The image shows the ALV-TROL logo in blue, with a stylized circuit design on the left and a round icon of a train in the letter "O." The text "SINCE 1947" appears underneath.
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High-Pressure Valves

Specializing in standard and custom high-pressure valves for water hydraulics and other high-pressure water systems.

The Valv-Trol High-Pressure Balanced Valves offer the smoothest operation in applications up to 3,500 PSI (240 Bar) requiring the dependable control of liquids. Many of these valves are available in optional pressure ranges of 10,000 PSI (690 Bar) and above. Other designs are available up to 30,000 PSI (2070 Bar).

A brass industrial control valve with multiple inlets and outlets, a blue actuator on top, and small cylindrical components attached to the sides, shown against a plain light background.

Two-Pressure Valve
Assembly

  • PSI: 3500 up to 6000 ( 240 up to 415 Bar)
  • Sizes: 3/4"— 4"
  • Application: This specialty valve combination is made up of a 3-way, check and high-pressure inlet valve. Several versions are available for operating single acting cylinders or presses.
3-Way Valve is also available with upgraded heavy-duty components for maximum durability.
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Balanced 3-Way/2-Position Valves

  • PSI: 3500 up to 10,000 (240 up to 690 Bar)
  • Sizes: 3/4"— 4"
  • Application: Typically used for shut-off service or pump unloading on water or oil hydraulic systems.
Also available with upgraded heavy-duty components for maximum durability.
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A bronze industrial valve with a cylindrical body and three ports, topped by a round, flat actuator. The background features a faint VALVROL logo and text. The image has rounded corners with blue accents.
A metal hydraulic control valve with multiple ports and a black actuator is displayed against a light background with a faint watermark reading "VADROL SINCE 1947.

3–Way Diverter and
Selector Valve

  • PSI: 150 up to 10,000 (10 up to 690 Bar)
  • Sizes: 1/2"— 4"
  • Application: Shifting between two different pressures, two different fluids, or two different temperature liquids.
Comes Standard as Heavy-Duty.
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Balanced 2-Way/2-
Position Valves

  • PSI:Up to 3500 (240 Bar)
  • Sizes: 3/4"— 3"
  • Application: Typically used for hydraulic systems that use either raw water or 95/5.
Also available with upgraded heavy-duty components for maximum durability.
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A bronze industrial valve with a gray actuator mounted on top is displayed against a white background with a faint "VALTROL" logo and text reading "SINCE 1947.
Two industrial valves are shown against a light background with a faint watermark. The valves are metallic and have a cylindrical shape, with one being larger and positioned to the left of the smaller one.

Angle Check Valve

  • PSI: 3500 up to 30,000 (240 up to 2070 Bar)
  • Sizes: 3/4"— 4"
  • Application: Spring loaded piston-style makes this a dependable performer in raw water or water-based fluids, as well as oils and other liquids.
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Sequence or High-Pressure Inlet Valve

  • PSI: 3500 up to 10,000 (240 up to 690 Bar)
  • Sizes: 3/4"— 4"
  • Application: Typically used for shut-off service or pump unloading on water or oil hydraulic systems.
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Two brass pressure reducing valves are shown against a light background. One valve is fully assembled, while the other has its top component removed to reveal internal parts.

Low-Flow 2-Way and
3-Way Valves

  • PSI: 3500 up to 30,000 (240 up to 2070 Bar)
  • Sizes: 1/2"— 3/4"
  • Application: Typically used on hydraulically powered auxiliary equipment where only low flows are required and fully balanced designs are not required.
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A brass industrial valve with a gray actuator on top, displayed against a white background with blue border accents. The manufacturer's logo and label are visible on the actuator.
Two industrial pressure regulators with metal bodies and round, gray actuator tops are positioned side by side against a light background with a faint logo and blue accents in the corners.

Balanced 2-Way/3-Position Valve For Throttling Service

  • PSI: 3500 up to 10,000 (240 up to 690 Bar)
  • Sizes: 3/4"— 4"
  • Application: Typically used to actuate a single acting cylinder or hydraulic press. Also used for diversion or selector service.
Also available with upgraded heavy-duty components for maximum durability.​
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Industrial pneumatic actuator with a round, ribbed dome at the top, a cylindrical midsection, and a rectangular base, shown against a light background with a faint company watermark behind it.

Balanced 2-Way Valve Normally Open or Normally Closed

  • PSI: 3500 up to 10,000 (240 up to 690 Bar)
  • Sizes: 3/4"— 4"
  • Application: Typically used for shut-off service or pump unloading on water or oil hydraulic systems.
Also available with upgraded heavy-duty components for maximum durability.

For Normally Open

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For Normally Closed

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Pressure-Reducing (Regulating) Valves

  • PSI: 4000 or 5000 (275 or 345 Bar) (500–4,500 adjustable range)
  • Sizes: 3/4"—1"
  • Application: Typically used to reduce downstream water or oil pressure. It is often used to control the tonnage on a cylinder or hydraulic press.
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A bronze industrial control valve with a gray actuator mounted on top, displayed against a light background with a faint watermark reading "VALTROL SINCE 1947.
Two industrial metal valves are displayed side by side against a plain light background. Both valves have multiple ports and flanges, with the left valve featuring a transparent section on top.

Pilot-Operated
Check Valves

  • PSI: 150 up to 8000 (10 up to 550 Bar)
  • Sizes: 2"—8"
  • Application: Often used as shut-off valves for "gas over liquid" type accumulators. Also used as large capacity prefill or dump valves for large presses.
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Back-Pressure
Relief Valves

  • PSI: 300 up to 25,000 (21 up to 1724 Bar)
  • Sizes: 1/2"—2"
  • Application: Sometimes called a back pressure regulator or bypass valve. It is used to regulate the discharge pressure of a positive displacement pump.
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A gray industrial control valve with a cylindrical actuator mounted on top, displayed against a light background with a faint “VALTROL” watermark and logo partially visible behind the valve.