{"id":656,"date":"2025-02-24T10:47:15","date_gmt":"2025-02-24T02:47:15","guid":{"rendered":"https:\/\/hengoseal.com\/?p=656"},"modified":"2025-04-21T10:36:00","modified_gmt":"2025-04-21T02:36:00","slug":"hydraulic-o-rings-complete-guide","status":"publish","type":"post","link":"https:\/\/hengoseal.com\/ar\/hydraulic-o-rings-complete-guide\/","title":{"rendered":"What Are Hydraulic O-Rings and How to Choose the Right One in 2025?"},"content":{"rendered":"<p>\u062a\u062a\u0637\u0644\u0628 \u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u0629 \u062d\u0644\u0648\u0644 \u0625\u062d\u0643\u0627\u0645 \u0645\u0648\u062b\u0648\u0642\u0629\u060c \u0648 <strong>hydraulic O-rings<\/strong> are the go-to choice for most industries.<br \/>\nBut with so many options, how do you pick the right one? Let's break it down.<\/p>\n<p>\u062a\u0648\u0641\u0631 \u0627\u0644\u062d\u0644\u0642\u0627\u062a \u0627\u0644\u0645\u0637\u0627\u0637\u064a\u0629 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u0629 \u0623\u062e\u062a\u0627\u0645\u064b\u0627 \u0645\u0627\u0646\u0639\u0629 \u0644\u0644\u062a\u0633\u0631\u0628 \u0641\u064a \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0630\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0639\u0627\u0644\u064a. \u064a\u0636\u0645\u0646 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0627\u062f\u0629 \u0648\u0627\u0644\u062d\u062c\u0645 \u0627\u0644\u0645\u0646\u0627\u0633\u0628\u064a\u0646 \u0627\u0644\u0645\u062a\u0627\u0646\u0629 \u0648\u0627\u0644\u0643\u0641\u0627\u0621\u0629. \u062a\u0639\u0631\u0641 \u0639\u0644\u0649 \u0627\u0644\u0623\u0646\u0648\u0627\u0639 \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629 \u0648\u0646\u0635\u0627\u0626\u062d \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0648\u0623\u0645\u0627\u0643\u0646 \u0634\u0631\u0627\u0621 \u0627\u0644\u062d\u0644\u0642\u0627\u062a \u0627\u0644\u0645\u0637\u0627\u0637\u064a\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062c\u0648\u062f\u0629.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/hengoseal.com\/wp-content\/uploads\/2025\/04\/UN-Hydraulic-Seals.jpg\" alt=\"placeholder_image\" \/><\/p>\n<p>\u0625\u0646 \u0641\u0647\u0645 \u0627\u0644\u062d\u0644\u0642\u0627\u062a \u0627\u0644\u0645\u0637\u0627\u0637\u064a\u0629 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u0629 \u0623\u0645\u0631 \u0628\u0627\u0644\u063a \u0627\u0644\u0623\u0647\u0645\u064a\u0629 \u0644\u0643\u0641\u0627\u0621\u0629 \u0627\u0644\u0646\u0638\u0627\u0645 \u0648\u0637\u0648\u0644 \u0639\u0645\u0631\u0647. \u062f\u0639\u0646\u0627 \u0646\u0633\u062a\u0643\u0634\u0641 \u0623\u0646\u0648\u0627\u0639\u0647\u0627 \u0648\u0645\u0648\u0627\u062f\u0647\u0627 \u0648\u0623\u0641\u0636\u0644 \u062a\u0637\u0628\u064a\u0642\u0627\u062a\u0647\u0627 \u0644\u0645\u0633\u0627\u0639\u062f\u062a\u0643 \u0641\u064a \u0627\u062a\u062e\u0627\u0630 \u0642\u0631\u0627\u0631 \u0645\u0633\u062a\u0646\u064a\u0631.<\/p>\n<hr \/>\n<h2>What Is a Hydraulic O-Ring?<\/h2>\n<p>\u062a\u0644\u0639\u0628 \u0627\u0644\u062d\u0644\u0642\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u0629 \u062f\u0648\u0631\u064b\u0627 \u062d\u064a\u0648\u064a\u064b\u0627 \u0641\u064a \u0625\u062d\u0643\u0627\u0645 \u063a\u0644\u0642 \u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0645\u0636\u063a\u0648\u0637\u0629. \u0648\u0644\u0643\u0646 \u0645\u0627 \u0647\u064a \u0628\u0627\u0644\u0636\u0628\u0637\u060c \u0648\u0643\u064a\u0641 \u062a\u0639\u0645\u0644\u061f<\/p>\n<p>\u0623 <strong>\u062d\u0644\u0642\u0629 \u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u0629<\/strong> \u0647\u0648 \u0639\u0628\u0627\u0631\u0629 \u0639\u0646 \u0645\u0627\u0646\u0639 \u062a\u0633\u0631\u0628 \u062f\u0627\u0626\u0631\u064a \u0645\u0646 \u0645\u0627\u062f\u0629 \u0627\u0644\u0625\u064a\u0644\u0627\u0633\u062a\u0648\u0645\u0631 \u0645\u0635\u0645\u0645 \u0644\u0645\u0646\u0639 \u062a\u0633\u0631\u0628 \u0627\u0644\u0633\u0648\u0627\u0626\u0644 \u0641\u064a \u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u0629. \u0641\u0647\u0648 \u064a\u062a\u0646\u0627\u0633\u0628 \u0645\u0639 \u0627\u0644\u0623\u062e\u062f\u0648\u062f \u0648\u064a\u0636\u063a\u0637 \u062a\u062d\u062a \u0627\u0644\u0636\u063a\u0637 \u0644\u0625\u0646\u0634\u0627\u0621 \u0645\u0627\u0646\u0639 \u062a\u0633\u0631\u0628 \u0645\u062d\u0643\u0645.<\/p>\n<p>\u062a\u0639\u0645\u0644 \u0627\u0644\u062d\u0644\u0642\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u0629 O \u0643\u0623\u062e\u062a\u0627\u0645 \u062b\u0627\u0628\u062a\u0629 \u0623\u0648 \u062f\u064a\u0646\u0627\u0645\u064a\u0643\u064a\u0629\u060c \u0645\u0645\u0627 \u064a\u0645\u0646\u0639 \u0627\u0644\u062a\u0633\u0631\u0628 \u0628\u064a\u0646 \u0627\u0644\u0623\u0633\u0637\u062d \u0627\u0644\u0645\u062a\u0635\u0644\u0629. \u064a\u0639\u062f \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0627\u062f\u0629 \u0623\u0645\u0631\u064b\u0627 \u0628\u0627\u0644\u063a \u0627\u0644\u0623\u0647\u0645\u064a\u0629 \u0644\u0636\u0645\u0627\u0646 \u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0648\u062a\u062d\u0645\u0644 \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0648\u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u062a\u0622\u0643\u0644.<\/p>\n<p>\ud83d\udc49 For more about O-ring basics, check out <a href=\"https:\/\/hengoseal.com\/ar\/what-are-o-rings-how-they-work\/\" target=\"_blank\">What Are O-Rings and How Do They Work?<\/a><\/p>\n<hr \/>\n<h2>What Are the Different Types of Hydraulic O-Rings?<\/h2>\n<p>\u0644\u064a\u0633\u062a \u0643\u0644 \u062d\u0644\u0642\u0627\u062a O \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u0629 \u0645\u062a\u0634\u0627\u0628\u0647\u0629. \u062a\u062a\u0637\u0644\u0628 \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629 \u0645\u0648\u0627\u062f \u0648\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0645\u062e\u062a\u0644\u0641\u0629.<br \/>\n\u062a\u0634\u0645\u0644 \u0623\u0646\u0648\u0627\u0639 \u0627\u0644\u062d\u0644\u0642\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629 \u0645\u0627 \u064a\u0644\u064a: <strong>NBR\u060c FKM\u060c EPDM\u060c \u0648PTFE<\/strong>\u060c \u0643\u0644 \u0645\u0646\u0647\u0627 \u064a\u0648\u0641\u0631 \u0645\u0632\u0627\u064a\u0627 \u0641\u0631\u064a\u062f\u0629 \u0645\u0646 \u062d\u064a\u062b \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0648\u0627\u0644\u0636\u063a\u0637 \u0648\u0627\u0644\u062a\u0648\u0627\u0641\u0642 \u0645\u0639 \u0627\u0644\u0633\u0648\u0627\u0626\u0644.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/hengoseal.com\/wp-content\/uploads\/2025\/04\/hydraulic-seal-failures.png\" alt=\"placeholder_image\" \/><\/p>\n<p>\ud83d\udc49 Want to know which material is best for your needs? Read <a href=\"https:\/\/hengoseal.com\/ar\/fkm-o-ring-vs-nbr-o-ring\/\" target=\"_blank\">\u062d\u0644\u0642\u0627\u062a O \u0645\u0646 FKM \u0645\u0642\u0627\u0628\u0644 \u062d\u0644\u0642\u0627\u062a NBR<\/a> for high-temp applications.<\/p>\n<hr \/>\n<h2>Which O-Ring Material Is Best for Hydraulic Systems?<\/h2>\n<p>Hydraulic O-rings are made from a variety of materials. Each one has its strengths and weaknesses depending on the specific requirements of the system.<\/p>\n<p><strong>FKM (Viton) O-rings<\/strong> are the most durable, withstanding high temperatures, chemicals, and extreme pressure. They outperform NBR and EPDM in harsh conditions.<\/p>\n<p>\ud83d\udc49 For high-temperature environments, check out our guide to <a href=\"https:\/\/hengoseal.com\/ar\/epdm-vs-fkm-o-rings\/\" target=\"_blank\">EPDM vs. FKM O-Rings<\/a>.<\/p>\n<hr \/>\n<h2>What Are the Standard Sizes of O-Rings?<\/h2>\n<p>O-rings come in standard <strong>AS568<\/strong> sizes (inches) and <strong>DIN 3771<\/strong> sizes (metric). Selecting the right size ensures a proper seal and long service life.<\/p>\n<p>Hydraulic O-rings typically come in sizes that fit the specifications required by the system. Proper sizing is crucial to prevent leakage and ensure reliability.<\/p>\n<p>\ud83d\udc49 Learn more about how to choose the correct size in <a href=\"https:\/\/hengoseal.com\/ar\/how-to-measure-o-ring-size\/\" target=\"_blank\">How to Measure O-Ring Sizes Correctly<\/a>.<\/p>\n<hr \/>\n<h2>How Do I Choose the Right Hydraulic O-Ring Size?<\/h2>\n<p>Choosing the right hydraulic O-ring is essential to prevent system failure. Here's how to make the best choice.<\/p>\n<p>\u0639\u0646\u062f \u0627\u062e\u062a\u064a\u0627\u0631 \u062d\u0644\u0642\u0629 O\u060c \u0636\u0639 \u0641\u064a \u0627\u0639\u062a\u0628\u0627\u0631\u0643 \u062a\u0648\u0627\u0641\u0642 \u0627\u0644\u0645\u0648\u0627\u062f \u0648\u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0648\u0645\u0639\u062f\u0644\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0648\u0646\u0648\u0639 \u0627\u0644\u062a\u0637\u0628\u064a\u0642. \u0643\u0645\u0627 \u0623\u0646 \u0627\u0644\u062d\u062c\u0645 \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u0648\u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0623\u0645\u0631\u0627\u0646 \u0645\u0647\u0645\u0627\u0646 \u0623\u064a\u0636\u064b\u0627.<\/p>\n<p>\ud83d\udc49 Want a deeper dive into sizing? See our guide on <a href=\"https:\/\/hengoseal.com\/ar\/o-ring-kit-guide-benefits-uses\/\" target=\"_blank\">How to Choose the Right O-Ring Kit<\/a>.<\/p>\n<hr \/>\n<h2>How to Measure Hydraulic O-Rings?<\/h2>\n<p>Accurate measurement is key to ensuring the perfect fit for your hydraulic system. To measure O-rings, you\u2019ll need to measure the <strong>\u0627\u0644\u0642\u0637\u0631 \u0627\u0644\u062f\u0627\u062e\u0644\u064a (ID)\u060c \u0648\u0627\u0644\u0642\u0637\u0631 \u0627\u0644\u062e\u0627\u0631\u062c\u064a (OD)\u060c \u0648\u0627\u0644\u0645\u0642\u0637\u0639 \u0627\u0644\u0639\u0631\u0636\u064a (CS)<\/strong> using calipers.<\/p>\n<p>Proper measurement ensures no gaps or overcompression, preventing system leaks.<\/p>\n<p>\ud83d\udc49 Need a kit for accurate measurements? Check out our <a href=\"https:\/\/hengoseal.com\/ar\/product\/o-ring-maker\/\" target=\"_blank\">\u0645\u062c\u0645\u0648\u0639\u0629 \u0635\u0627\u0646\u0639 \u0627\u0644\u062d\u0644\u0642\u0627\u062a \u0627\u0644\u062f\u0627\u0626\u0631\u064a\u0629<\/a> for custom-sized O-rings.<\/p>\n<hr \/>\n<h2>Best Hydraulic O-Rings for Different Applications<\/h2>\n<p>\u062a\u062a\u0637\u0644\u0628 \u0627\u0644\u0635\u0646\u0627\u0639\u0627\u062a \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629 \u062d\u0644\u0642\u0627\u062a O \u0645\u062a\u062e\u0635\u0635\u0629 \u0644\u062a\u062d\u0642\u064a\u0642 \u0627\u0644\u0623\u062f\u0627\u0621 \u0627\u0644\u0623\u0645\u062b\u0644. \u0645\u0627 \u0647\u0648 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u0623\u0641\u0636\u0644 \u0644\u0627\u062d\u062a\u064a\u0627\u062c\u0627\u062a\u0643\u061f<\/p>\n<table>\n<thead>\n<tr>\n<th>\u0637\u0644\u0628<\/th>\n<th>\u0645\u0627\u062f\u0629 \u0627\u0644\u062d\u0644\u0642\u0629 \u0627\u0644\u062f\u0627\u0626\u0631\u064a\u0629 \u0627\u0644\u0645\u0648\u0635\u0649 \u0628\u0647\u0627<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u0629 \u0627\u0644\u0639\u0627\u0645\u0629<\/td>\n<td>\u0646 \u0628\u064a \u0622\u0631<\/td>\n<\/tr>\n<tr>\n<td>\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629<\/td>\n<td>FKM (\u0641\u064a\u062a\u0648\u0646)<\/td>\n<\/tr>\n<tr>\n<td>\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0645\u064a\u0627\u0647 \u0648\u0627\u0644\u0628\u062e\u0627\u0631<\/td>\n<td>\u0627\u0644\u0625\u064a\u062b\u064a\u0644\u064a\u0646 \u0628\u0631\u0648\u0628\u064a\u0644\u064a\u0646 \u062f\u064a \u0625\u0645<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u0645\u0639\u0627\u0644\u062c\u0629 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629<\/td>\n<td>\u0645\u0627\u062f\u0629 \u0627\u0644\u0628\u0648\u0644\u064a \u062a\u062a\u0631\u0627\u0641\u0644\u0648\u0631\u0648 \u0625\u064a\u062b\u064a\u0644\u064a\u0646<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\ud83d\udc49 For more info on hydraulic systems, explore our <a href=\"https:\/\/hengoseal.com\/ar\/hydraulic-o-rings-complete-guide\/\" target=\"_blank\">\u062f\u0644\u064a\u0644 \u0627\u0644\u062d\u0644\u0642\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u0629 O<\/a>.<\/p>\n<hr \/>\n<h2>Where to Buy Hydraulic O-Rings?<\/h2>\n<p>Finding reliable hydraulic O-ring suppliers ensures quality and longevity. But where should you shop?<\/p>\n<p>\u0627\u0634\u062a\u0631\u064a \u0645\u0646 <strong>\u0627\u0644\u0634\u0631\u0643\u0627\u062a \u0627\u0644\u0645\u0635\u0646\u0639\u0629 \u0630\u0627\u062a \u0627\u0644\u0633\u0645\u0639\u0629 \u0627\u0644\u0637\u064a\u0628\u0629<\/strong> \u0645\u062b\u0644 Hengoseal \u0644\u0644\u062d\u0644\u0642\u0627\u062a \u0627\u0644\u0645\u0637\u0627\u0637\u064a\u0629 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062c\u0648\u062f\u0629 \u0648\u0627\u0644\u0642\u0627\u0628\u0644\u0629 \u0644\u0644\u062a\u062e\u0635\u064a\u0635. \u0643\u0645\u0627 \u062a\u0642\u062f\u0645 \u0645\u0646\u0635\u0627\u062a B2B \u0639\u0628\u0631 \u0627\u0644\u0625\u0646\u062a\u0631\u0646\u062a \u0648\u0627\u0644\u0645\u0648\u0632\u0639\u0648\u0646 \u0627\u0644\u0645\u062d\u0644\u064a\u0648\u0646 \u062e\u064a\u0627\u0631\u0627\u062a \u0623\u064a\u0636\u064b\u0627.<\/p>\n<p>\ud83d\udc49 Explore our shop for hydraulic O-rings: <a href=\"https:\/\/hengoseal.com\/ar\/o-ring-seal\/\" target=\"_blank\">Hydraulic O-Ring Seals<\/a>.<\/p>\n<hr \/>\n<h2>\u0645\u0646\u0634\u0648\u0631\u0627\u062a \u0630\u0627\u062a \u0635\u0644\u0629<\/h2>\n<p><strong>\ud83d\udcd8 Material Selection:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/hengoseal.com\/ar\/fkm-o-ring-vs-nbr-o-ring\/\" target=\"_blank\">FKM vs. NBR O-Rings \u2013 High Temp Applications<\/a><\/li>\n<li><a href=\"https:\/\/hengoseal.com\/ar\/epdm-vs-fkm-o-rings\/\" target=\"_blank\">EPDM vs. FKM O-Rings \u2013 Which One to Choose?<\/a><\/li>\n<\/ul>\n<p><strong>\ud83d\udcd0 Sizing &amp; Measurement:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/hengoseal.com\/ar\/how-to-measure-o-ring-size\/\" target=\"_blank\">How to Measure O-Ring Sizes Correctly<\/a><\/li>\n<li><a href=\"https:\/\/hengoseal.com\/ar\/o-ring-kit-guide-benefits-uses\/\" target=\"_blank\">O-Ring Kit: How to Choose the Right One<\/a><\/li>\n<\/ul>\n<p><strong>\ud83d\udeab Preventing Leaks:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/hengoseal.com\/ar\/seal-failure-causes-prevention-guide\/\" target=\"_blank\">Top Seal Failure Causes &amp; How to Prevent Them<\/a><\/li>\n<li><a href=\"https:\/\/hengoseal.com\/ar\/prevent-o-ring-leakage-high-pressure\/\" target=\"_blank\">Prevent O-Ring Leakage Under High Pressure<\/a><\/li>\n<\/ul>\n<hr \/>\n<h2>\u062e\u0627\u062a\u0645\u0629<\/h2>\n<p>Choosing the right hydraulic O-rings ensures system efficiency, prevents leaks, and enhances longevity. Prioritize quality and proper selection for the best results.<\/p>\n<hr \/>\n<h2>\ud83d\udce9 Get Your Premium Hydraulic O-Rings Today!<\/h2>\n<p>Need customized solutions or bulk orders for hydraulic O-rings? Contact us now!<\/p>\n<p><strong>\ud83d\udce7 \u0627\u0644\u0628\u0631\u064a\u062f \u0627\u0644\u0625\u0644\u0643\u062a\u0631\u0648\u0646\u064a:<\/strong> \u0645\u0639\u0644\u0648\u0645\u0627\u062a@hengoseal.com<br \/>\n<strong>\ud83d\udcf1 \u0648\u0627\u062a\u0633\u0627\u0628:<\/strong> +86 17622979498<\/p>\n<hr \/>\n<style>\n.faq-question {\n    cursor: pointer;\n    font-weight: bold;\n    padding: 10px;\n    background-color: #f1f1f1;\n    border: 1px solid #ddd;\n    margin-bottom: 5px;\n    color: #0073aa;\n}\n.faq-answer {\n    display: none;\n    padding: 10px;\n    border-left: 3px solid #0073aa;\n    background-color: #f9f9f9;\n    margin-bottom: 10px;\n}\n<\/style>\n<p><script>\ndocument.addEventListener('DOMContentLoaded', function() {\n    const questions = document.querySelectorAll('.faq-question');\n    questions.forEach(question => {\n        question.addEventListener('click', function() {\n            const answer = this.nextElementSibling;\n            answer.style.display = answer.style.display === 'block' ? 'none' : 'block';\n        });\n    });\n});\n<\/script><br \/>\n<!-- JSON-LD FAQ Schema --><br \/>\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the best O-ring for hydraulic oil?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"NBR is widely used, but FKM is better for high heat or chemical exposure.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can hydraulic O-rings be reused?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. Once compressed or worn, replace them for proper sealing.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What causes hydraulic O-rings to leak?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Usually due to wrong size, overcompression, or material failure.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I store hydraulic O-rings?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Keep in a dry, cool place, away from UV and chemicals.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What standard sizes should I know?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"AS568 (inch) and DIN 3771 (metric) are industry standards.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I order just a few pieces?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes! Hengoseal supports low MOQ and sample orders.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Which brand of hydraulic O-rings is best?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Parker, Dichtomatik, and Hengoseal are trusted globally.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are there kits for multiple sizes?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, check our <a href=\\\"https:\/\/hengoseal.com\/o-ring-assortment-kit-guide\/\\\" target=\\\"_blank\\\">O-Ring Assortment Kit Guide\"\n      }\n    }\n  ]\n}\n<\/script><\/p>\n<h2>\u0627\u0644\u0646\u0627\u0633 \u064a\u0633\u0623\u0644\u0648\u0646 \u0623\u064a\u0636\u0627<\/h2>\n<div class=\"faq-container\">\n<div class=\"faq-question\">1. What is the best O-ring for hydraulic oil?<\/div>\n<div class=\"faq-answer\">NBR is widely used, but FKM is better for high heat or chemical exposure.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">2. Can hydraulic O-rings be reused?<\/div>\n<div class=\"faq-answer\">No. Once compressed or worn, replace them for proper sealing.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">3. What causes hydraulic O-rings to leak?<\/div>\n<div class=\"faq-answer\">Usually due to wrong size, overcompression, or material failure.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">4. How do I store hydraulic O-rings?<\/div>\n<div class=\"faq-answer\">Keep in a dry, cool place, away from UV and chemicals.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">5. What standard sizes should I know?<\/div>\n<div class=\"faq-answer\">AS568 (inch) and DIN 3771 (metric) are industry standards.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">6. Can I order just a few pieces?<\/div>\n<div class=\"faq-answer\">Yes! Hengoseal supports low MOQ and sample orders.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">7. Which brand of hydraulic O-rings is best?<\/div>\n<div class=\"faq-answer\">Parker, Dichtomatik, and Hengoseal are trusted globally.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">8. Are there kits for multiple sizes?<\/div>\n<div class=\"faq-answer\">Yes, check our <a href=\"https:\/\/hengoseal.com\/ar\/o-ring-assortment-kit-guide\/\" target=\"_blank\">\u062f\u0644\u064a\u0644 \u0645\u062c\u0645\u0648\u0639\u0629 \u062a\u0634\u0643\u064a\u0644\u0629 \u062d\u0644\u0642\u0627\u062a O<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Hydraulic systems demand reliable sealing solutions, and hydraulic O-rings are the go-to choice for most industries. But with so many [&hellip;]<\/p>","protected":false},"author":1,"featured_media":617,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[37],"tags":[],"class_list":["post-656","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-o-ring-seals"],"_links":{"self":[{"href":"https:\/\/hengoseal.com\/ar\/wp-json\/wp\/v2\/posts\/656","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hengoseal.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hengoseal.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/ar\/wp-json\/wp\/v2\/comments?post=656"}],"version-history":[{"count":0,"href":"https:\/\/hengoseal.com\/ar\/wp-json\/wp\/v2\/posts\/656\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/ar\/wp-json\/wp\/v2\/media\/617"}],"wp:attachment":[{"href":"https:\/\/hengoseal.com\/ar\/wp-json\/wp\/v2\/media?parent=656"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hengoseal.com\/ar\/wp-json\/wp\/v2\/categories?post=656"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hengoseal.com\/ar\/wp-json\/wp\/v2\/tags?post=656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}