---
title: Eliminate ORFS fittings' leaks with Parker Trap-Seal
description: Trapezoidal o-ring shapes facilitate a more secure, leak-free performance of ORFS tube fittings. Links to related resources.
---

[Industry News & Information Blog by Motion & Flow Control Products ](https://www.mfcp.com/blog)

# [Eliminate ORFS fittings' leaks with Parker Trap-Seal](https://www.mfcp.com/blog/eliminate-orfs-fittings-leaks-with-parker-trap-seal)

 Written by [Marek Bobik](https://www.mfcp.com/blog/author/marek-bobik-gravitar) | Thu, Apr 29, 2010 @ 10:52 PM

**Trapezoidal O-ring shapes up to a more secure, leak-free performance.**

Hydraulic leaks are more than a nuisance. They contribute to unsafe working environment and the [cost of hydraulic leaks](https://www.hoseandfittingsetc.com/our-blog/bid/36209/How-much-is-that-hydraulic-hose-leak-costing-you) adds up fast.

 The Trap-Seal, with its consistently positive retention in the groove, essentially eliminates the possibility of full or partial O-ring pop out which occasionally occurs with standard round-shaped O-rings.

During transit, storage or fitting assembly, the round-shaped O-ring sometimes pops out of the groove. The seal's trapezoidal shape leads to improved retention within Seal-Lok'sTM ORFS groove and virtually eliminates costly leakage and/or time consuming pre-assembly handling.  
Plus, for seal replacement in the field a standard O-ring can be used since the groove design has not changed. But because Trap-Seal reduces the possibility of pop out, it also reduces the need to replace or reinstall the seal. Imagine, a seal that doesn't get pinched and fail prematurely.

 

**Here's the benefit breakdown:**  
Improved seal retention  
Reduced risk of seal damage and leakage  
Works in the standard SAE J1453 half-dovetail groove  
Made of the same material with the same hardness as  
Parker's standard O-ring (90 Durometer Nitrile)

Posted by Joni Scott

[View full post](https://www.mfcp.com/blog/eliminate-orfs-fittings-leaks-with-parker-trap-seal)

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