# US 2013/0152672 A1 · High pressure and temperature valve > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0152672 A1 - Document ID: US20130152672A1 - Status: Published application - Kind: A1 - Application number: 13/721,489 - Filed: 2012-12-20 - Published: 2013-06-20 - Earliest claimed: 2011-12-20 - Assignees: The Gates Corporation - Inventors: Colin Donald Cook - Web page: https://patentgrep.com/patent/US20130152672A1 ## CPC - G01N 3/12: Pressure testing - F16K 1/32: Details (details of more general applicability F16K25/00 - F16K51/00) - F16K 11/07: with cylindrical slides - G01M 3/02: by using fluid or vacuum - G01N 2203/0048: Hydraulic means - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)} - G01M: TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR ## Abstract The present disclosure is directed to systems and methods which provide a seal-less high temperature and pressure valve for use in many applications. ## Claims ### Claim 1 A high pressure, high temperature, seal-less valve, comprising: a body capable of generally housing a piston, wherein said piston is capable of being moved to actuated and unactuated position, wherein said valve does not include a seal, and wherein said valve is capable of operating with fluid at about 700 bar, 150 degree Celsius, for a cycle of 1 seconds, for one million cycles without failing. ### Claim 2 (depends on 1) The valve of claim 1, wherein said body comprises a control portion operatively coupled to a return portion. ### Claim 3 (depends on 1) The valve of claim 1, wherein said body is generally formed from d2-type steel. ### Claim 4 (depends on 1) The valve of claim 1, further comprising a piston capable of being generally retained with said body, and further capable of being moved from an unactuated position to an actuated position by an activation means. ### Claim 5 (depends on 4) The valve of claim 4, wherein said piston comprises a control portion operatively coupled to a return portion, wherein said control portion is capable of being acted upon to move said piston to said actuated position. ### Claim 6 (depends on 4) The valve of claim 4, wherein fluid may not flow out of an assembly outlet of said valve when said piston is unactuated. ### Claim 7 (depends on 4) The valve of claim 4, wherein fluid may flow in an inlet of said valve and out of a test tank outlet when said piston is in said actuated position. ### Claim 8 (depends on 4) The valve of claim 4, further comprising a biasing member capable of biasing said piston generally toward said unactuated position. ### Claim 9 (depends on 9) The valve of claim 9, wherein said biasing member generally comprises stainless steel. ### Claim 10 A hose test system, comprising: a control system operatively coupled to a test system, said test system comprising: a hose test assembly configured to connect to a hose to be tested, and between inlet high pressure valve and an outlet high pressure valve; an intensifier coupled to said inlet high pressure valve, capable of increasing the pressure within said hose test assembly when said inlet high pressure valve and said outlet high pressure valve are unactuated; wherein said control system is capable of controlling the operation of said intensifier of said test system. ### Claim 11 (depends on 10) The hose test system of claim 10, wherein said inlet high pressure valve and said outlet high pressure valve are seal-less and comprise: a body capable of generally housing a piston, wherein said piston is capable of being moved to actuated and unactuated position, wherein said valve is capable of operating with fluid at about 700 bar, 150 degree Celsius, for a cycle of 1 seconds, for one million cycles without failing. ### Claim 12 (depends on 10) The hose test system of claim 10, wherein said oil used may comprise HD46-type oil. ### Claim 13 (depends on 10) The hose test system of claim 10, wherein said control system is generally hydraulic. ### Claim 14 The hose test system of 13, wherein said test system further comprises an oil temperature control system capable of generally regulating the temperature of oil used within said test system. ### Claim 15 A method of testing industrial and automotive hoses, comprising: cycling the pressure of relatively high pressure and temperature oil within one or more hoses in a test system, at least in part by actuating a pressure intensifier; isolating said one or more hoses at least in part using one or more high pressure and temperature seal-less valves, said one or more valves comprising a body capable of generally housing a piston, wherein said piston is capable of being moved to actuated and unactuated position, and wherein said valve is capable of operating with fluid at about 700 bar, 150 degree Celsius, for a cycle of 1 seconds, for one million cycles without failing. ### Claim 16 (depends on 14) The method of testing industrial and automotive hoses of claim 14, wherein said cycling comprises: raising the pressure of the oil within the test system at least in part via said intensifier controlled by a control system; isolating said one or more hoses at least in part by closing said one or more high pressure and high temperature seal-less valves; maintaining the pressure at a relatively high pressure for a period of time; and lowering the pressure of the oil at least in part by unactuating said one or more high pressure valves. ### Claim 17 (depends on 15) The method of claim 15, further comprising maintaining the temperature the oil at an acceptable temperature. ### Claim 18 (depends on 16) The method of claim 16, wherein said maintain the temperature comprises maintaining the temperature at about 200-400 degrees Fahrenheit. ### Claim 19 (depends on 15) The method of claim 15, wherein said raising the pressure comprises raising the pressure to about 500-800 bar.