Heatproof SS316 Lens Ring Joint Gaskets

PRODUCT DESCRIPTION

Lens Gasket WELLHEAD OILFIELD API GASKETS RTJ FLANGE

We has more than 200,000 standard size ring joint gaskets in stock and available for immediate shipment. These include all popular sizes of “R”, “RX”, and “BX” style gaskets. Dan-Loc Group stocked gaskets include Low Carbon Steel, F5, 304, and 316 materials.

Materials

Description

Lens gaskets, also known as sealing lenses or high-pressure lenses are fully metallic, turned sealing elements. Lens gaskets are mainly used in high pressure applications and specifically in pipeline flanges. The machined flange surfaces form a cone segment with an opening angle of 140°. The spherical zone of the lens connects here to the cone surfaces of the flange. Lens gaskets are not sensitive to overloading; an increase of the forces leads to an increase of sealing surface, which means that the surface pressure does not increase proportionally. It is re- commended that the hardness of the gasket is lower than that of the flange since the lens sealing surfaces easily deform. Experience has shown that even if the materials are the same, the plasticity of the lens gaskets is significantly more pronounced. Normally, the welding neck flange of the associ-ated pressure stage specified in DIN EN 1092-1 is used; other, equivalent flanges are, however, permissible. A roughness of Rz <= 6.3 in radial direction is necessary for the sealing sur-faces. The flange and the gaskets have to have an accurately treated surface without scratches and damage. In addition to the standardised lens gaskets specified in DIN 2696, an addi-tional system with spherical zones as sealing surfaces is used – mostly in the chemical sector and device construction. Detailed information about this system can be found in the respective company standard.

Properties

• High technical tightness

• Complies with TA Luft 2002 [VDI 2440/2200] leakage requirements

• Good handling, mechanically stable

• Blow-out resistant

• Very good handling during transport, installation and dismantling

• Individual marking of each gasket on the outer edge

Applications

• For pipeline and device construction

• For high internal pressures and/or high temperatures

• For flanges from DN 10-200 and PN 63-400

• For vacuum

Product Range & Designs
The geometry of lens gaskets is described in DIN 2696. There are two lens gasket series specified that correspond with the two series of pipe connection dimensions.

For flanges following DIN EN 1092-1, DIN 2627, DIN 2628, DIN 2629 or DIN 2638 in areas from DN10 to DN 200 and PN 63 to PN 400

FAQ

Q: Are you trading company or manufacturer ?

A: We are a professional production enterprise

Q: How long is your delivery time?

A: Generally it is 7-15 days for stock delivery, and 15-30 days for manufacturing goods , but it depands on the quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we can provide you sample, but you need to pay for the sample and freight firstly.We will return the fee after you make an order.

Q: What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

Q:How can we trust you to make a guaranteed deal?
A:We can trade through alibaba credit guarantee orders, which will fully guarantee the effective rights and interests of buyers and sellers.

Q:Package information?

A:For inner box and master carton are made as per international standards,and we can make special designed for you if need.

If you have another question, pls feel free to contact us.