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AqMatic 1 Special Valve K521-X2SX-77675 Solenoid Valve Assembly

AquaMatic K521-X2SX-77675 – 1 Inch Special Valve – Special Solenoid – BUNA/BUNA/Hycar

The AqMatic K521-X2SX-77675 is a 1-inch thermoplastic diaphragm valve with a special solenoid configuration, built for systems that require non-standard control behavior and custom integration.

This model is part of the K521 series, designed for corrosion-resistant flow control in water treatment, filtration, and chemical processing environments. The X2SX designation indicates a custom valve configuration, often including modified porting, drilled and tapped bosses, and a non-standard solenoid setup to match specific system requirements or legacy equipment.

The valve uses a Buna diaphragm with Buna and Hycar elastomer components, supporting compatibility in applications where standard elastomer combinations may not perform as required. The thermoplastic body construction is suited for systems where metal valves are prone to corrosion or chemical degradation.

This valve is typically deployed in automated systems using stagers and stager controls, where solenoid-driven pilot control is required. It may also be used alongside V42 diaphragm valves depending on system design.

$259.28

PVC Union End Connector Kits

Available in ASTM (American), ISO (Metric), or JIS (Japanese) pipe standards. Designed to have PVC pipe glued directly into them. Union end connector kits consist of two each of the sockets and connecting hardware. One kit is needed per valve.

Hardware Kits for Grooved Adapters

A grooved adapter kit includes two each of the grooved adapters. It is also necessary to specify the appropriate hardware kit containing two Retaining Rings, two Retaining Nuts, and two O-rings if using Grooved adapter.

Grooved Adapter Kits

Expedite (5 Days to ship)

Only choose this option if you have talked to an agent who said it is available.

Product price: $259.28
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Description

Model Number SKU
K521-X2SX-77675 3030056
Pipe Size Connectors
1 Inch None
Configuration Diaphragm, Seals & Disc
Special Valve BUNA N Diaphragm, BUNA N Seals & Hycar Discs
Internal Parts Bosses Drilled & Tapped
Special Order Boss #1, & 2
Solenoid / Float? Solenoid & Float Options
Solenoid Valve Special Solenoid Configuration
Solenoid Features Float Features
Special Solenoid Configuration

Key Features & Benefits

  • 1-inch K521 thermoplastic diaphragm valve designed for corrosion-resistant applications
  • X2SX special configuration supports custom system layouts and non-standard control requirements
  • Special solenoid configuration enables integration into systems requiring unique actuation behavior
  • Buna diaphragm with Buna and Hycar elastomers for compatibility across water and select chemical applications
  • Thermoplastic construction reduces risk of corrosion compared to metal valve alternatives
  • Suitable for filtration, softening, and chemical processing systems with custom control requirements
  • Can be integrated with stagers and stager controls for automated operation
  • Serviceable inline with replaceable internal components, minimizing downtime

Additional information

Weight 3 lbs
Dimensions 8 × 6 × 4 in