Valve-Hydraulic Self Sequencing Ratchet This item was sourced on www.MFG.com as one of the items in an RFQ in INDONESIA for X - Misc. Valves This valve is a Self Sequencing Hyraulic Flow regulator, or Ratcheting Valve. Grade: YF 1290100-4 Part Part Number: YF1290100 - 4 Material: Alloy Steel Material Grade: Technical Specifications Category:X - Misc. Valves Dimensions0.0 x 0.0 inch Annual Usage:4.0 The following suppliers (machine shops, fabricators, casters, molders, 3D printing, CNC machining, etc.) provide manufacturing services and are members of the MFG.com community. For more information visit http://www.mfg.com. MFG.com performs a 5-point inspection on all engineered parts and RFQs to ensure quality and enhance your quoting experience X - Misc. Valves: Valves are mechanical devices that control the flow of fluids, liquids, semi-solids, gases and air.