Cartridge
Description
Pilot-To-Close, Spring-Biased Closed, Unbalanced Poppet Logic Element
Specifications
Cavity T-19AU
Series 4
Capacity 300 gpm
Maximum Operating Pressure 5000 psi
Maximum Valve Leakage at 110 SUS (24 cSt) 10 drops/min.
Pilot Volume Displacement .47 in³
Pilot Passage into Valve .09 in.
Area Ratio, A3 to A1 1.8:1
Area Ratio, A3 to A2 2.25:1
Valve Hex Size 1 5/8 in.
Valve Installation Torque 350 - 375 lbf ft
Seal kit - Cartridge Buna: 990019007
Seal kit - Cartridge EPDM: 990019014
Seal kit - Cartridge Polyurethane: 990019002
Seal kit - Cartridge Viton: 990019006
Model Weight 2.56 lb.
Features
Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
These valves have positive seals between port 2 and the pilot area.
Because these valves are unbalanced, operation is pressure dependent. Opening and closing of the poppet are functions of the force balances on three areas: Port 1 = 100%, Port 2 = 80%, and the Pilot Area = 180%.
All ports will accept 5000 psi (350 bar).
these valves are pressure responsive at all ports, therefore it is essential to consider all aspects of system operation through a complete cycle. Pressure changes at any one port may cause a valve to switch from a closed to an open position, or vice versa. All possible pressure changes in the complete circuit must be considered to assure a safe, functional system design.
*Please note that image representation may only represent a product series with particular items. The buyers responsibility is to ensure the product SKU matches their specifications before purchase.
Shipping
We can ship to virtually any address worldwide. Some products carry shipping restrictions, and certain items cannot be shipped to international destinations.
Unless otherwise noted, all shipments are FOB Shipping Point.
Shipping rates for many items are weight-based. Item weights are rounded up to the next full pound, consistent with our carriers' policies.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We will also cover return shipping costs if the return is the result of our error — for example, if you received an incorrect or defective item.
Refunds are typically issued within four weeks of the date you give your package to the return shipper. This period covers:
● Transit time for the returned item to reach us (5–10 business days)
● Processing time once we receive your return (3–5 business days)
● Time for your bank to process the refund (5–10 business days)
If you need to return an item, please contact us with your order number and details about the product you would like to return. We will respond promptly with instructions for returning the item.
All returns require prior approval and a Return Merchandise Authorization (RMA) number issued by Flow Dynamics & Automation, Inc.. Returns made outside the 30-day window described above, or that are not the result of our error, must be new and unopened and are subject to a 25% restocking fee.
