HOME > ENGLISH HOME > Product > Industrial > Rubber products > E-P JOINT

E-P JOINT

E-P JOINT

Since the release of the low-pressure-type R for elevated water tanks in 1970, E-P JOINT products (e.g., Type F which is integrated with the high-pressure P-type PTFE) have been used for various products ranging from household water pipes to chemical pipes in a wide range of fields and businesses.

Features

・Vibration control effect
E-P JOINT with a small spring rate is effective as a vibration control measure.
・Displacement absorption

E-P JOINT is excellent in terms of elasticity and shape restoration performance, so it protects pipes by absorbing any displacement such as eccentricity, declination, elongation and contraction.
・Easily installable

E-P JOINT is lightweight, compact and requires no packing.

It is easily installable because its flange is of a loose type.
・Combined effect
The E-P JOINT realizes both a vibration control effect and displacement absorbing effect.
  特長
  Type

Nominal

diameter

 Maximum working pressure
MPa(kgf/c㎡)

Working

temperature
（℃）

 features
flex

SP type

（PDF1）

 SP TYPE 32～300A +1.96(+20)
-0.086(-0.88)		 80 surface changes due to internal are mall.Excellent pressure resistance.
 
Spherical diameter 25～300A +0.98(+10)
-0.1(-1.0)		 90 General spherical flexible joint.
 
S flex Sflex 20～300A +0.98(+10)
-0.1(-1.0)		 90 Allows large eccentricity.
Conforms with MLIT standards(S flex 20A to 40A).
 
SL flex SLflex 50～300A +0.98(+10)
-0.1(-1.0)		 90 Allows large eccentricity.
Conforms with MLIT standards.
 
A1 flex A1flex 32～300A +0.98(+10)
-0.1(-1.0)		 90  
 
エキスパンションジョイント R type Rtype 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 RMtype Same as above Same as above 80 Suitable for low-pressure piping
 

P type

diameter/

（small）

（laege）

 Pタイプ 20～300A +0.98(+10)
-0.09(-0.9)		 90 The most generally versatile product in Naigais product. 
Ptype 350～600A +0.98(+10)
-0.01(-0.1)		 90
 

PL type

 

diameter/

（small）

（large）

 PLtype 50～800A +0.98(+10)
-0.01(-0.1)		 90 Large allowance for displacement
 
PB type PB防留タイプ 40～350A +0.98(+10)
-0.01(-0.1)		 90 Fluids and residuse do not accumulate inside the product.
 

PF type

 

diameter/

（small）

（large）

 PFtype 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.
 
PFtype 350～800A +0.29(+3.0)
-0.01(-0.1)		 100
 
RF type RFタイプ 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.
 

SF type

 

diameter/

（small）

（large）

 SFtype 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.
SFtype 350～800A +0.02(+0.2)
-0.01(-0.1)		 100
 
G-flex G flex
 G-flex 15～600A

for high-pressure
+0.98(+10)
-0.1(-1.0)
for middle-pressure

+0.49(+5)
-0.1(-1.0)

 80 Fluids and residues do not accumulate inside the product.
 
Adobe Reader
Please get here

Applications

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.
Piping for transporting oil,solvents and Food.Piping for pure water in IC 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

Fluids usable

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
Contact