Praher K6 Wafer Check Valves

Valves have a self-cleaning disc design with contoured inlet and improved disc seating (sealing) characteristics. Valves have a flooded disc hinge pin pocket for improved life cycle performance in contaminated fluids. Valves have a round body design with incorporated notches for flange bolt alignment and incorporated valve lifting eyelet with flow direction arrow. Features include engineered and molded with an improved hinge and spring design, enhanced flow rates, an easy spring installation without any special tool requirements, new disc design with a conical sealing surface for highest reliability and maximum operating cycles. The flooded flapper hinge pins avoid sediment build-up, and it has a cylindrically embedded flapper hinge pin for optimal stress absorption. It has an integrated installation lifting eyelet with FLOW ARROW with a defined breaking point for easy removal after installation. Installation Precautions: No direct mounting onto a pump, bend, or elbow. Install a minimum of five times the nominal pipe diameter away from pumps, bends, or elbows. (Example: Install a 4" valve 20" away from pump discharge.) Note: Do not use valves without springs for pulsating applications.

  • PVC (ASTM D1784, Cell Classification 12454)
  • EPDM seals
  • 316 stainless steel spring
  • Can be installed horizontally or vertically
  • Easy installation due to integrated flange bolt guides for DIN2501 PN10 & ANSI Class 150
  • Does not require a spacer for full disc opening performance in schedule 80 pipe
  • Full seal at maximum 0.3 bar / 4.5 psi back pressure
  • Pressure rating: 150 psi @ 72°F, non-shock
  • Maximum temperature: 104°F
  • Meets NSF 61 standards
Stock Description Catalog Pg. Price
2" PVC Wafer Check Valve with EPDM Seals & SS Spring
Item 21325
249.41/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-467
249.41/Each
2.5" PVC Wafer Check Valve with EPDM Seals & SS Spring
Item 21327
262.74/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-467
262.74/Each
3" PVC Wafer Check Valve with EPDM Seals & SS Spring
Item 21328
283.34/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-467
283.34/Each
4" PVC Wafer Check Valve with EPDM Seals & SS Spring
Item 21329
330.65/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-467
330.65/Each
6" PVC Wafer Check Valve with EPDM Seals & SS Spring
Item 21330
522.32/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-467
522.32/Each
8" PVC Wafer Check Valve with EPDM Seals & SS Spring
Item 21332
819.68/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-467
819.68/Each

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