Praher Knife Gate Valves

These inexpensive valves for industrial, agricultural, and commercial markets are ideal for quick shut-off in low pressure or vacuum lines. These valves are great for use in irrigation systems, pools, spas, plumbing, wastewater control, septic systems, IBC products, aquaculture, tank drain valves, and carpet/extraction equipment.

  • White or gray PVC, or black ABS
  • Santoprene™ (TPE) lip-type seals & EPDM O-rings
  • 303/AA stainless steel shaft & hardware
  • 3" & 4" have glass-reinforced polypropylene handles & double O-ring shaft seals
  • 3" & 4" come standard with the gatekeeper safety clip to prevent unintentional closing
  • 1" to 2" have factory-pressed on handles
  • 2" & 4" have internal snap locks for gate locking in an open position
  • Vacuum: 0" Hg in a closed position & 7" Hg in an open position
  • Maximum pressure @ 70°F: 50 psi (1-1/2" to 2-1/2") & 40 psi (3" to 4")
Stock Description Catalog Pg. Price
1" Socket x Socket White PVC Knife Gate Valve
Item 21333
17.37/Each
Save 5% when you buy 4+
Save 10% when you buy 8+
Save 15% when you buy 24+
P-479
17.37/Each
1-1/2" MIP x FIP Black ABS Knife Gate Valve
Item 21057
17.88/Each
Save 5% when you buy 4+
Save 10% when you buy 8+
Save 15% when you buy 24+
P-479
17.88/Each
1-1/2" Socket x Socket White PVC Knife Gate Valve
Item 21058
17.37/Each
Save 5% when you buy 4+
Save 10% when you buy 8+
Save 15% when you buy 24+
P-479
17.37/Each
1-1/2" FIP x FIP Black ABS Knife Gate Valve
Item 21059
17.88/Each
Save 5% when you buy 4+
Save 10% when you buy 8+
Save 15% when you buy 24+
P-479
17.88/Each
1-1/2" Pool Hose x MIP White PVC Knife Gate Valve
Item 21060
17.88/Each
Save 5% when you buy 4+
Save 10% when you buy 8+
Save 15% when you buy 24+
P-479
17.88/Each
2" Socket x Socket White PVC Knife Gate Valve
Item 21082
25.46/Each
Save 5% when you buy 4+
Save 10% when you buy 8+
Save 15% when you buy 24+
P-479
25.46/Each
3" Socket x Socket Gray PVC Knife Gate Valve
Item 21083
84.26/Each
Save 5% when you buy 4+
Save 10% when you buy 8+
Save 15% when you buy 24+
P-479
84.26/Each
4" Socket x Socket Gray PVC Knife Gate Valve
Item 21084
113.14/Each
Save 5% when you buy 4+
Save 10% when you buy 8+
Save 15% when you buy 24+
P-479
113.14/Each
1-1/2" Socket x Spigot White PVC Knife Gate Valve
Item 21334
17.37/Each
Save 5% when you buy 4+
Save 10% when you buy 8+
Save 15% when you buy 24+
P-479
17.37/Each
2" Socket x Spigot White PVC Knife Gate Valve
Item 21335
25.35/Each
Save 5% when you buy 4+
Save 10% when you buy 8+
Save 15% when you buy 24+
P-479
25.35/Each