Directions for use of gasket

(i) Radiation resistance
Category Name VALQUA No. Main components Radiation resistance(Gy)
Soft gasket Synthetic rubber (EPDM) Gaskets 2010 -(EPDM) EPDM 5×105
Fluoro Rubber Gasket 4010 FKM 1×104
VALQUAFOIL Gasket VF-30 Expanded Graphite 1×106
VF-35E Expanded Graphite
+SUS

BLACK HYPER
Compressed Non-Asbestos Fiber Sheet

GF300
6500
6500AC
6501

Graphite+PTFE
Organic fiber
+Inorganic fiber
+Synthetic rubber binder

1×103

1×103
(reference)
Compressed Asbestos Fiber Sheet
(1500)
(1500AC)
Asbestos
+Synthetic rubber binder
1×104
Pure PTFE sheet gasket 7010 PTFE 1×102
Pure FEP sheet gasket 7010-FEP FEP 1×104
Special filler inserted PTFE Solid Gasket 7020 PTFE
+Inorganic filler
1×102
Fluorocarbon resin envelope gasket
(for radiation resistance)
N7030-FEP N7031-FEP
N7035-FEP
FEP
+Compressed Non-Asbestos Fiber Sheet
+Inorganic felt
1×103
Semi-metallic gasket Spiral Wound Gasket 8590 Series Non-asbestos inorganic filler+Metal-hoop 1×106
6590 Series Expanded graphite filler
+Metal-hoop
7590 Series PTFE filler+Metal-hoop 1×102
Metal jacketed gasket N510 Series Various metals
+Non-asbestos cushion materials
---
N520 Series
Metal Gasket Metal serrated gasket 540 Series Stainless steel, Monel, Nickel, Inconel, etc. ---
Metallic Flat Gasket 560 Series
Ring Joint Gasket 550 Series


(ii) Direction for use per plant
① For vacuum

 


② Shipbuilding-Non-asbestos gaskets to cargo piping systems(based on JIS F 0602)
Fluid category Usage condition  Gasket

Pressure
MPa

Temperature
(℃)
Name Symbols VALQUA No. Thickness
(mm)
Oil fluids 1.57
0.98
-25
~ 120
Non-asbestos compressed fiber sheet HJ 6500 1.0 ~2.0
0.49 Non-asbestos compressed fiber sheet HJ 6500 1.0 ~2.0
Glass fiber filled PTFE gasket FS 7010-2NO 1.5 ~3.0
Animal/Plant oil fluids 1.57
0.98
-25
~ 120
Non-asbestos compressed fiber sheet HJ 6500 1.0 ~2.0
PTFE envelope gasket FHS,FHF
FHM
N7030Series 2.8
0.49 Non-asbestos compressed fiber sheet HJ 6500 1.0 ~2.0
Glass fiber filled PTFE gasket FS 7010-2NO 1.5 ~3.0
PTFE envelope gasket(2) FHS,FHF
FHM
N7030Series 2.8
Solvent fluids 1.57
0.98
-25
~ 120
PTFE envelope gasket(1) FHS
FHF
FHM
N7030Series 2.8
0.49 Glass fiber filled PTFE gasket FS 7010-2NO 1.5 ~3.0
PTFE envelope gasket(1) FHS,FHF
FHM
N7030Series 2.8
Liquid gas 1 1.96
1.57
-48
~ 80
Metal inserted expanded graphite gasket MK VF35E,VFT35E 0.5 ~1.6
Non-asbestos filler spiral wound gasket HUC 8591V 4.5
Non-asbestos filler spiral wound gasket HUD 8596V 4.5
Expanded graphite filler spiral wound gasket KUD 6596V 4.5
PTFE filler spiral wound gasket FUD 7596V 4.5
0.98 Non-asbestos compressed fiber sheet HJ 6500 1.0 ~2.0
Metal inserted expanded graphite gasket MK VF35E,VFT35E 0.5 ~1.6
Non-asbestos filler spiral wound gasket HUC 8591V 4.5
Non-asbestos filler spiral wound gasket HUD 8596V 4.5
Expanded graphite filler spiral wound gasket KUD 6596V 4.5
PTFE filler spiral wound gasket FUD 7596V 4.5
0.49 Non-asbestos compressed fiber sheet HJ 6500 1.0 ~2.0
Metal inserted expanded graphite gasket MK VF35E,VFT35E 0.5 ~1.6
Liquid gas 2 0.98 -196
~ 80
Metal inserted expanded graphite gasket MK VF35E,VFT35E 0.5 ~1.6
Expanded graphite filler spiral wound gasket KUD 6596V 4.5
0.49 Metal inserted expanded graphite gasket MK VF35E,VFT35E 0.5~1.6

Note
(1) PTFE envelope gaskets such as No. N7030(S), N7031(S) and N7035(S) are recommended under the pressure of 1.57 MPa. No. 8591V, No. 7596V and No.7010-2NO are recommended depending on the operating pressure since use of No. N7030 series may cause damage to the cushion materials of the gasket when they are used for pipes inside a tank.
(2) Please consult VALQUA when gasket complying with the Food Sanitation Act is needed.



(Details of fluid category)
Fluid Category Liquid Category
Oil fluids Crude oil, naphtha, gasoline, diesel oil, kerosene, lubricating oil, heavy oil, hydraulic oil, mineral oil, jet fuel, lubricating oil additive
Animal/Plant oil, Fluids linseed oil, tung oil, soybean oil, turpentine oil, corn oil, cottonseed oil, beef tallow oil, lard oil, fish oil, molasses
Solvent fluids benzene, toluene, xylene, ethylene dichloride, styrene, methanol, cumene, ethylbenzene, ethylene glycol
Liquid gas 1 propane, butane, propylene, butadiene
Liquid gas 2 natural gas, ethane, ethylene, nitrogen

Note
(1) There is a possibility that solvent additives are in these fluids. Please consult VALQUA for the possible bad effects on the gasket depending on the adulteration amount of the additives.
(2) Thus molasses does not belong to the animal plant oil category, it is categorized as it is for convenience.
(3) Isopropyl Benzene, and its chemical formula is C5H5CH(CH3)2. (It is described as cumene)
(4) Ethylene glycol does not belong to solvents, it is categorized as it is for the convenience.



③ Shipbuilding-Piping system in machinery space-Application for gaskets(based on JIS F 7102)
Fluid category Usage condition Gasket(3)
Pressure(1)
MPa
Temperature
(℃)
Name Symbols VALQUANo. Thickness
(mm)
Steam 6.1 520 Expanded graphite filler lined spiral wound gasket for high temperature (with inner and outer rings) KKUD 8596VL 4.5
3.9
2.9
450 Expanded graphite filler spiral wound gasket (with inner and outer rings)(2) KUD 6596V(2) 4.5
400 Non-asbestos filler spiral wound gasket (with inner and outer rings) HUD 8596V 4.5
2
1.6
350 Metal inserted expanded graphite gasket MK VF35E 1.6
220 Non-asbestos filler spiral wound gasket (with inner and outer rings) HUD 8596V 4.5
  Non-asbestos filler spiral wound gasket (with outer rings) HUC 8591V 4.5
  Expanded graphite filler spiral wound gasket (with inner and outer rings)(2) KUD 6596V 4.5
0.5 158 Non-asbestos compressed fiber sheet gasket HJ 6500 1.0 or 1.5
Exhaust gas 0.5 500 Ceramic fiber cloth gasket with metal reinforcement KHK N314 3~6
0.5 400 Glass fiber cloth gasket GK N214 3~6
Metal inserted expanded graphite gasket MK VF35E 1.6
Air 2.9
2.0
100 Expanded graphite filler spiral wound gasket (with inner and outer rings)(2) KUD 6596V 4.5
100 Non-asbestos filler spiral wound gasket (with inner and outer rings) HUD 8596V 4.5
  Non-asbestos filler spiral wound gasket (with outer rings) HUC 8591V 4.5
  Metal inserted expanded graphite gasket MK VF35E,VFT35E 1.6
  Non-asbestos compressed fiber sheet gasket HJ 6500 1.0 or 1.5
1.6
1.0
0.5
100 Non-asbestos compressed fiber sheet gasket HJ 6500 1.0 or 1.5
100
100
Feed water
Boiler water
Blowoff
Sweet water
Condensed water
Seawater
Bilge
Ballast
7.8 250 Non-asbestos filler spiral wound gasket (with inner and outer rings) HUD 8596V 4.5
4.4 200 Non-asbestos filler spiral wound gasket (with inner and outer rings) HUD 8596V 4.5
Non-asbestos filler spiral wound gasket (with outer rings) HUC 8591V 4.5
2.9
2.0
200 Non-asbestos filler spiral wound gasket (with inner and outer rings) HUD 8596V 4.5
150 Non-asbestos filler spiral wound gasket (with outer rings) HUC 8591V 4.5
  Metal inserted expanded graphite gasket MK VF35E,VFT35E 1.6
1.6 100 Non-asbestos compressed fiber sheet gasket HJ 6500 1.0 or 1.5
Metal inserted expanded graphite gasket MK VF35E,VFT35E 1.6
0.5 50 Cloth-inserted rubber sheet NG 16 1.5
Non-asbestos compressed fiber sheet gasket HJ 6500 1.0 or 1.5
Fuel oil
Cargo oil
Lubricating oil
2.9
1.6
150 Non-Asbestos Spiral Wound Gasket (with inner and outer rings) HUD 8596V 4.5
150 Non-Asbestos Spiral Wound Gasket (with outer rings) HUC 8591V 4.5
  Metal inserted expanded graphite gasket MK VF35E,VFT35E 1.6
1.0 135 Non-asbestos compressed sheet gasket HJ 6500 1.0 or 1.5
Metal inserted expanded graphite gasket MK VF35E,VFT35E 1.6
Heat trnsfer fluid 1.0 330 Expanded graphite spiral wound gasket(2) KUD 6596V 4.5
Vacuum
(1)
0.006 abs. (722 torr) 220 Non-Asbestos Spiral Wound Gasket (with inner and outer rings) HUD 8596V 4.5
Non-Asbestos Spiral Wound Gasket (with outer rings) HUC 8591V 4.5
Metal inserted expanded graphite gasket MK VF35E,VFT35E 1.6
0.005 abs. 100 Non-asbestos compressed sheet gasket HJ 6500 1.0 or 1.5
Metal inserted expanded graphite gasket MK VF35E,VFT35E 1.6

Note

(1) As to pressures, the pressure for non-asbestos compressed fiber sheet gasket and the pressure for vacuum indicate actual working pressure and other pressures indicate flange pressure rating.
(2) Expanded graphite filler spiral wound gasket should be used at 450℃ or lower.
(3) Ring gasket (inside bolt circle gasket) should be used.


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