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Ningbo Bote Auto Sealing Co.,Ltd

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SWG Inner Ring and SWG Outer Ring
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Product: Views:173SWG Inner Ring and SWG Outer Ring 
Unit price: Negotiable
Delivery date: Since the payment date Days delivery
Valid until: Long-term effective
Last updated: 2017-11-06 10:48


SWG Inner Ring and SWG Outer Ring



We make inner and outer ring (Centering Ring/Guide ring) by punched for size small sizes, and by lathe for large sizes.

If some material is costly, for example SS304, SS316 etc., we can make it by bending and welding with low cost, if the seal face is narrow.

We can produce according to ASME, BS, JIS and EN(DIN) standards or client request.

Our production capacity Outer ring 500,000 pcs per month, Stainless steel Inner ring 300,000 pcs per month


Typical Applications

Manufacture all standard sizes inner and outer rings for spiral wound gaskets

The rings can be manufactured by lathe and punch machine (full piece) and bending by metal coil.

We have enough homemade special groover and angling machines for making inner and outer rings of SWG with good efficiency and lower cost.


Ordering Information:


Centering and inner ring standard

Nominal pipe size and pressure rating;

Centering and inner ring materials



Carbon Steel, with zinc coating, or powder coating

SS304, SS304L, SS316, SS316L

Other special materials: SS321, SS317L, Duplex 31803, Ti, Ni, Inc, Hast. Monel, Zr. etc