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ASME B16.20 Outer Ring and Inner Ring Gasket
  • ASME B16.20 Outer Ring and Inner Ring Gasket
  • ASME B16.20 Outer Ring and Inner Ring Gasket
  • ASME B16.20 Outer Ring and Inner Ring Gasket
  • ASME B16.20 Outer Ring and Inner Ring Gasket
  • ASME B16.20 Outer Ring and Inner Ring Gasket
Payment Type: L/C,T/T
Terms of Trade: FOB,CFR,CIF
Min. Order: 10 Piece/Pieces
Delivery Time: 20 Days
Packaging: Wooden Cases or as per buyer's requirements
Productivity: 1000pcs/month
Transportation: Ocean,Land,Air,Train/TNT/DHL
Place of Origin: Cangzhou,China
Supply Ability: 1000pcs/month
Certificate: ISO/CE/API
HS Code: 84841000
Port: Tianjin New Port,Beijing Air Port,Qingdao Sea Port
Basic Info

Model No.: Spiral Wound Gasket

Product Description

1.Name:Spiral wound Gaskets with Outer Ring and Inner Ring

2. Type
Type Thickness(mm)
Basic form 3.2 4.5
With inner ring 4.5
With outer ring 4.5
With inner and outer ring 4.5

3. Structure type:

Filler Hoop Inner ring Outer ring
Asbestos SUS 304 Carbon steel Carbon steel
Graphite SUS 316 SUS 304 SUS 304
PTFE SUS 316L SUS 316 SUS 316
SUS 316L SUS 316L

Flange type and Spiral Wound Gasket form

Flange type Spiral Wound Gasket form
Flat face flange(F.F) Gasket with an outer ring
Gasket with an inner and outer ring
Raised face flange(R.F) Gasket with an outer ring
Gasket with an inner and outer ring

Bangdong Supply Ss304 Reinforced Graphite Gasket,Serrated Metal Gasket,Rubber Products Gasket.Inner and outer rings for SWG can be processed for inner and outer ring of spiral wound gasket. We make the inner and outer ring by punched for size from 1/2'' to 24''. And by lathe for out standard rings. If some material is costly, we can make by bending and welding with low cost.

Inner and Outer Ring of SWG 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 strips.

Inner and Outer Ring of SWG Specifications
We provide rings with or without zinc coating and powder coating.
With or without grooving


Asme B16.9, ASME B16.11, Asme B16.5;

JIS B2311,JIS B2312,JIS B2313,JIS B2316;

MSS SP-43, MSS SP-95, Mss Sp-75, MSS SP-79;

ISO 3419,ISO 5251,DIN 2615

SY/T 0510, SH 3408, SH3410

Size: 1/2''-48''(Butt-welding and seamless);

1/8''-4''(Threaded and socket-welding);


Wall thickness


process: Hot forming, Push, Press, Forge, Cast, etc.

Material: Carbon steel elbow, stainless steel elbow, alloy steel elbow

Carbon steel: Astm A234 WPB,



ASTM A106;

ASTM A350 LF2,

DIN St37, St45.8, St52.4,St.35.8,St.35.8/I

ASTM A333 GR.6,

ASTM A860 WPHY 70, WPHY 65, WPHY 60, WPHY 52,WPHY 46,WPHY 42,

API 5L GRB, X60, X65, X42,X52,

Stainless steel
ASTM A403 WP304, A403 WP304L, A403 WP316, A403 WP316L, A403 WP321

ASTM A182 F 304, 304L,316, 316L,904L

Alloy steel: ASTM A234 WP12, A234 WP11, A234 WP22, A234 WP5, A234 WP9

A420 WPL8, A420 WPL9

ASTM A335 P5, P9, P11, P12, P22, P91


ASTM A182 F5,F11,F22,F91

Duplex steel: A182 F51/SAF 2205/S31803,F53/SAF 2507/S32750,F60/UNS S32205,

Nickel alloy steel: Alloy 200/nickel 200/UNS S2200,Alloy 400/monel 400/UNS 4400,Alloy 600/Inconel 600/UNS,

6600,Alloy 201/nickel 201/UNS S2201,Alloy 625/Inconel 625/UNS 6625/NS336,Alloy 800/Incoloy 800/UNS S8800,

Application: Petroleum/Power/Chemical/Construction/Gas/Metallurgy/Shipbuilding etc

Shipment: Transparent oil, rust-proof black oil or hot galvanized,etc.


1.20 + years of production experience at your service.

2. The fastest delivery

3. The lowest price

4. Most comprehensive standards and materials for your choice.

5.100% export.

6. Our products EXPORT to Africa, Oceania, mid east, eastern Asia, Western Europe etc.

ASME B16.20 Metal Outer Ring and Inner Ring Spiral Wound Gasket

Shijiazhuang Bang dong Pipeline Technology Co,Ltd.


Shijiazhuang Bangdong pipe Technology Co., Ltd is located in Shijiazhuang , the capital city of Hebei , with superior geographical position and convenient transportation.It is a real professional manufacture and exporter of pipe fittings ASME ANSI B16.9, AND JIS.

The company produces and exports pipes and pipe fittings, including ELBOW/TEE/REDUCER/CAPS/FLANGE and other pipeline products . With technological production team and excellent sales staff , we keep improving efficiency regularly and ensure a better customer service experience. Our company values product quality and set up a complete quality control system and comprehensive detection means.

We insist "customer focus, honest in business, faithful in services, trusty in advertisement", Try to make the market leading products and to be reliable manufacturers by customers. Pay great attention to every detail, accurate to each number, refinement to every joint. "Give me a chance, bring you a surprise!" Sincerely welcome all customers to discuss cooperation.

Company Info
  • Company Name: Shijiazhuang Bang dong Pipeline Technology Co,Ltd.
  • Representative: Mr.Liu
  • Product/Service: Seamless Steel Pipes , Butt Weld Pipe Fittings , Forged Pipe Fittings , Steel Flanges , Pipe Elbow & Tee & Reducer , Fittings & Flanges
  • Capital (Million US $): 100
  • Year Established: 2015
  • Total Annual Sales Volume (Million US $): Below US$1 Million
  • Export Percentage: 91% - 100%
  • Total Annual Purchase Volume (Million US $): Below US$1 Million
  • No. of Production Lines: 6
  • No. of R&D Staff: 5 -10 People
  • No. of QC Staff: 5 -10 People
  • OEM Services Provided: no
  • Factory Size (Sq.meters): Below 1,000 square meters
  • Factory Location: Yanta Road,Yanshan County,Cangzhou City,HeBei Province,China
  • Contact Person: Ms. luffy
  • Tel: 86-0311-83886517
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