O-ring seals provide static and dynamic sealing in hydraulic fittings and glands. Their elastomeric cross-section compresses to block fluid paths, ideal for low-pressure oilfield manifolds. Compounds like Viton resist hydraulic oils and synthetics up to 200°C. Groove design per AS568 standards ensures 20-30% squeeze. Backup rings prevent extrusion in high-pressure pulses. In API 6A fl... https://globalsealstech.com/hydraulic-seals/