{"product_id":"ultra-hydraulics-4657-256-000-electro-hydraulic-servo-valve","title":"Ultra Hydraulics 4657-256-000 Electro-Hydraulic Servo Valve","description":"\u003cdiv class=\"\" data-turn-id-container=\"request-6a43a35d-6f44-83ec-bb05-598fd82bfd75-71\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a43a35d-6f44-83ec-bb05-598fd82bfd75-71\" data-turn-id-container=\"request-6a43a35d-6f44-83ec-bb05-598fd82bfd75-71\" data-testid=\"conversation-turn-194\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"e17523d9-41c4-413b-b89f-2f1365aade0a\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"646\"\u003eThe Ultra Hydraulics 4657-256-000 Servo Valve (4657256000) is used in electro-hydraulic control systems to provide precise regulation of hydraulic fluid flow and pressure for high-performance motion control applications. Commonly installed in industrial hydraulic power units, machine tools, metal forming equipment, aerospace test systems, and automated manufacturing machinery requiring accurate closed-loop hydraulic control. Maintenance teams, hydraulic service technicians, and \u003ca href=\"https:\/\/plgautomation.com\/collections\/hmi-operator-interfaces\"\u003esystem integrators\u003c\/a\u003e use this servo valve for equipment repairs, preventive maintenance, and replacement of failed OEM hydraulic control components.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"648\" data-end=\"665\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"666\" data-end=\"986\"\u003eThe Ultra Hydraulics 4657-256-000 Servo Valve is commonly used in electro-hydraulic servo systems, CNC machine tools, hydraulic presses, test stands, motion control equipment, industrial automation systems, and precision manufacturing environments requiring accurate flow and pressure modulation for hydraulic actuators.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"988\" data-end=\"1017\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1018\" data-end=\"1539\"\u003e• Brand: Ultra Hydraulics\u003cbr data-start=\"1043\" data-end=\"1046\"\u003e• Part Number: 4657-256-000\u003cbr data-start=\"1073\" data-end=\"1076\"\u003e• Alternate Part Number: 4657256000\u003cbr data-start=\"1111\" data-end=\"1114\"\u003e• Product Type: Electro-Hydraulic Servo Valve\u003cbr data-start=\"1159\" data-end=\"1162\"\u003e• Valve Type: Precision Servo Control Valve\u003cbr data-start=\"1205\" data-end=\"1208\"\u003e• Function: Regulates hydraulic flow and pressure for closed-loop motion control\u003cbr data-start=\"1288\" data-end=\"1291\"\u003e• Control Type: Electro-Hydraulic\u003cbr data-start=\"1324\" data-end=\"1327\"\u003e• Installation: Direct OEM Replacement\u003cbr data-start=\"1365\" data-end=\"1368\"\u003e• Application: Hydraulic Motion Control Systems\u003cbr data-start=\"1415\" data-end=\"1418\"\u003e• Industrial Applications: CNC Machinery, Hydraulic Presses, Test Equipment, Aerospace Systems, and Industrial Automation\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"1541\" data-end=\"1565\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1567\" data-end=\"1702\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Ultra Hydraulics 4657-255-000 Servo Valve\u003cbr data-start=\"1610\" data-end=\"1613\"\u003e• Ultra Hydraulics 4657-257-000 Servo Valve\u003cbr data-start=\"1656\" data-end=\"1659\"\u003e• Ultra Hydraulics 4657-260-000 Servo Valve\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"ULTRA","offers":[{"title":"New","offer_id":51714358542638,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_4d38a528-8ba8-40a0-8ac1-e2b1ccfd6d69.jpg?v=1770423975","url":"https:\/\/plgautomation.com\/products\/ultra-hydraulics-4657-256-000-electro-hydraulic-servo-valve","provider":"PLG Automation ","version":"1.0","type":"link"}