Double Shut-Off
Nominal Diameter
7.4 = 43 mm²
RECTUS Series
25KD
Chart
Technical Description
Safety coupling with UltraFlo technology. High flow performance. Notable for robust design and steel sleeve used with large pneumatic consumers. Additional safety locking system. This safety lock prevents unintentional disconnection. To disconnect, the plug must first be pushed further into the coupling before it can be unlocked.

Advantages
Quality coupling with small dimensions and high flow rates. Safety locking system. Double profiled plug design against wear of material during operation. Non-slip sleeve can also be operated when wearing safety gloves.

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)
0°C up to +316°C (FFKM)
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		 Brass, Nickel Plated
Brass, Nickel Plated
Brass, Nickel Plated
Brass
AISI 301
AISI 420
NBR
Plug
Plug Profile
Back Body
Valve
Spring
Seal		 Brass, Nickel Plated
Brass, Nickel Plated
Brass
AISI 301
NBR

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
 R 1/4 19 60 30 12 Standard 25KDAK13BPN
R 3/8 19 60 30 12 Standard 25KDAK17BPN
R 1/2 22 61 30 17 Standard 25KDAK21BPN
                     
Female Thread
Female Thread
 G 1/4 19 56 30 10 Standard 25KDIW13BPN
G 3/8 19 55 30 9 Standard 25KDIW17BPN
G 1/2 24 58 30 12 Standard 25KDIW21BPN
                     
Hose Barb
Hose Barb
 6 mm 19 74 30 25 Standard 25KDTF06BPN
8 mm 19 74 30 25 Standard 25KDTF08BPN
9 mm 19 74 30 25 Standard 25KDTF09BPN
10 mm 19 74 30 25 Standard 25KDTF10BPN
13 mm 19 74 30 25 Standard 25KDTF13BPN

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 22 43 9 Standard 25SDAW13MPN
G 3/8 22 43 9 Standard 25SDAW17MPN
G 1/2 22 46 12 Standard 25SDAW21MPN
                     
Female Thread
Female Thread
 G 1/4 22 43 10 Standard 25SDIW13MPN
G 3/8 22 43 9 Standard 25SDIW17MPN
G 1/2 24 46 12 Standard 25SDIW21MPN
                     

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 60 25 Standard 25SDTF06MPN
8 mm 21 60 25 Standard 25SDTF08MPN
9 mm 21 60 25 Standard 25SDTF09MPN
10 mm 21 60 25 Standard 25SDTF10MPN
13 mm 21 60 25 Standard 25SDTF13MPN