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Product Specifications:
| Item | Hydraulic Valve |
| Actuation Mechanism | Pressure |
| Body | Cast Iron |
| Body Material | Cast Iron |
| Fluid Service | Oil |
| For Media | Oil |
| Height | 6" |
| Included Seals | Seals Included |
| Included Subplate | Subplate Included |
| Length | 6" |
| Max. Flow Rate | 53 GPM , 92.6 GPM |
| Max. Fluid Viscosity | 232 SUS |
| Max. Operating Temp. | 176°F |
| Max. Pressure | 3045 psi |
| Min. Operating Temp. | -4°F |
| Min. Pressure | 100 psi |
| Overall Height | 144.8" |
| Overall Length | 83" |
| Overall Width | 3 11/25" |
| Pressure Range (hydraulic Valves) | 100 psi to 3045 psi |
| Return Mechanism | Manual |
| Seal Material | Nitrile |
| Series | R4V Series |
| Valve Control | Pressure Relief |
| Valve Port Thread Type | SAE |
| Valve Type | Relief |
| Width | 5" |
Shipping Info:
| Ship weight (kg) | 3.58 |
| Ship height (cm) | 12.7 |
| Ship length (cm) | 15.24 |
| Ship width (cm) | 15.24 |
| Country of Origin | DE |
Product Variants
| Product | Model | Body Material | Max. Flow Rate | Valve Type | Max. Pressure | Pressure Range (hydraulic Valves) | Preset Pressure Settings | Valve Port Type | Seal Material | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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R4V065B110A1 | Cast Iron | - | Relief | - | 100 psi to 1532 psi | - | - | Nitrile | €2,927.55 | |
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R4V065B510A1 | Cast Iron | 53 GPM | Relief | 5075 psi | 100 psi to 5075 psi | - | - | Nitrile | €2,927.55 | |
![]() |
647B-2-1/2-2 | Stainless Steel | 10 GPM | Poppet | 50 psi | 10 psi to 50 psi | 50 psi | NPT | - | €7,088.19 | |
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637B-2-1/2-2 | Brass | 10 GPM | Soft Seat | 50 psi | 10 psi to 50 psi | 35 psi | NPT | - | €1,470.54 | |
![]() |
647B-2-1/4-2 | Stainless Steel | 4 GPM | Poppet | 50 psi | 10 psi to 50 psi | 50 psi | NPT | - | €4,258.95 | |
![]() |
637B-2-1/4-2 | Brass | 4 GPM | Soft Seat | 50 psi | 10 psi to 50 psi | 35 psi | NPT | - | €1,324.42 | |
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647B-2-3/4-2 | Stainless Steel | 15 GPM | Poppet | 50 psi | 10 psi to 50 psi | 50 psi | NPT | - | €7,187.25 |
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PARKER R4V065B310A1 Hydraulic Valve, 100 to 3045 PSI, #12 SAE Port Size, 53 gpm Max. Flow, Cast Iron
€2,927.55 /unit


