Double Shut-Off
Nominal Diameter
6 = 30 mm²
RECTUS Series
51KB
Chart
Technical Description
German industrial profile with UltraFlo technology. Slim design. Robust steel coupling for compressed air applications – especially for oscillating forces, due to greater insert depth of plug profile and steel sleeve.

Advantages
Single handed operation. Ergonomic design. High flow valve.

Working Pressure
PB = 50 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
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 1/4 22 61 22 9 Standard 51KB AW13 SPN
G 3/8 22 61 22 9 Standard 51KB AW17 SPN
G 1/2 22 61 22 12 Standard 51KB AW21 SPN
                     
Female Thread
Female Thread
 G 1/4 22 61 22 12 Standard 51KB IW13 SPN
G 3/8 22 61 22 12 Standard 51KB IW17 SPN
G 1/2 22 61 22 13 Standard 51KB IW21 SPN
                     
Hose Barb
Hose Barb
 6 mm 21 78 22 25 Standard 51KB TF06 SPN
9 mm 21 78 22 25 Standard 51KB TF09 SPN
13 mm 21 78 22 25 Standard 51KB TF13 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
 6 mm 21 65,5 25 Standard 51SB TF06 SPN
9 mm 21 65,5 25 Standard 51SB TF09 SPN
13 mm 21 65,5 25 Standard 51SB TF13 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 1/4 19 54 8 Standard 51SB AW13 SPN
G 3/8 22 49,5 9 Standard 51SB AW17 SPN
G 1/2 22 49,5 12 Standard 51SB AW21 SPN
                     
Female Thread
Female Thread
 G 1/4 22 51,5 12 Standard 51SB IW13 SPN
G 3/8 22 51,5 12 Standard 51SB IW17 SPN