Clack WS1.5P Water Softener Control Valve

Name: Clack WS1.5P Water Softener Control Valve - Robert B Hill Co
Brand: Pentair
Availability: InStock

The Clack WS1.5P is a 1.5-inch top-mount control valve designed for mid-size commercial and light-industrial water-treatment systems. Its body is molded from durable glass-filled composite, resisting corrosion while keeping the valve lightweight. An economical plastic meter assembly is available when budget or fluid chemistry rules out metal.

In operation, the WS1.5P delivers up to 60 gpm (227 lpm, 13.6 m³/h) of service flow and handles backwash rates to 43 gpm (163 lpm, 9.8 m³/h), giving ample headroom for softening, filtration, or process-water duties. The valve can be converted in the field between upflow and downflow brining, so installers can match any regeneration strategy without stocking separate models.

Available Sizes:

1.5” Male NPT

Product Features

Solid state microprocessor with easy access front panel settings

Front panel display for time of day, days until next regeneration, volume remaining and current flow rate

Four methods to initiate a regeneration; meter immediate, meter delayed, time clock delayed or pressure differential

Program in ppm, French degrees, German degrees, or cubic meters

Fully programmable regeneration cycle sequence (maximum 9)

Programmable regeneration cycle times

Days override feature; 1-28 days available

Level VI 15-volt output DC power supply provides safe and easy installation

Pre or Post treated water regenerant refill

Low salt alarm

Coin cell lithium battery backup for time of day up to 24 hours

One piece expanding seal spacer stack assembly

Linearly reciprocating piston operation

Reliable and proven DC drive

Additional Information

Manufacturer: Clack
Model Number: WS1.5P
Availability: In Stock

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Product Information

Valve Specifications

Valve Material	Glass-filled composite
Inlet/Outlet	1.5″ Male NPT or BSPT (valve bodies accept 1.5″ female threads)
Weight	9 lb (4.1 kg) shipping
Operating Pressures	20 – 125 psi
Hydrostatic Test Pressure	N/A
Water Temperature	40° – 110° F

Flow Rates

Service 15 psi drop	60 gpm
Backwash 25psi drop	43 gpm
Service	Cv ≈ 15.5
Backwash	Cv ≈ 8.6

Dimensions

Width	N/A
Height	10 ¾″ (274 mm)
Riser Tube Dia.	1.90″ OD (1.5″ NPS) or 50 mm OD
Riser Height	2.25″ – 2.5″ above tank top (± 0.5″)
Height From Top of Tank	10 ¾″