheet calls for K2VHC1. Also verify the PVC / CSPE / ceramic configuration, 3/8-inch OD tubing size and chemical compatibility before servicing the pump.