{"id":29429,"date":"2024-03-08T10:35:44","date_gmt":"2024-03-08T09:35:44","guid":{"rendered":"https:\/\/nh-oring.de\/?p=29429"},"modified":"2025-05-07T12:07:36","modified_gmt":"2025-05-07T10:07:36","slug":"flange-gasket-7","status":"publish","type":"post","link":"https:\/\/nh-oring.de\/en\/flange-gasket-7\/","title":{"rendered":"10 questions: O-ring grooves"},"content":{"rendered":"\t\t
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10 questions: O-RING grooves<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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TABLE OF CONTENTS<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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#1<\/span> What are O-ring grooves?<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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#2<\/span> What types of O-ring grooves are there?<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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#3<\/span> Where are O-ring grooves used?<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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#4<\/span> Which compression is optimal for O-rings?<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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#5<\/span> How much free space should there be in the groove after grouting?<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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#6<\/span> How high may the O-ring elongation be in the short and long term?<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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#7<\/span> How do I design the inside diameter correctly?<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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#8<\/span> How do I correctly lay out a groove for a PTFE O-ring?<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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#9<\/span> How are sealing gap, system pressure and O-ring hardness related?<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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#10<\/span> At which temperatures and media do the table values of a groove design apply?<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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#1<\/span> What are O-ring grooves?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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O-ring grooves are specially shaped recesses in which O-rings are placed to create a seal between two parts. <\/p>\n

They are crucial to the efficiency of the seal as they protect the O-ring from overstretching and crushing by providing a precise space to accommodate it. <\/p>\n

The design of the groove must be precise to ensure that the O-ring can exert a suitable sealing force under compression without being damaged. The groove dimensions depend on the O-ring size and the area of application. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Feature<\/strong><\/th>\nProperty description<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Function<\/strong><\/td>\nPlacement and protection of O-rings for sealing between two components<\/td>\n<\/tr>\n
Importance<\/strong><\/td>\nProtection against overstretching and crushing of the O-ring<\/td>\n<\/tr>\n
Design<\/strong><\/td>\nMust be precise to ensure effective sealing and O-ring protection<\/td>\n<\/tr>\n
Dependence<\/strong><\/td>\nDimensions based on O-ring size and application<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t<\/i>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\tTOOL FOR GROOVE DESIGN<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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REQUEST O-RINGS QUICKLY AND EASILY?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Almost any dimension available<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Offer received in record time<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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No minimum order quantities or minimum item values<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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One contact for all concerns<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t<\/i>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\tREQUEST O-RINGS HERE<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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#2<\/span> What types of O-ring grooves are there?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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With O-ring grooves, a distinction is mainly made between rectangular grooves, trapezoidal grooves and triangular grooves. Rectangular grooves are the standard shape and provide a simple, effective seal for a wide range of applications. <\/p>\n

Trapezoidal grooves are advantageous when the Shore hardness of the O-ring must be taken into account; for an O-ring with 90 Shore A, it is recommended that the width of the trapezoidal groove be slightly larger to allow adequate compression without excessive stress. <\/p>\n

Triangular grooves offer the advantage of filling almost 100% of the space, which eliminates gaps for bacteria or deposits and makes them particularly suitable for hygienic or sterile applications.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Groove type<\/strong><\/th>\ngroove description<\/strong><\/th>\nAdvantage<\/strong><\/th>\nSpecial feature<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Rectangular groove<\/strong><\/td>\nStandard shape, universally applicable<\/td>\nSimple design and effective sealing<\/td>\nVersatile for many applications<\/td>\n<\/tr>\n
Trapezoidal groove<\/strong><\/td>\nAdapted to the shore hardness of the O-ring<\/td>\nEnables compression without excessive stress<\/td>\nAdjust width for hard O-rings (90 Shore A)<\/td>\n<\/tr>\n
Triangular groove<\/strong><\/td>\nFills almost 100% of the space<\/td>\nNo gaps for bacteria\/deposits<\/td>\nIdeal for hygienic or sterile applications<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Rectangular groove<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Rechtecksnut\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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Trapezoidal groove<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Trapeznut\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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Triangular groove<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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#3<\/span> Where are O-ring grooves used?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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O-ring grooves are widely used in various industries where reliable sealing is required. They are used in the automotive industry for engine and transmission seals, in the aerospace industry for hydraulic systems, in medical technology for devices that carry liquids or gases, as well as in the general mechanical engineering and process industries. O-ring grooves are also indispensable in water-bearing systems and in the oil and gas industry for sealing under high pressures and temperatures. Their versatility and efficiency make them a preferred solution for many sealing tasks. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Industry<\/strong><\/th>\nArea of application<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Automotive<\/strong><\/td>\nEngine and transmission seals<\/td>\n<\/tr>\n
Aerospace<\/strong><\/td>\nHydraulic systems<\/td>\n<\/tr>\n
Medical technology<\/strong><\/td>\nDevice seals<\/td>\n<\/tr>\n
Mechanical engineering<\/strong><\/td>\nGeneral sealing tasks<\/td>\n<\/tr>\n
Oil and gas<\/strong><\/td>\nSealing under high pressures and temperatures<\/td>\n<\/tr>\n
Water drainage<\/strong><\/td>\nSystem seals<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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#4<\/span> Which compression is optimal for O-rings?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The optimum compression for O-rings varies depending on the application and material type. For standard O-rings, the recommended compression range is between 15 and 30% to ensure an efficient seal. <\/p>\n

For FFKM (perfluoroelastomer) O-rings, a slightly lower compression rate of 10-20% is recommended in order to make optimum use of the special properties of the material. <\/p>\n

For dynamic seals where the O-rings are subject to movement, the compression range can be set wider, from 5 to 25%. These adjusted ranges take into account the different requirements for sealing efficiency and material load. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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O-ring type<\/strong><\/th>\nRecommended compression range<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Standard O-rings<\/strong><\/td>\n15-30%<\/td>\n<\/tr>\n
FFKM O-rings<\/strong><\/td>\n10-20%<\/td>\n<\/tr>\n
Dynamic sealing<\/strong><\/td>\n5-25%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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#5<\/span> How much free space should there be in the groove after grouting?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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After pressing an O-ring, there should be about 15-20% free space in the groove to ensure optimum function and durability of the seal under different operating conditions. <\/p>\n

This clearance rate may seem high at first, but it is crucial to allow the O-ring to expand with increasing temperature, as O-rings increase in volume with increasing temperature. <\/p>\n

Sufficient groove clearance is essential, especially when used close to the maximum temperature limits, such as with FKM (fluororubber), which can be used up to 200\u00b0C. <\/p>\n

Correct consideration of the free space in the groove design, particularly taking into account the temperature conditions, is therefore essential to ensure a permanently secure and effective seal.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Aspect<\/strong><\/th>\nAspect Description<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Recommended clearance<\/strong><\/td>\n15-20% after grouting<\/td>\n<\/tr>\n
Significance<\/strong><\/td>\nEnables O-ring expansion with temperature increase<\/td>\n<\/tr>\n
Temperature consideration<\/strong><\/td>\nParticularly important in maximum temperature ranges<\/td>\n<\/tr>\n
Material example<\/strong><\/td>\nFKM (fluororubber) up to 200\u00b0C<\/td>\n<\/tr>\n
Design note<\/strong><\/td>\nSufficient groove clearance is crucial for the function and durability of the seal<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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#6<\/span> How high may the O-ring elongation be in the short and long term?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The permissible elongation of O-rings varies depending on the material and operating conditions. For standard elastomer O-rings, an elongation of up to 50% is permissible during installation, while the permanent elongation should not exceed 6%. <\/p>\n

In contrast, FEP (fluoroethylene propylene) coated O-rings may only be stretched up to 3% during assembly, with a maximum permanent elongation of 1%. <\/p>\n

In dynamic applications, where O-rings are exposed to regular movements or alternating loads, the elongation should not exceed 3%. <\/p>\n

Increased elongation can reduce the cord thickness of the O-ring, which in turn impairs the compression and thus the sealing effectiveness.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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O-ring type<\/strong><\/th>\nMaximum elongation during assembly<\/strong><\/th>\nMaximum permanent elongation<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Standard O-rings<\/strong><\/td>\n50%<\/td>\n6%<\/td>\n<\/tr>\n
FEP coated<\/strong><\/td>\n3%<\/td>\n1%<\/td>\n<\/tr>\n
Dynamic use<\/strong><\/td>\nsee above<\/td>\n3%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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#7<\/span> How do I design the inside diameter correctly?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The correct dimensioning of the inside diameter of an O-ring depends on the operating conditions, in particular on whether and in which direction pressure is exerted. <\/p>\n

Without pressure, the inner diameter of the O-ring is best designed on the inner diameter or in the middle of the groove. If the system is under pressure from the inside, the O-ring should be designed on the outside diameter, taking into account a slight compression of 0-3%. <\/p>\n

This compression helps to press the O-ring against the groove wall and achieve an effective seal. For system pressure from the outside, the design should be made on the inside diameter, also with a slight preload of 0-3%. This preload ensures that the O-ring provides a good seal even under external pressure. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Operating condition<\/strong><\/th>\nDesign location of the inside diameter<\/strong><\/th>\nRecommended adjustment<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Without pressure<\/strong><\/td>\nOn the inside diameter or in the middle of the groove<\/td>\nNo specific adjustment necessary<\/td>\n<\/tr>\n
System pressure from inside<\/strong><\/td>\nOn the outside diameter<\/td>\n0-3% compression<\/td>\n<\/tr>\n
System pressure from outside<\/strong><\/td>\nOn the inside diameter<\/td>\n0-3% preload<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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#8<\/span> How do I correctly lay out a groove for a PTFE O-ring?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Special care must be taken when designing a groove for a PTFE (polytetrafluoroethylene) O-ring, as PTFE O-rings can only be minimally compressed and stretched due to their material properties. <\/p>\n

The inside diameter of the PTFE O-ring should correspond to the inside diameter of the groove to ensure a correct fit. It is important to note that PTFE O-rings should preferably be used as flange seals, where the requirements for extensibility and compressibility are minimal. <\/p>\n

The groove design for a PTFE O-ring aims to fill the groove almost 100% with the O-ring to ensure that there are no empty spaces that could lead to leaks. This design maximizes sealing efficiency and prevents material from being over-deformed under pressure. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Aspect<\/strong><\/th>\nDesign guideline<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Inside diameter<\/strong><\/td>\nKeep the same as the groove inside diameter<\/td>\n<\/tr>\n
Field of application<\/strong><\/td>\nPreferably as a flange gasket<\/td>\n<\/tr>\n
Groove filling<\/strong><\/td>\nAlmost 100% filling to avoid empty spaces<\/td>\n<\/tr>\n
Special features of the material<\/strong><\/td>\nTake into account the minimal stretchability and compressibility of PTFE<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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#9<\/span> How are sealing gap, system pressure and O-ring hardness related?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The relationship between sealing gap, system pressure and the hardness of the O-ring is critical to the effectiveness of the seal. The choice of O-ring hardness plays an important role, as harder O-rings are better suited to high pressures by improving resistance to gap extrusion. <\/p>\n

As the system pressure increases, the sealing gap must be adjusted accordingly to ensure the integrity of the seal. At extremely high pressures, the use of support rings may be necessary to prevent gap extrusion. <\/p>\n

Harder O-rings can reduce the tendency to extrude, but it is important to find the balance as O-rings that are too hard can make assembly difficult or result in an inadequate seal.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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System pressure<\/strong><\/th>\nSealing gap design<\/strong><\/th>\nO-ring hardness<\/strong><\/th>\nMeasures against gap extrusion<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Low<\/strong><\/td>\nLarger sealing gap possible<\/td>\nSofter O-rings possible<\/td>\nNot absolutely necessary<\/td>\n<\/tr>\n
Medium<\/strong><\/td>\nSmaller sealing gap required<\/td>\nMedium to high hardness<\/td>\nUse of support rings on one side<\/td>\n<\/tr>\n
High<\/strong><\/td>\nMinimal sealing gap<\/td>\nHigh hardness preferred<\/td>\nUse of support rings on both sides<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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#10<\/span> At which temperatures and media do the table values of a groove design apply?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The values given in tables for groove design generally apply to standard conditions, i.e. when used in air and at room temperature. Each specific medium and each deviation from room temperature can significantly influence the behavior of an O-ring and thus place new demands on the groove design. <\/p>\n

Due to their chemical composition, different media can affect the materials of the O-ring in different ways, which can lead to expansion, contraction or chemical degradation. <\/p>\n

Similarly, a change in operating temperature can change the physical properties of the O-ring, such as elasticity and hardness, which in turn affects the required size and shape of the groove. <\/p>\n

In some cases, this may mean that more or less space is required in the groove to ensure optimum sealing performance.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Operating condition<\/strong><\/th>\nEffects on O-ring<\/strong><\/th>\nAdaptation of the groove design<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Standard (air, room temperature)<\/strong><\/td>\nBasic reference for design values<\/td>\nNo adjustment required<\/td>\n<\/tr>\n
Changed medium<\/strong><\/td>\nChemical interaction can influence material<\/td>\nAdapt material selection and groove design<\/td>\n<\/tr>\n
Deviating temperature<\/strong><\/td>\nChanges the elasticity\/volume of the O-ring<\/td>\nAdjust groove size and shape accordingly<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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“I am convinced that we should share our knowledge with the world. I hope I have been able to answer all your questions. If you have any further questions, please feel free to contact us at any time. We will be happy to help you.”<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\tLuke Williams\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t
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Lord of the O-rings
\nAuthor of the Sealing Academy<\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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OUR O-RING BESTSELLERS<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\tFFKM\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t
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\n\t\t\t\t\tECOLAST\u00ae\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\tFKM\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\tFEP\/PFA\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

In this short article, we answer the 10 most important questions about the correct design of O-ring grooves in a simple and understandable way.<\/p>\n","protected":false},"author":1,"featured_media":29078,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"footnotes":""},"categories":[66,75],"tags":[],"class_list":["post-29429","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-design","category-faq-en"],"yoast_head":"\n10 questions about O-ring design | Simply explained<\/title>\n<meta name=\"description\" content=\"We answer the 10 most important questions about O-ring grooves \u2705 Questions + answer \u2705 Simply explained \u2705 Click here!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nh-oring.de\/en\/flange-gasket-7\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"10 questions about O-ring design | Simply explained\" \/>\n<meta property=\"og:description\" content=\"We answer the 10 most important questions about O-ring grooves \u2705 Questions + answer \u2705 Simply explained \u2705 Click here!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nh-oring.de\/en\/flange-gasket-7\/\" \/>\n<meta property=\"og:site_name\" content=\"NH O-RING - 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