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Type |
Nominal diameter |
Maximum working pressure MPa(kgf/c㎡) |
Working temperature |
features | ||
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SP type |
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32~300A | +1.96(+20) -0.086(-0.88) |
80 | surface changes due to internal are mall.Excellent pressure resistance. |
Spherical | ![]() |
25~300A | +0.98(+10) -0.1(-1.0) |
90 | General spherical flexible joint. | |
S flex | ![]() |
20~300A | +0.98(+10) -0.1(-1.0) |
90 | Allows large eccentricity. Conforms with MLIT standards(S flex 20A to 40A). |
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SL flex | ![]() |
50~300A | +0.98(+10) -0.1(-1.0) |
90 | Allows large eccentricity. Conforms with MLIT standards. |
|
A1 flex | ![]() |
32~300A | +0.98(+10) -0.1(-1.0) |
90 | ||
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R type | ![]() |
20~32A | +0.05(+0.5) -0.05(-0.5) |
60 | Suitable for low-pressure piping |
40~300A | +0.1(+1.0) -0.05(-0.5) |
60 | ||||
RM type | ![]() |
Same as above | Same as above | 80 | Suitable for low-pressure piping | |
P type diameter/ |
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20~300A | +0.98(+10) -0.09(-0.9) |
90 | The most generally versatile product in Naigais product. | |
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350~600A | +0.98(+10) -0.01(-0.1) |
90 | |||
PL type
diameter/ |
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50~800A | +0.98(+10) -0.01(-0.1) |
90 | Large allowance for displacement | |
PB type | ![]() |
40~350A | +0.98(+10) -0.01(-0.1) |
90 | Fluids and residuse do not accumulate inside the product. | |
PF type
diameter/ |
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20~300A | +0.98(+10) -0.09(-0.9) |
100 |
Protects rubber with PTFE integration at the fluid contact surface. Provide the greatest chemical resistance. External rubber protects hard PTFE to increase durability. |
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350~800A | +0.29(+3.0) -0.01(-0.1) |
100 | |||
RF type | ![]() |
40~300A | +0.1(+1.0) -0.05(-0.5) |
100 |
Protects rubber with PTFE integration at the fluid contact surface. Provide the greatest chemical resistance. External rubber protects hard PTFE to increase durability. |
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SF type
diameter/ |
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40~300A | +0.02(+0.2) -0.05(-0.5) |
100 |
Protects rubber with PTFE integration at the fluid contact surface. Provide the greatest chemical resistance. External rubber protects hard PTFE to increase durability. |
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350~800A | +0.02(+0.2) -0.01(-0.1) |
100 | |||
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G flex |
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15~600A |
for high-pressure +0.49(+5) |
80 | Fluids and residues do not accumulate inside the product. |
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Please get here |
Air conditioning equipment, plumbing system |
High-pressure SP type Spherical flexible joint Cylinder S,S flex |
Protection of joints around resin water tanks. Vibration isolation for low-presure pumps and blowers. |
Low-pressure R、RM type |
Absorption of resin piping expansion and contraction. | Pressure PB type |
Vibration isolation for pumps and blowers in plant equipment. Absorption of resin piping expansion and contraction. |
Pressure P type |
Piping for plants,water supplies and sewers. Absorption of resin piping expansion and contraction. |
Pressure PL type |
Piping for corrosive gas in chemical plants. Vibration isolation for corrosion-proof pumps. Piping for hot water supply and pools. |
Internal PTEF PF、RF type |
Piping for corrosive gas in chemical plants. | Internal PTEF SF type |
Air conditioning equipment, plumbing system Isolation of piping from buildings Vibration-proofing |
G flex |
Usable without difficulty | Usable under certain conditions | Usable with PTFE type |
Water | Hot spring water | Hot-water-supply |
Cold water | Alkalis | Volatile fluids |
Cooling and heating water | Acids | Corrosive fluids |
Coolant water | Oils | Pool water |
Hot water | Adhesive fluids | |
Seawater | Industrial gases |