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Monel 400 Spiral Wound Gasket with Inner and Outer Ring
  • Monel 400 Spiral Wound Gasket with Inner and Outer RingMonel 400 Spiral Wound Gasket with Inner and Outer Ring

Monel 400 Spiral Wound Gasket with Inner and Outer Ring

As the professional manufacturers, Kaxite would like to provide you Monel 400 Spiral Wound Gasket with Inner and Outer Ring. And we will offer you the best after-sale service and timely delivery. From below content, you will have much more knowledge about how the spiral wound gasket work, made and install. Also about the specification, dimension, advantages, pressure rating and the application of the spiral wound gasket.

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Product Description

Monel 400 Spiral Wound Gasket With Inner and Outer Ring

Monel 400 Spiral wound gasket with inner and outer ring is the type of Spiral Wound Gasket which has both Inner and out ring, and the winding ring is Monel 400 stainless steel tape with graphite or PTFE Filler. Among the different types of Spiral wound gasket, Spiral wound gasket with Inner and outer centering ring has superior sealing effect and quality. This type gasket has an inner together with outer centering support ring, the inner ring not only provide the benefit to prevents radial flow of soft fillers, and reduces turbulence, but also provides for a heat shield once the spiral wound gaskets is subjected to high temperatures. And the outer centering ring helps to protect the spiral wound factor, and offers further security and safety against the gasket's blow-out, together with the inner ring.

Spiral Wound Gasket with Inner and Outer rings

Advantages of Spiral Wound Gasket Outer Centering Ring

The spiral wound gasket outer centring ring provides the following advantages
• Serves as compression limiter avoiding overloading and overcompression of the spiral wound component.
• Reduces radial-flow of smooth fillers, like PTFE
• Additional protection against gasket blow-out.
• Protection of the spiral wound element.
• Perfect position between the bolts.

For these reasons it is actually preferable to work with spiral wound gasket with outer centring rings. The the outer ring is marked with nominal size, pressure rating class, standard specication and materials.

CGI Spiral Wound Gasket with Inner and Outer ring

Advantages of the Inner Ring of Spiral Wound Gasket

The spiral gasket inner ring provides the adhering to benefits
• Provides a heat defend when the spiral wound gasket is subjected to high temperatures
• Avoidance of over-compression at elevated seating loads in high-pressure service
• Decreases turbulence-minimising flow resistance and crevice corrosion.
• Development of the load circulation within the gasket
• Prevents radial-flow of soft fillers, like PTFE

Spiral Wound Gasket Selected Materials

Spiral Wound Gasket Selected Material

Spiral Wound Gasket Torque Value Chart

To Install and use the spiral wound gasket correctly, we need to know the torque values as it is really important. Torque values limit minimum and maximum gasket seating stresses based upon different pressure class according to ASME B16.20 standard and certain operating conditions. (maximum pressure ratings for given pressure class, not hydrotest pressure). Extreme operating conditions such as high temperature may reduce bolt yield strength. Caution should be used in these applications. The below torque values are for general use only. For critical or extreme applications (high temperature and pressure), consult with us for more information

Flange Size (inch)

Suggested Torque Value (Ft-Lbs) for CG Spiral wound gasket with outer ring
Class 150 Class 300 Class400 Class 600 Class 900 Class 1500 Class 2500
1/2 30-40 30-40
70-120 70-120
3/4 30-40
60-70 60-70
1 30-40 60-70 60-70
110-190 110-190 110-160
1 1/2 30-60 100-120 100-120
110-190 135-190 210-250
2 60-90 60-70 60-70
110-190 130-190 220-250
2 1/2 60-110 100-120
170-290 190-290 300-360
3 90-120 100-120
140-230 265-360 460-500
3 1/2 60-90 100-120
160-190 170-210

4 70-120 100-140 160-200 190-240 255-420 415-520
5 100-160 110-160 210-260 280-360 360-600 585-800
6 130-200 110-160 190-240 260-330 300-500 530-680
8 180-200 180-260 310-400 400-510 485-800 845-1100
10 170-320 250-290 340-440 500-590 505-800 1565-2000
12 240-320 360-420 510-640 500-610 570-850

14 300-490 360-420 500-890 680-800 630-940

16 310-490 500-590 680-800 800-940 910-1290

18 500-710 500-680 680-810 1100-1290 1570-2340

20 430-710 500-740 800-940 1100-1290 1740-2570

24 620-1000 800-1030 1500-1750 2000-2340

4 Tips for How To Install the Spiral Wound Gaskets

In order to guarantee the the best possible service life of metal gasket components, it is not only significant to decide on the suitable product to the application but to install and sustain it accurately. These tips are designed to help the end user within the installation of spiral wound gasket materials.

Tips 1: Make Sure the Flange in Good Condition

Get rid of the old gasket and check that the flange faces tend to be clean and totally free of indentations and scoring. Radial (cross face) scoring is actually a particular issue and can bring about joint leakage. For spiral wound gaskets, a surface finish which is between 3.2μm to 6.3μm Ra (125 to 250 micro inch) is required. Use a surface comparator to take a look flange finishes. Make sure that the flange faces are parallel or that the pipework is actually sufficiently adaptable to allow the flanges to be dragged parallel and concentric without extreme bolt loads.

Tip 2: Gaskets Always New

Only use a new gasket is quite important. Make certain that the gasket is in excellent condition and that the dimensions are usually right for the class and measurements of the flanges, and do not use jointing compounds, oil or lubricants with metallic gasket elements. These materials can impact the contact friction between the gasket and the flange and can bring about creep and premature joint failure

If there is a requirement to fix the gasket to the flange prior to assembly (e.g. large vertical flanges) then a light dusting of spray adhesive such as 3M 77 spray can be utilized. The adhesive ought to be applied sparingly and in isolated places, and must be compatible with the fluid medium.

Tips 3: Bolt the gasket Correctly

Ensure the bolt and nut threads are thoroughly clean. Apply bolt lubrication to the bolt and nut threads and to the face of the nut to be tightened. Do not apply grease or bolt lubricant to the joint face. After cleaning and lubrication it should be possible to run the nut along the full length of the bolt by hand. If this is not possible the bolts and nuts should be refurbished or replaced. Scrape, wire brush or file as necessary the back face of each flange where the bolt heads and nuts are to sit, ensuring that the surfaces are clean and flat, If possible use hardened flat washers to ensure even transfer of the load.

Tips 4: The steps for installing the spiral wound gaskets

• Ensure that the spiral wound gasket is put in centrally
• It is recommended that the mounting bolts are tightened by using a operated strategy such as torque or stress. If utilizing a torque wrench, guarantee that it must be accurately adjusted
• Firm up mounting bolts within a superstar-like traversing pattern in the pursuing series
• Finger tighten nut products
• Tighten up to 30% of your final stress
• Tighten to 60% from the last load
• Tighten to whole fill
• Make a final tightening series, functioning throughout the flange, tightening each bolt in turn up until the specific torque is achieved

Install equipment should consist of

• calibrated torque wrench or other tightening device
• wire brush
• hard hat
• safety goggles and/or face shield
• lubricant
• other plant specified equipment
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