Metallic Gaskets

Spiral Wound Gaskets

Spiral Wound Gaskets


Spiral Wound Gaskets

Description

Spitmaan Spiral Wound gaskets are manufactured with alternate layers of preformed metallic windings and pliant fillers that are spirally wound. The filler material seals the internal pressure across a wide range of media applications. Spitmaan Gaskets are certified for emission control applications and will seal flanges where temperature, pressure, vibration, or flow rates are beyond the capability of conventional jointing materials. For standard gaskets, the dimensions, manufacturing, and testing parameters are governed by ASME B16.20.

Style OC- This gasket is constructed with an outer centering ring and inner circular metal/filler winding.

Style OCI - This gasket is constructed with an outer centering ring, an inner ring, and a circular metal/filler winding in between.

Style CI - The Gasket is constructed with circular outer metal/filler winding and with an inner ring.

Features and Benefits 

  • Gaskets are made in a wide variety of sizes and shapes.
  • Combinations of metal winding strips and filler are selected to suit the fluid media and other operating conditions.
  • Quick to install and remove.
  • Operate at temperatures from cryogenic up to 650 ° C (Can be increased for specific applications)
  • System pressures from high vacuum to over 2500 psi.  (Can be increased for specific applications)
  • Support rings, inside and/ or outside of spiral winding, make the gasket suitable for high-line pressure on flat or raised flange faces

Application guidelines 

  • Applications include Oil Refineries, Chemical, Petrochemical, Marine, Power Plants, Pulp, Pipelines, Pressure vessels on steam, metallurgical, nuclear, and hydraulic plants including heat exchangers. Spitmaan gaskets are recommended for flange joints where bolt loading is limited.
  • Suitable for standard ASME B 16.20a: 1994, ASME B 16.5, ASME B16.5 Series A (MSS- SP 44), ME B16.5 Series B (ASME B16.47 supersedes API 605), IS 7719: 2013, DIN & JIS flanges. 
  • Non-standard dimensions Ø10 mm up to Ø3500 mm. 
  • Non-circular manholes, handholes, tubecaps, and plugs for boilers and vessels.

Standard filler materials 

Flexible Graphite (GR)

Expanded PTFE (ePTFE)

Sintered PTFE (PTFE)

Other fillers on request

                                             

 Available winding and ring materials 

• 304 

• 304L 

• 316 

• 316L 

• 310 

• 321 

• 347

     • Inconel®

• Incoloy® 

• B2 & C276 

• Monel® 

• 17-7 PH



• Alloy 20 

• Duplex®

• CS

Part Number: SWGGRW ( Only Winding & Graphite Filler ), SWGGRWIR ( with Graphite Filler & Inner Ring), SWGGRWIROR ( with Graphite Filler

&  Inner Ring & Outering). While ordering please suffix with the material of Winding, Inner Ring, and Outer ring, Size in mm. Class of gasket to follow SWG

eg. SWG/0150/PTFE/316W/316IR/CSOR/0015 – Spiral Wound gasket,Class #150,PTFE filler, SS316 winding, SS316Inner Ring & CS Outer ring, 15 mm 

 

1

SWG

Spiral Wound 

     

2

0150

Class 150

 

0300

Class 300

 

0600

Class 600

 

0900

Class 900

 

1500

Class 1500

 

2500

Class 2500

     

3

GR

Graphite Filler

 

PTFE

PTFE Filler

 

EPTFE

Expanded PTFE

 

SP

Special on request

     

4

316L

316L Winding

 

304L

304L Winding

 

321

321 Winding 

     

5

IR/OR

Inner Ring/Outer Ring

 

(Blank)

No Inner Ring

 

(Blank)

No Outer Ring

   

316

316 Inner/Outer Ring

 

304

304 Inner/Outer Ring

 

CS

CS Outer Ring

 

321

SS321 Inner/Outer Ring

 

Monel

Monel Outer Ring

 

Inconel

Inconel Inner/Outer Ring