Clack 2678 WS2H

Summary

Product Identification

• Product Line: Clack Control Valves
• Model: 2678 WS2H (Water Specialist 2" H)
• Certifications: NSF/ANSI 44, 61, and 372

Mechanical / Hydraulic

• Valve Type: 2" top mount or side mount control valve
• Valve Body Material: Epoxy coated lead-free brass
• Inlet/Outlet Connections: 2” Female NPT or BSPT / 2.5” Groove Lock
• Drain Line Connection: 2” Female NPT/BSPT/2.5” Groove Lock
• Brine Line Adapters: 1” Male NPT elbow and ¾” x 1” solvent weld elbow included; ½” or 5⁄8" OD Poly Tube Compression optional adapters.
• Mounting Base: 4" - 8 UN, 6” Flange or Side Mount

Operating Limits

• Service Flow Rate: 125 gpm (473 lpm) (28.4 m³/h) @ 15 psi / 1 bar drop (includes meter)
• Backwash Flow Rate: 125 gpm (473 lpm) (28.4 m³/h) @ 25 psi / 1.7 bar drop
• Cv Service: 32.3
• Cv Backwash: 25.0
• Operating Pressure (Min/Max): 20 - 125 psi (1.4 - 8.6 bar)
• Operating Temperature (Min/Max): 40º - 110º F (4º - 43º C)

Feed Water Compatibility

• Compatible Regenerants/Chemicals: Sodium chloride, potassium chloride, potassium permanganate, sodium bisulfite, chlorine, and chloramines.

Meter Specifications

• Accuracy: ± 5%
• Flow Rate Range: 1.5 - 125 gpm (5.7 - 473 lpm)
• Volume Range: 10 - 999,000 gallons (38 - 3,796.2 liters x1000)
• Totalizer Range: 1,000 - 999,999,000 gallons (3,786 - 3,785,407.9 liters x1000)

Cycles of Operation

• Regeneration Type: Downflow
• Maximum Cycles: Up to 9
• Programmable Cycles: Fully programmable regeneration cycle sequences and times.
• Regeneration Initiation Methods: Meter delayed, meter immediate, time clock delayed, or pressure differential.
• Regenerant Refill: Pre or Post treated water.
• Days Override: 1-28 days available.
• Individual Cycle Ranges:
  • Backwash: 1 - 95 minutes
  • Brine (draw): 1 - 180 minutes
  • Slow Rinse: 1 - 95 minutes
  • Fast Rinse: 1 - 95 minutes
  • Refill: 0.1 - 99 minutes
  • Hold (service): 1 - 480 minutes

Tank Applications

• Water Softener: 18” - 63" Diameter tanks
• Water Filter: 18” - 48" Diameter tanks

Electrical Specifications

• AC Adapter:
  • Supply Voltage: 120V AC (US) / 230V AC (International)
  • Supply Frequency: 60 Hz (US) / 50 Hz (International)
  • Output Voltage: 20V AC
  • Output Current: 750 mA

Dimensions & Weight

• Valve Bodies (2" Female NPT/BSPT): 2.375” OD (2" NPS) / 63mm OD
• Height (from top of tank, with QC Base):
  • 4" - 8 UN QC Base: 11.5” (292mm)
  • 6" Flange QC Base: 11.6” (294.6mm)
• Shipping Weight (with internal meter): 50 lbs (22.7 Kg)

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Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror