The invention provides an inter-sheet sealing method for valve sheets of a sheet type multi-way
directional valve. The sealing method comprises the following steps: S1, cleaning and
drying the surface of a valve sheet, which is to be coated with a
sealant; S2, assembling sealing elements into sealing grooves, and uniformly
coating the flat surface around the sealing elements with a layer of
sealant with a
brush; S3, selecting a white transparent hard plastic plate which is matched with the sealing surface in size to cover the sealing surface coated with the
sealant, and pressing the white transparent hard plastic plate hard against the sealing surface again and again, and observing the condition of the sealant through the white transparent hard plastic plate when the sealant fluid is squeezed by the white transparent hard plastic plate; S4, judging the sealant
coating amount, and if the sealant can form a circle of uninterrupted thin film on the periphery of an entire seal ring and does not flow into an oil hole and an oil channel under the pressure of the white transparent hard plastic plate, determining that the sealant
coating amount meets a requirement; S5, taking the white transparent hard plastic plate away, and performing
assembly according to the requirements of product
assembly; S6, cleaning waste sealant with
cotton cloth; and S7, placing a finished product in a
room temperature environment to cure the finished product.