Efficient means of lifting large quantities of water or wastewater at low heads.
Walchem pump electrical input/output connectors
Chemically resistant polyethylene tubing for a variety of applications including chlorine, hydrochloric acid, caustic soda etc. 1/4", 3/8" and 1/2" Outside Diameter sizes available in Low Density (LDPE), Linear Low Density (LLDPE) and High Density (HDPE) types.
Injection valves are used at the discharge side of the pump, at the end of the tubing or pipe run where the chemical is injected into the water flow. They prevent back flow of water and/or chemical.
Vinyl tubing with .062" thick wall. This tubing is flexible and is an economical solution for many pump applications including Stenner's peristaltic pumps.
Clear PVC Calibration Cylinders.
Walchem pump discharge valves. Auto Air Vent, Manual Air Vent or Multifunction Valves.
Polypropylene Calibration Cylinders.
Mounting Brackets for Walchem metering pumps. Wall mounting for E Series pumps, and a mounting base for LK Series pumps.
Suction Tube Shield Assembly. 32" long x 1¼" diameter Sch 40 pipe to hold chemical feed pump tubing in place in a tank with a mixer.
Used to prevent backflow in a chemical injection line or small process line
Automatic degassing valves, CPVC/Viton.
A&F Calibration Cylinders are often used with metering pumps to ensure discharge rates meet the set volume or specification.
PTFE (Teflon) tubing is the most chemically resistant tubing available. It is chemically inert, has low permeability and has the widest temperature range of any tubing, making it ideal for use with food processing or with harsh chemicals.
The one disadvantage of this tubing is that it has low abrasion resistance.
It is translucent white and comes in 1/4", 3/8" and 1/2" (outside diameter) sizes in lengths of 25', 50', 100' and 500' (for the 3/8" and 1/2" sizes). The tubing wall thickness is 0.062".
Cycle Timers are cycle repeater controls that will repeat the selected time cycles as long as power is applied.
They are built with an aluminum enclosure and are recommended for indoor use only.
PosiFlow and Flow Checker flow verification sensors for Walchem metering pumps.
Kynar (PVDF) tubing, .062" wall. Available in 50' or 100' lengths and with 3/8" OD or 1/2" OD. Kynar tubing has high chemical resistance and is used in the most demanding applications where other tubing will fail.
Whereas polyethylene tubing is more economical and should be used when compatible with the product being pumped simply for its cost savings.
Graduated cylinders are a must for accurate calibration of positive displacement pumps. The graduated cylinder is piped into the suction side of the pump and through the supplied valves that the pump draws from; either the supply tank or the draw down cylinder. The cylinder is made from polypropylene and the valves and interconnecting piping are PVC. The larger graduated cylinders are supplied with a SS support stand and the cylinder is clamped to the stand.
Glass Calibration Cylinders.
Walchem's EZ pumps possess the following features:
These pumps are more precise than their tube/peristaltic pump counterparts and have better repeatability as well. The diaphragms are Teflon® faced and are therefore compatible with many chemicals.
Walchem LK Series pump motor adapter kit from 42C to 56C frame.
There are also models of the EWN-R series pump suitable for high viscosity fluids on our Walchem HV Series Diaphragm Metering Pump page.
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