Main application

  • Valves
  • Sootblowers

Material of Construction

Part Material
1 Nut/Boltextension 1.4301
2 Springcup 1.4305
3 Spring 1.8159 galCd
4 Springcover 1.4305

Note

For best functionality and longlasting performance use White Assembly Paste.

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PROLOAD LIVELOADINGSYSTEM
New Generation encapsulated Disc Spring System with defined compression length

Advantages

  • Disc springs slide on an even machined surface rather on a bolt thread
  • Disc springs are encapsulated by outer cylinder against environmental impact
  • Disc springs never get over-compressed
  • No torque measuring tools necessary
  • Relaxation of the springset by volumeloss of the packing stack will show on an inspection gap.
  • Simply tighten the nut until the gap closes
  • PROLOAD Live Loading System acts as a prevention against mechanical destruction of packing
  • Extended nut screws on the existing valve bolt and eliminates the need for new longer bolts
Data sheet PDF-Download

Dimensions

M in (mm) Order-Type D in (mm) H in (mm) h1 in (mm) SW s in (mm) Bolt center to stem min (mm) FE (N) ME (Nm)
M8 L8 22 20.2 14.5 13 14.8 15 4,660 7
M8 L8HI 22 20.2 14.5 13 14.8 15 9,256 14
M10 L10 26 23 16 17 19.4 18 4,722 9
M10 L10HI 26 30.5 23.3 17 19.4 18 9,440 18
M10 L10Sootblower 26 30.5 23.3 17 19.4 18 4,722 9
M12 L12 32 24 17.2 19 21.9 22 9,346 20
M12 L12HI 32 32 25.2 19 21.9 22 18,224 40
M12 L12Sootblower 32 32 25.2 19 21.9 22 9,346 20
M14 L14 38 28 18 22 25.3 26 16,254 48
M14 L14HI 38 36 26 22 25.3 26 31,695 96
M16 L16 38 28 18 24 27.6 27 16,254 48
M16 L16HI 38 36 26 24 27.6 27 31,695 96
M18 L18 45 63.5 48.5 30 34.5 31.5 40,258 136
M18 L18HI 45 63.5 48.5 30 34.5 31.5 50,254 170
M20 L20 45 63.5 48.5 30 34.5 32.5 40,258 136
M20 L20HI 45 63.5 48.5 30 34.5 32.5 50,254 170
M22 L22 60 72 57 41 47 41 38,530 144
M24 L24 60 72 57 41 47 42 38,530 144

Dimension

M in (inch) Order-Type D in (inch) H in (inch) h1 in (inch) s in (inch) Bolt center to stem min (inch) FE (N) ME (ftlb)
5/16" L5/16" 0.87 0.80 0.57 0.58 0.59 1,048 5.2
5/16" L5/16"HI 0.87 0.80 0.57 0.58 0.59 2,081 10.3
3/8" L3/8" 1.02 0.91 0.63 0.76 0.71 1,062 6.6
3/8" L3/8"HI 1.02 1.20 0.92 0.76 0.71 2,122 13.3
3/8" L3/8"Sootblower 1.02 1.20 0.92 0.76 0.71 1,062 6.6
7/16" L7/16" 1.26 0.98 0.68 0.86 0.87 2,101 14.8
7/16" L7/16"HI 1.26 1.31 0.99 0.86 0.87 4,097 29.5
1/2" L1/2" 1.26 0.98 0.68 0.86 0.87 2,101 14.8
1/2" L1/2"HI 1.26 1.31 0.99 0.86 0.87 4,097 29.5
1/2" L1/2"Sootblower 1.26 1.31 0.99 0.86 0.87 2,101 14.8
9/16" L9/16" 1.50 1.10 0.71 1.00 1.02 3,654 35.4
9/16" L9/16"HI 1.50 1.42 1.02 1.00 1.02 7,125 70.8
5/8" L5/8" 1.50 1.10 0.71 1.09 1.06 3,654 35.4
5/8" L5/8"HI 1.50 1.42 1.02 1.09 1.06 7,125 70.8
3/4" L3/4" 1.77 2.30 1.91 1.36 1.28 9,050 100.3
3/4" L3/4"HI 1.77 2.30 1.91 1.36 1.28 11,298 125.4
7/8" L7/8" 2.36 2.83 2.24 1.85 1.61 8,662 106.2
1" L1" 2.36 2.83 2.24 1.85 1.65 8,662 106.2
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