All DK-LOK products
DK-LOK Safety/Pressure Relief Valves
All Safety/Pressure Relief Valves (every brand)
DK-LOK V66 Series Relief Valve, Cracking Pressure 5000 to 6000 psig, 1/4" Male x Female NPT Connections, SS316, V66-MF-4N-H
All DK-LOK products
DK-LOK Safety/Pressure Relief Valves
All Safety/Pressure Relief Valves (every brand)
Technical overview
The DK-LOK V66 relief valve is a spring-loaded SS316 safety valve designed to open at the specified cracking pressure and relieve excess pressure to protect downstream equipment. This model is supplied with 1/4" male x female NPT connections and uses spring designator RVS-H with an Orange color code, covering a cracking pressure range of 5000 to 6000 psig with FKM (Viton) sealing. The valve can be fine-adjusted within the applicable spring range during installation and is factory tested for cracking and reseal performance.
Key Features
- Maximum working pressure up to 6,000 psi
- Cracking pressure range 5,000 to 6,000 psi
- Orange color-coded spring for pressure identification (spring code RVS-H)
- Spring-loaded relief mechanism for accurate operation
- SS316 stainless steel body for corrosion resistance
- FKM (Viton) seal for reliable sealing
- 1/4" Male x Female NPT Connections
- Compact and durable design for industrial service
Applications
- Instrument and gauge protection
- Hydraulic and pneumatic systems
- Test benches and pressure skids
- Process and utility lines
Specifications
SeriesV66 Series
Cracking Pressure Range5000 to 6000 psig
Connection Size1/4" Male x Female NPT
Maximum Pressure6,000 psig @ 68°F (413 bar @ 20°C)
Body Material316 stainless steel
Orifice Size3.4 mm (0.13 in.)
AdjustmentAdjustable within spring range
Seal MaterialFKM Viton
Documentation
1 file