Vickers | 4CT106C21UB
4CT106C21UB
Request a Quote
Call For Quote
What Happens Next?
Email Confirmation
You will get an email confirming we have received your inquiry.
Dedicated Account Manager
A team member will review your request and be in touch concerning any questions or specifications.
Quote Delivered
You will receive a comprehensive quote tailored to your specific needs.
The 4CT106C21UB pilot-operated check valve is part of the Check Valves series from Vickers and serves to block reverse flow in hydraulic circuits until a pilot signal releases the poppet. It weighs 12 kg (26.5 lb), so mounting arrangements must support that mass on manifold or line connections. The nominal size is 10, equivalent to a 1-1/4 in passage, and the primary ports share 1-1/4 in NPTF threads to simplify pipe selection. A gauge port with 7/16-20 UNF threads is provided for diagnostic pressure instruments, while the pilot port uses a 9/16-18 UNF-2B thread to accept standard pilot lines. A pilot area ratio of 48.2:1 reduces the pilot pressure needed to unseat the poppet during commanded flow. Physical dimensions measure 3.630 in in length, 3.500 in in width, and 7.000 in in height, allowing the valve to fit into compact power units.
The valve tolerates system pressures up to 210 bar (3000 psi), which meets the requirements of many industrial power packs. It opens at a cracking pressure of 5 bar (75 psi), ensuring minimal leakage before pilot actuation yet avoiding excessive preload on upstream pumps. A nominal flow rating of 300 l/min (75 gpm) permits high-volume return or supply paths without creating significant pressure loss. The internal passages are intended for fluids maintained at ISO cleanliness code 20/18/15 to protect the seating surfaces and extend service life. Viton (F3) seals are fitted, enabling compatibility with common hydraulic oils and moderate temperature ranges in automated machinery. The specified pressure margin absorbs short transients, while the flow capacity keeps velocity within acceptable limits through the valve body.
Technical Specifications
Approximate Weight
12 kg (26.5 lb)
Cracking Pressure
5 bar (75 psi)
Fluid Cleanliness (iso)
20/18/15
Gauge Port Thread
7/16-20 UNF
Max Operating Pressure
210 bar (3000 psi)
Nominal Flow Rating
300 l/min (75 gpm)
Nominal Size
10 (1-1/4 in)
Pilot Area Ratio
48.2:1
Pilot Port Thread
9/16-18 UNF-2B
Port Size (nptf)
1-1/4 in
Product Height
7.000 in
Product Length
3.630 in
Product Width
3.500 in
Seal Material
Viton (F3)
Valve Type
Pilot Operated Check Valve
1620 Old Apex Road
Shipping & Payment Options
