FREE delivery on orders over €150
Product Specifications:
| Item | Pressure Control Valve |
| Actuation Mechanism | Pressure |
| Body | Brass |
| Body Material | Brass |
| Check Valve Cracking Pressure | 550 psi |
| Length | 3.66" |
| Max. Flow Rate | 4 GPM |
| Maximum Operating Temperature | 250°F |
| Maximum Pressure | 650 psi |
| Maximum Pressure Setting | 550 psi |
| Minimum Operating Temperature | -40°F |
| Minimum Pressure | 430 psi |
| Overall Height | 3.66" |
| Overall Length | 1.685" |
| Overall Width | 1 1/4" |
| Port Connection Size | 1/4" |
| Port Connection Type | NPT |
| Port Connections | Inlet, Outlet |
| Preset Pressure Settings | 550 psi |
| Pressure Range (hydraulic Valves) | 430 psi to 650 psi |
| Pressure Range - Hydraulic Valves | 430 psi to 650 psi |
| Series | 620-649 Series |
| Valve Control | Pressure Relief |
| Valve Port Type | NPT |
| Valve Type | Soft Seat |
| Width | 1 1/4" |
Shipping Info:
| Ship weight (kg) | 0.38 |
| Ship height (cm) | 3.18 |
| Ship length (cm) | 9.3 |
| Ship width (cm) | 9.3 |
| Country of Origin | US |
Product Variants
| Product | Model | Body Material | Valve Type | Max. Flow Rate | Pressure Range (hydraulic Valves) | Preset Pressure Settings | Valve Port Type | Seal Material | Valve Port Thread Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
R4V065B110A1 | Cast Iron | Relief | - | 100 psi to 1532 psi | - | - | Nitrile | SAE | €2,624.41 | |
![]() |
R4V065B310A1 | Cast Iron | Relief | 53 GPM | 100 psi to 3045 psi | - | - | Nitrile | SAE | €2,624.41 | |
![]() |
R4V065B510A1 | Cast Iron | Relief | 53 GPM | 100 psi to 5075 psi | - | - | Nitrile | SAE | €2,624.41 | |
![]() |
647B-2-1/2-2 | Stainless Steel | Poppet | 10 GPM | 10 psi to 50 psi | 50 psi | NPT | - | - | €6,354.19 | |
![]() |
637B-2-1/2-2 | Brass | Soft Seat | 10 GPM | 10 psi to 50 psi | 35 psi | NPT | - | - | €1,300.26 | |
![]() |
647B-2-1/4-2 | Stainless Steel | Poppet | 4 GPM | 10 psi to 50 psi | 50 psi | NPT | - | - | €4,258.95 | |
![]() |
637B-2-1/4-2 | Brass | Soft Seat | 4 GPM | 10 psi to 50 psi | 35 psi | NPT | - | - | €1,171.05 |
Explore Products
- IDEAL SHIELD OCT-YL-98-YELL BS/BLK STK Sign Base Polyethylene Yellow
- OPTIMUM 5TPA0 Circular Saw Blade 10 Inch 78 Teeth
- WRIGHT TOOL 8156 Standard Socket, 1 Inch Drive, 12 Point, 1-3/4 Inch Size
- VERMONT GAGE 141253930 Plug Gage, Class X, NoGo, Steel, 0.5393 Inch Size
- FASCO UB600 Unit Bearing Motor 1/100 HP 0.27 CCW 230V
- MORSE CUTTING TOOLS 95270 Spiral Flute, M14 Size, 3 Flute, D6 Semi-Bottom
- EIJKELKAMP 01.02.04.10.C Extendible Auger, Coarse, 4 Inch Dia
- GRAINGER 25217_24_0 Bronze Round Tube, 3 3/4 Inch OD, 3.25 Inch ID, 24 Inch Length
Popular Search Queries
Explore More
- DEVCON
- KEYSHAFT
- KETT TOOLS
- SUBURBAN
- TOTELINE
- Packaging Tape Machines
- Painting and Finishing Tools
- Wet Mops
- Plastic Chain Barrier Accessories
- HEPA Air Filters
- IRONCLAD Framer Fingerless Dexterity Gloves
- CAMLOCK FITTINGS Type A Male Cam And Groove Adapter, Female NPT Threads
- FACOM 39 Short Reach Combination Wrenches
- CHICAGO PNEUMATIC Industrial Maintenance Air Hammers
- GLOBE SCIENTIFIC Diamond Essentials Bulk Wide Mouth HDPE Bottles
- DAYTON Fire And Smoke Dampers, Rectangular
- PIC GAUGES Pressure Gauges
- ALLEGRO SAFETY Breathing Tube Assemblies
- GROVE GEAR EL Series, BMQ-D Style, 813 Size, Aluminium Worm Gear Reducers
- VIBCO DC Electric Vibrators
Contact us
Contact your account manager right away to get personal advice.
We're available Monday through Friday, from 07:30 until 17:00.
PARKER 637B-6-1/4-2 Pressure Control Valve, 430 To 650 Psi, 1/4 Inch Npt Port Size, 4 Gpm Max. Flow, Brass
€1,114.10 /unit


