Single Shut-Off
Nominal Diameter
2.7 = 6 mm²
RECTUS Series
91KA
Chart
Technical Description
The 91 series is a variation of the 20 series couplings. The valve has been shortened in respect that the plug seals before the coupling valve opens. In spite of the short valve the well-proven single hand operation is retained, as the ball-lock is replaced by a pin-lock. This extends the external diameter of the sleeve from 10 to 13 mm.

Advantages
Single handed operation. No loss through leakage during coupling.

Interchangeability
RECTUS 20
WALTHER 06-003
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 Nickel Plated
Back Body
Valve Body
Sleeve
Valve
Spring and Locking Ring
Pins
Seals		 Brass
Brass
Brass
Brass
AISI 301
AISI 420
NBR		 Brass, Nickel Plated
Brass, Nickel Plated
Brass, Nickel Plated
Brass
AISI 301
AISI 420
NBR
Plug
Plug Brass Brass, Nickel Plated

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
 M 5 9 26 13 5 Standard 91KAAM05MPX
M 5 9 26 13 5 Nickel Plated 91KAAM05MPN
G1/8 11 28 13 7 Standard 91KAAW10MPX
G1/8 11 28 13 7 Nickel Plated 91KAAW10MPN
Female Thread
Female Thread
 M 5 9 25 13 5 Standard 91KAIM05MPX
M 5 9 25 13 5 Nickel Plated 91KAIM05MPN
G1/8 12 28 13 7 Standard 91KAIW10MPX
G1/8 12 28 13 7 Nickel Plated 91KAIW10MPN
Hose Barb
Hose Barb
 4 mm 35 13 13 Standard 91KATF04MPX
4 mm 35 13 13 Nickel Plated 91KATF04MPN
                     
                     

Plugs

  Connection A Hex SW L mm D mm L1 mm L2 mm Hex1 SW B mm G mm Version Part Number
Plastic Hose Connection
Plastic Hose Connection
 3 x 4 mm 7 25 7 5 M 7 x 0,5 Standard 20SFKO04MXX
3 x 4 mm 7 25 7 5 M 7 x 0,5 Nickel Plated 20SFKO04MXN
3 x 5 mm 7 25 7 5 M 7 x 0,5 Standard 20SFKO05MXX
3 x 5 mm 7 25 7 5 M 7 x 0,5 Nickel Plated 20SFKO05MXN
4 x 6 mm 8 25 7 5 M 8 x 0,5 Standard 20SFKO06MXX
4 x 6 mm 8 25 7 5 M 8 x 0,5 Nickel Plated 20SFKO06MXN
Panel Mount, Plastic Hose Connection
Panel Mount, Plastic Hose Connection
 3 x 4 mm 11 38 7 17 11 3 M 7 x 0,5 Standard 20SFKS04MXX
3 x 4 mm 11 38 7 17 11 3 M 7 x 0,5 Nickel Plated 20SFKS04MXN
3 x 5 mm 11 38 7 17 11 3 M 7 x 0,5 Standard 20SFKS05MXX
3 x 5 mm 11 38 7 17 11 3 M 7 x 0,5 Nickel Plated 20SFKS05MXN
4 x 6 mm 12 38 7 17 12 3 M 8 x 0,5 Standard 20SFKS06MXX
4 x 6 mm 12 38 7 17 12 3 M 8 x 0,5 Nickel Plated 20SFKS06MXN
Hose Barb
Hose Barb
 3 mm 24 7 13 Standard 20SFTF03MXX
3 mm 24 7 13 Nickel Plated 20SFTF03MXN
4 mm 24 7 13 Standard 20SFTF04MXX
4 mm 24 7 13 Nickel Plated 20SFTF04MXN
5 mm 22 9 13 Standard 20SFTF05MXX
5 mm 22 9 13 Nickel Plated 20SFTF05MXN
Panel Mount, Hose Barb
Panel Mount, Hose Barb
 3 mm 12 45 13 18 11 4 M 7 x 0,5 Standard 20SFTS03MXX
3 mm 12 45 13 18 11 4 M 7 x 0,5 Nickel Plated 20SFTS03MXN
4 mm 12 45 13 17 11 3 M 7 x 0,5 Standard 20SFTS04MXX
4 mm 12 45 13 17 11 3 M 7 x 0,5 Nickel Plated 20SFTS04MXN

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
 M 5 7 18 5 Standard 20SFAM05MXX
M 5 7 18 5 Nickel Plated 20SFAM05MXN
G 1/8 11 20 7 Standard 20SFAW10MXX
G 1/8 11 20 7 Nickel Plated 20SFAW10MXN
Female Thread
Female Thread
 M 5 7 17 5 Standard 20SFIM05MXX
M 5 7 17 5 Nickel Plated 20SFIM05MXN
G 1/8 12 19 7 Standard 20SFIW10MXX
G 1/8 12 19 7 Nickel Plated 20SFIW10MXN