Name: Drill Pipe Float Valve Sealing Rings
Brand: LINDE POLYMER
SKU: 255024462

Description

Technical Parameters

Products Description

Drill pipe float valve sealing rings are key components used in drilling operations, primarily to prevent drilling fluid from leaking from the drill pipe during drilling. They are usually installed inside a float valve, which is used to control the flow of drilling fluid, ensuring that the fluid does not flow in the opposite direction while drilling.

Drill-Pipe-Float-Valve-Sealing-Rings

Features of Drill Pipe Float Valve Sealing Rings

Floating seal design: Drill pipe float valve sealing rings adopt an elastic structure design, which can automatically adjust the contact area when the medium pressure changes, so as to ensure reliable sealing performance.

Bidirectional sealing design: The sealing ring of the float valve adopts fluid dynamic characteristics to achieve bidirectional compensation of the sealing surface to ensure that the valve seal meets national standards.

Low operating torque: The float valve adopts 360° linear sealing contact between the floating sealing ring and the valve plate, combined with an eccentric design so that it has a lower operating torque during operation.

Non-contact sealing: Drill pipe float valve sealing rings are a non-contact annular seal with no friction sealing surface, so it can effectively reduce leakage and show high-pressure resistance and reliability under a high-pressure environment.

Material durability: The sealing ring of the float valve is usually made of elastic materials, such as nitrile rubber (NBR, Buna-N) and fluoro rubber (Viton®, FKM), which can maintain good sealing performance in harsh working environments.

Types of Sealing Rings

Material Composition: Seals are typically made from high-performance materials such as Viton® or other fluoropolymers that provide excellent resistance to wear corrosion, and high temperatures (up to 400°F or 204°C).

Design Variations: Different styles of float valves (such as plunger and flapper) use seals in various configurations to optimize sealing performance under different operating conditions. For example, port valves use seals designed to more effectively manage hydrostatic pressure during the break-in period.

Material Technical Data Sheet

Viton 75	Properties	Test Method	Values
	Hardness (Shore A)	ASTM D2240	75
	Specific Gravity	ASTM D297	1.99 g/cm²
	Tensile Strength	ASTM D412	50 kg/cm²
	Elongation at Break	ASTM D412	200%
	Compression Set (25% 24hrs @ 70°C)	ASTM D395 Method B	56%
	Working Temperature Range	-	-20°C to + 275°C
	Heat Ageing (48hrs @ 150°C)
	Hardness Change	ASTM D573	+6° (Max)
	Tensile Strength Change	ASTM D573	+14%
	Elongation at Break Change	ASTM D573	+/- 24%
	Volume Swell (24hrs @ 150°C)
	ASTM Oil No.1	ASTM D 471	-7%
	ASTM Oil No.2	ASTM D 471	-2%
	ASTM Oil No.3	ASTM D 471	+6%
	Chemical Resistance
	Ozone Resistance	ASTM D 1149	Excellent
	Dilute Acids and Bases Resistance	-	Excellent
	Concentrated Acids and Bases Resistance	-	Excellent

about Us

Company profile

Linde Polymer Tec Co., Ltd. mainly produces a variety of rubber compounds and rubber seals and currently has more than 3,000 material formulas and more than 2,000 product specifications. Products are suitable for automotive, aviation, machinery, petrochemical, medical, food, electronics, military, industrial, and other fields. Since the establishment of the factory, the company has completed the process consistency operation, and the product yield rate has reached 97.1%.