My current tractor (D17 Series III) has an FEL. There are two levers that operate it. One raises/lowers the boom, the other lever scoops/dumps the bucket. The cylinders are 2 way. I'm looking to replace the control valve (I think it leaks internally) with the kind that has one single lever that controls all the functions. The hydraulic pump is mounted in front of the radiator, and it maintains pressure as long as the engine is turning. I believe the operating pressure is 3000 psi.
What sort of control valve should I get? I'm reading the descriptions of 4 of them that I found, but I do not understand their definitions. 2 of the control valves are $200, one is $160, and the last one is $100. I mostly use the tractor for moving loose materials, clearing snow, moving brushpiles, etc. Here is the description of the 4 valves:
1. "monoblock loader valve with regeneration is a 2-spool loader valve rated for 10 GPM and 4500 PSI, with adjustable relief preset at 2000 PSI. Spool actions are regeneration with spring-centering and 4th position float. Tandem center spools with joystick handle. $200"
2. "monoblock loader valve is a 2-spool loader valve rated for 10 GPM and 4500 PSI, with adjustable relief preset at 2000 PSI. Spool actions are spring-centering and 4th position float. Tandem center spools with joystick handle. $200"
3. "4-way with floats; has balanced spools with select fit. Load checks to prevent load drops when shifting directions. Good for use on snowplows, dozers, loaders etc. Float valves allow blade or bracket to float along ground. Will accept power beyond plug conversion. Relief preset at 2000 PSI. $160"
4. "Up to 20 GPM with 4 ports. Factory pre-set at 1500 PSI, has adjustable relief valve. For lower pressure, turn counter-clockwise. Adjustable from 1000 to 3000 PSI. Precision honed and plated, spools are hydraulically balanced. Spring centered. 3/4in. inlet/outlet ports, 1/2in. work ports. $100"
What valve would you suggest I buy?
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