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Vertical Check Valves
One Year Manufacturer Warranty

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Morrison Brothers 158A-25 Vertical Check Valves

1 to 3 in., Single Poppet, w/25 PSI ER

Ships From Manufacturer

Select Model & Quantity:

Model # Description Price Qty
158A--4500 AV 1 in., w/25 PSI ER (Buna) $345.81
158A--4200 AV 2 in., w/25 PSI ER (Buna) $470.68
158A--4700 AV 1 in., w/25 PSI ER (Teflon) $426.84
158A--6500 AV 2 in., w/25 PSI ER (Teflon) $631.34
158A--4900 AV 1 in., w/25 PSI ER (Viton) $379.95
158A--6700 AV 2 in., w/25 PSI ER (Viton) $563.69
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Morrison Brothers 158A-25 Vertical Check Valves

Single poppet one way check valve used to prevent backflow in supply lines or used as a prime holding valve in suction systems.

Standard Features
  • Soft seat
  • Thermal expansion available (25 or 50 PSI approximate)
  •  1/2 to 2 PSI spring setting
Construction Details
  • Body: Brass
  • Cap: Brass
  • Plunger: Brass
  • Spring: Stainless steel
  • Discs: Buna-N (Viton® and Teflon® available)
  • Expansion valve: Brass with Viton®
Figure Suffix Size Description Weight (lbs)
158A 4500 AV 1" Vertical Check Valve- w/25 PSI ER (Buna) 1.75
158A 4200 AV 2" Vertical Check Valve- w/25 PSI ER (Buna) 5.75
158A 7000 AV 3" Vertical Check Valve- w/25 PSI ER (Buna) 15
158A 4700 AV 1" Vertical Check Valve- w/25 PSI ER (Teflon) 1.75
158A 6500 AV 2" Vertical Check Valve- w/25 PSI ER (Teflon) 5.75
158A 7200 AV 3" Vertical Check Valve- w/25 PSI ER (Teflon) 15
158A 4900 AV 1" Vertical Check Valve- w/25 PSI ER (Viton) 1.75
158A 6700 AV 2" Vertical Check Valve- w/25 PSI ER (Viton) 5.75
158A 7400 AV 3" Vertical Check Valve- w/25 PSI ER (Viton) 15

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