Double Shut-Off
Nominal Diameter
12 = 115 mm²
RECTUS Series
57KB
Chart
Technical Description
German industrial profile with UltraFlo technology. Optimised structure with respect to size and performance. Robust coupling for compressed air applications. Especially suitable for oscillating forces, due to steel sleeve and steel valve body. Specific application for liquids.

Advantages
Single handed operation. Minimal pressure drop. High flow valve. No damage to the valve body from collar design.

Working Pressure
PB = 35 bar, maximum static
working pressure with safety
factor of 4 to 1.

Working Temperature*
-20°C up to +100°C (NBR)
-40°C up to +120/150°C (EPDM)
-15°C up to +200°C (FKM)
depending on the medium.

*At a temperature below
-20°C and above +100°C special
seals are available on request.
Material

Coupling		 Standard
Back Body
Valve Body
Sleeve
Valve
Spring and Locking Ring
Locking Balls
Seals
Spring Plate		 Brass, Nickel Plated
Steel, Nickel Plated
Steel Hardened, Nickel Plated
Brass, Nickel Plated
AISI 301
AISI 420
NBR
Brass, Nickel Plated
Plug
Plug Profile
Back Body
Valve
Spring
Seal
Spring Plate		 Steel Hardened, Nickel Plated
Brass, Nickel Plated
Brass, Nickel Plated
AISI 301
NBR
Brass

Couplings

  Connection A Hex SW L mm D mm L1 mm L2 mm Hex1 SW B mm G mm Version Part Number
Male Thread
Male Thread
 G 1/2 34 98 40 12 Standard 57KB AW21 SPN
G 3/4 34 100 40 16 Standard 57KB AW26 SPN
G 1 41 100 40 19 Standard 57KB AW33 SPN
                     
Female Thread
Female Thread
 G 1/2 34 100 40 19 Standard 57KB IW21 SPN
G 3/4 34 100 40 16 Standard 57KB IW26 SPN
G 1 41 101 40 20 Standard 57KB IW33 SPN
                     
Hose Barb
Hose Barb
 16 mm 34 122 40 36 Standard 57KB TF16 SPN
19 mm 34 122 40 36 Standard 57KB TF19 SPN
                     
                     

Valved Plugs

  Connection A Hex SW L mm D mm L1 mm L2 mm Hex1 SW B mm G mm Version Part Number
Male Thread
Male Thread
 G 3/8 34 86 12 Standard 57SB AW17 SPN
G 1/2 34 83 12 Standard 57SB AW21 SPN
G 3/4 34 85 16 Standard 57SB AW26 SPN
G 1 41 85 19 Standard 57SB AW33 SPN
Female Thread
Female Thread
 G 1/2 34 85 19 Standard 57SB IW21 SPN
G 3/4 34 85 16 Standard 57SB IW26 SPN
                     
                     

Valved Plugs

  Connection A Hex SW L mm D mm L1 mm L2 mm Hex1 SW B mm G mm Version Part Number
Hose Barb
Hose Barb
 13 mm 34 101 28 Standard 57SB TF13 SPN
16 mm 34 107 36 Standard 57SB TF16 SPN
19 mm 34 107 36 Standard 57SB TF19 SPN