Cartridge Insert Lock Valves
The cartridge lock valves combine a Kepsel® Cartridge Insert Check with a rugged pilot operator, and function the same as the counterpart Kep-O-Lok® inline lock valve. They free flow from valve port to cylinder port (or portion of circuit) and “lock” reverse flow until pilot pressure is applied to unlock the internal check valve and allow reverse flow. Kepner's Flexible Seal Seat™ provides positive bubble-tight locking to prevent load drift or circuit creep, and answers the need where internal leakage could adversely affect performance such as with clamping cylinders or outrigger stabilizer jacks. Versions available with a sealed pilot piston. This allows a for the use of a different media to pilot the valve. Standard and specialty valve designs handle a wide variety of block and load hold applications, and are ideal for use in manifolds, subplates, or cylinder heads.
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Features and Benefits:
- Flexible Seal Seat™ for zero leak (bubble-tight) seal locking
- No threaded connections (avoid potential leakage)
- Basic pilot ratio 3:1
- Available with a sealed pilot piston. Allows a different media to pilot the valve.
- Surge flow protected with calibrated pilot orifice
- Compact, easy installation
Standard Valve Specifications:
- See notes below for Applications and O-Ring / Valve materials selection and limitation notes
- Cavity Sizes: .375 inch to 1.438 inch (9.53 mm to 36.53 mm)
- Body: Steel; Pilot Piston: Stainless; Poppet, Retainer, Rod: Steel
- O-Ring Seals: Teflon® (internal check valve), Buna -N (external body chamfer)
- Temperature: -40°F to 300°F (-40°C to 149°C), O-Ring dependent
- Operating Pressure: to 3000 PSI (207 bar)
- Flow: to 40 GPM (151 LPM)