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Valves

Valves

Linkbelt 4300 Hydraulic Valve Assembly for Excavator
Linkbelt 4300 Hydraulic Valve Assembly for Excavator
Paypal   US $14,685.00
04 JOHN DEERE 240 SERIES 2 SKIDSTEER BOBCAT LOADER 3RD VALVE 1117 HRS 53 HP
04 JOHN DEERE 240 SERIES 2 SKIDSTEER BOBCAT LOADER 3RD VALVE 1117 HRS 53 HP
Paypal   US $13,999.00
Rotary Valve Model MST Size 2422 by Andritz Sprout
Rotary Valve Model MST Size 2422 by Andritz Sprout
Paypal   US $8,800.00
Case 580K Backhoe Control Valve part 1346082C2
Case 580K Backhoe Control Valve part 1346082C2
Paypal   US $6,714.00
HOLBY TEMPERING VALVE 4 COMPLETE OEM NEW
HOLBY TEMPERING VALVE 4 COMPLETE OEM NEW
Paypal   US $6,712.20
2004 CUMMINS 24 VALVE ENGINE 59 LITER $6500
2004 CUMMINS 24 VALVE ENGINE 59 LITER $6500
Paypal   US $6,500.00
Case 580SL 590SL Backhoe Control Valve part 119642A3
Case 580SL 590SL Backhoe Control Valve part 119642A3
Paypal   US $6,366.65
40 tree spade mechanical valve only $5695
40 tree spade mechanical valve only $5695
Paypal   US $5,695.00
4T5129 Cat Valve Gp D6H Good Used Caterpillar
4T5129 Cat Valve Gp D6H Good Used Caterpillar
Paypal   US $5,000.00
8 Watts M115 PRV Pressure Reducing Valve Mustang Ser
8 Watts M115 PRV Pressure Reducing Valve Mustang Ser
Paypal   US $4,499.00
7J0631 Cat Valve Gp 631C 637C 637 633C Good Used Caterpillar
7J0631 Cat Valve Gp 631C 637C 637 633C Good Used Caterpillar
Paypal   US $3,750.00
Trimble Machine Control Valve Kit Motorgrader New
Trimble Machine Control Valve Kit Motorgrader New
Paypal   US $3,500.00
HOLBY TEMPERING VALVE 3 COMPLETE OEM NEW
HOLBY TEMPERING VALVE 3 COMPLETE OEM NEW
Paypal   US $3,384.26
NEW John Deere Timberjack Hydraulic Control Valve NEVER INSTALLED
NEW John Deere Timberjack Hydraulic Control Valve NEVER INSTALLED
Paypal   US $3,520.00
Komatsu Hydraulic Valve Assembly 709 75 92503
Komatsu Hydraulic Valve Assembly 709 75 92503
Paypal   US $3,000.00
HOLBY TEMPERING VALVE 4 COMPLETE OEM REPAIR KIT NEW
HOLBY TEMPERING VALVE 4 COMPLETE OEM REPAIR KIT NEW
Paypal   US $2,998.36
HOLBY TEMPERING VALVE 2 1 2 COMPLETE OEM NEW
HOLBY TEMPERING VALVE 2 1 2 COMPLETE OEM NEW
Paypal   US $2,554.61
Case Pump Control Valve Kit p n 1971589C2
Case Pump Control Valve Kit p n 1971589C2
Paypal   US $2,523.65
Spirax Sarco 6x8 SV 73 Cast Iron Flanged Relief Valve
Spirax Sarco 6x8 SV 73 Cast Iron Flanged Relief Valve
Paypal   US $2,500.00
Dezurik Plug Valve 24 Waterworks Wastewater Line
Dezurik Plug Valve 24 Waterworks Wastewater Line
Paypal   US $2,400.00
6G1322 Cat Valve Gp 651B 657B Front 641B Good Used Caterpillar
6G1322 Cat Valve Gp 651B 657B Front 641B Good Used Caterpillar
Paypal   US $2,375.00
9J2059 Cat Valve Control Gp 651B 657B Front 641B Good Used Caterpillar
9J2059 Cat Valve Control Gp 651B 657B Front 641B Good Used Caterpillar
Paypal   US $2,375.00
9T1096 Cat Valve 235 235B Good Used Caterpillar
9T1096 Cat Valve 235 235B Good Used Caterpillar
Paypal   US $2,325.00
VAT Stainless Vacuum Gate Valve 03110 NE24 1001 0029 R
VAT Stainless Vacuum Gate Valve 03110 NE24 1001 0029 R
Paypal   US $2,299.99
VAT Stainless Vacuum Gate Valve 03110 NE24 1001 0027 R
VAT Stainless Vacuum Gate Valve 03110 NE24 1001 0027 R
Paypal   US $2,299.99
VAT Stainless Vacuum Gate Valve 03110 NE24 1001 0028 R
VAT Stainless Vacuum Gate Valve 03110 NE24 1001 0028 R
Paypal   US $2,299.99
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Why do Cylinder Head valves have to be Round?

Why Can't cylinder valves have a Slot in the stem (to prevent Rotation) and have the Base be a Non-Circle Shape that makes better Use of space to allow Air in/Out??
Thank you All for the Great answers! It is difficult for me to Pick the Best One.

You can Build cylinder Heads anyway you want to: Square valves, triangles, in fact you don't even have to use what people think a Valve is Like Reed valves or Sleeve valves like the willis st. Claire. (Bet Most of you don't know what that is)

However if you want efficiency, rotation & no Hot spots the std Overhead valves seem to Work OK in the Internal combustion Engine

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