Hydraulic

Sequence Valves

Dimensions

		Sequence Valve Model No. Set Pressure Range A B Max Flow 70-4400-01 300 to 900 psi 4.7 2.37 3.0 GPM 70-4400-02 750 to 5000 psi 4.1 1.75 1.5 GPM
	For proper sealing, mating surface must be flat within 0.003 with a maximum 63 µin Ra surface finish.

All dimensions are in inches.

Sequence Valves

Model No. 70-4400-01 Assembly Model No. 70-4400-02 Assembly Control the timing of fixture devices. Specialized construction resists corrosion which can cause other styles to "misfire" . Direct acting poppet style construction. Cartridge may be installed directly into your manifold. Pressure adjustment range: 750 psi-5,000 psi  and 300 to 900 psi Two-port design eliminates need for third fluid line to drain bypass flow (internal leakage) back to system reservoir True sequence design allows full system pressure downstream of valve after opening Manifold Mountable Recommended Filtration: 25 Micron (NOM) / 40 Micron (ABS) minimum. Operation: The VektorFlo® sequence valve operates as a pressure sensitive, normally closed element in a clamping system. When fluid first enters the system at low pressure, the valve is closed, blocking the flow of fluid to devices down stream. After devices in the other branches of the system have moved into position, the pressure begins to increase. The increasing pressure overcomes the spring force holding the valve closed, forcing the poppet off its seat, and allowing fluid flow through the valve. After all devices have positioned and clamped, the downstream pressure increases to equal upstream pressure. Pressure throughout the system will increase to the maximum setting on the hydraulic power supply. When unclamping, as pressure falls, force from the adjustment spring pushes the poppet back onto its seat. Fluid trapped in the downstream circuit flows back through the check seat to return to the power unit reservoir.

Sequence Valves

Cartridge Dimensions

Sequence Valve Cartridge Model No. Set Pressure Range A B Max Flow 70-4430-01 300 to 900 psi 3.8 2.37 3.0 GPM 70-4430-02 750 to 5000 psi 3.2 1.75 1.5 GPM *Maximum Inlet Pressure for sequence valve is 5000 psi, excess voids warranty.

All dimensions are in inches.

Sequence Valves

Model No. 70-4430-01 and 70-4430-02  Cartridge Cavity

Multi-Step Carbide Cavity Contour Tool with Tap Kit Model Number: 62-7040-00 (Reamer and M20 x 1.5 Tap)

NOTE: If a sequence valve is no longer needed use 30-6011-20 plug to cap cavity for free fluid pass through.

NOTE: For Cavity tooling (multistep reamer and M20 x 1.5 tap), Order kit Model No. 62-7040-00

All dimensions are in inches.

Sequence Valves

Manifold Mount

• Valve is 100% stainless steel construction and resists the corrosion which can cause other styles to "misfire."
• Direct acting poppet style, adjustable cartridge type construction.
• The cartridge may be installed directly into your manifold.
• Two-port design eliminates need for third fluid line to drain bypass flow (internal leakage) back to system reservoir.
• True sequence design allows full system pressure downstream of valve after opening.
• Recommended Filtration: 25 Micron (NOM)/40 Micron (ABS)(minimum).

Operation: The VektorFlo^® sequence valve operates as a pressure sensitive, normally closed element in a clamping system. When fluid first enters the system at low pressure, the valve is closed, blocking the flow of fluid to devices down stream. After devices in the other branches of the system have moved into position, the pressure begins to increase. The increasing pressure overcomes the spring force holding the valve closed, forcing the poppet off its seat, and allowing fluid flow through the valve. After all devices have positioned and clamped, the downstream pressure increases to equal upstream pressure. Pressure throughout the system will increase to the maximum setting on the hydraulic power supply. When unclamping, as pressure falls, force from the adjustment spring pushes the poppet back onto its seat. Fluid trapped in the downstream circuit flows back through the check seat to return to the power unit reservoir.

All dimensions are in inches.

For proper sealing, mating surface must be flat within .003, with a maximum surface roughness of 63 Ra μin surface finish.

HOW IT WORKS