English
Products
High-pressure oil and gas equipment operates under demanding conditions where seal performance can directly affect equipment reliability, maintenance requirements, and operational safety. From wellhead and production equipment to oilfield valves, downhole tools, and fracturing systems, each application places different demands on the sealing system. Choosing the right seal involves more tha...
Seals are vital for stable hydraulic system operation. Wrong material selection causes leakage and premature aging, leading to costly downtime. Nitrile Butadiene Rubber (NBR), Fluoroelastomer (FKM) and Polyurethane (PU) are the most common hydraulic sealing materials, with distinct performance in temperature, pressure and fluid compatibility. NBR (Nitrile Butadiene Rubber) NBR is a cost-eff...
In oil and gas wellhead equipment, both MEC metal end cap seals and P seals are used for demanding static sealing applications. However, they differ in construction, sealing mechanisms, and the requirements they are designed to address. The main difference is that an MEC seal combines an elastomer sealing element with bonded metal end caps, while a P seal uses an elastomer-based sealing ele...
In high-pressure oil and gas wellhead equipment, sealing performance depends on more than the elastomer itself. The sealing element must maintain reliable contact with the wellhead bore while resisting pressure, extrusion and surface imperfections. MEC Metal End Cap Seal is designed for this type of demanding static sealing application by combining an elastomer sealing element with bonded metal en...
Ball valve leakage does not always mean that the seal itself is defective. Sealing failure can result from material compatibility, pressure, temperature, installation, valve surface conditions or long-term wear. Understanding the possible causes of failure is important when selecting or replacing ball valve seals, particularly in industrial pipeline and oil and gas applications. What...
Selecting a ball valve seal is not simply a matter of matching the seal dimensions to the valve. The sealing element works directly with the valve ball and is exposed to the pressure, temperature and medium inside the system. A suitable seal therefore needs to match the actual operating conditions of the valve. For industrial applications, several factors should be evaluated before selectin...
Ball valves are widely used in oil and gas, chemical processing, energy and industrial pipeline systems where reliable shut-off is required. In these applications, the sealing system must maintain contact with the valve ball and sealing surfaces while handling the pressure of the working medium. This makes the pressure capability of a ball valve seal an important consideration when selecting a val...
Mismatch between hydraulic seal materials and hydraulic fluid is one of the most common hidden causes of premature hydraulic system failure. Chemical incompatibility may trigger seal swelling, hardening, cracking or volume deformation, further resulting in fluid leakage, pressure loss and unexpected equipment downtime. Proper material-fluid matching is critical to stable long-term operation. ...
Ball valves used in oil and gas pipelines operate under demanding conditions. They may be exposed to high pressure, temperature changes, aggressive media, and repeated opening and closing cycles. In these applications, the sealing system plays an important role in maintaining valve performance and preventing unwanted leakage. But what makes a ball valve seal suitable for API 6D applications...
Polypak seals are critical dynamic sealing components in gate valves, particularly in oil and gas applications where reliable shut-off is essential. When leakage occurs, a systematic troubleshooting approach can help identify the root cause and determine the most effective remedy. This guide outlines the key steps and considerations for diagnosing Polypak seal leakage in gate valves. Step 1...
New Blog
For inquiries about our products or pricelist, please leave to us and we will be in touch within 24 hours.
No. 1, Xinyu North Road, Ningxi Street, Zengcheng District, Guangzhou, China 511340
© Copyright: 2026 Guangzhou JST Seals Technology Co., Ltd. All Rights Reserved.
Friendly Links:
VonesealsScan to wechat
