Single Shut-Off
Nominal Diameter
2.7 = 6 mm²
RECTUS Series
20KA
Chart
Technical Description
Mini industrial coupling, internationally used profile. Notable for a high flow and numerous application options with various media. Frequent use in mini-pneumatics, medical technology and chemistry/pharmacy.

Advantages
Single handed operation. Small dimensions.

Interchangeability
RECTUS 91WALTHER 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		 AISI 303 AISI 316L
Back Body
Valve Body
Sleeve
Valve
Spring and Locking Ring
Locking Balls
Seals		 AISI 303
AISI 303
AISI 303
AISI 303
AISI 301
AISI 420
FKM		 AISI 316 L
AISI 316 L
AISI 316 L
AISI 316 L
AISI 316 Ti
AISI 420
FKM
Plug
Plug AISI 303 AISI 316 L

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 10 5 AISI 303 20KA AM05 RVX
M 5 9 26 10 5 AISI 316 L 20KA AM05 EVX
G 1/8 11 28 10 7 AISI 303 20KA AW10 RVX
G 1/8 11 28 10 7 AISI 316 L 20KA AW10 EVX
Female Thread
Female Thread
 M 5 9 25 10 5 AISI 303 20KA IM05 RVX
M 5 9 25 10 5 AISI 316 L 20KA IM05 EVX
G 1/8 12 28 10 7 AISI 303 20KA IW10 RVX
G 1/8 12 28 10 7 AISI 316 L 20KA IW10 EVX
Plastic Hose Connection
Plastic Hose Connection
 3 x 4 mm 9 34 10 7 5 M 7 x 0,5 AISI 303 20KA KO04 RVX
3 x 4 mm 9 34 10 7 5 M 7 x 0,5 AISI 316 L 20KA KO04 EVX
3 x 5 mm 9 34 10 7 5 M 7 x 0,5 AISI 303 20KA KO05 RVX
3 x 5 mm 9 34 10 7 5 M 7 x 0,5 AISI 316 L 20KA KO05 EVX
4 x 6 mm 9 34 10 7 5 M 8 x 0,5 AISI 303 20KA KO06 RVX
4 x 6 mm 9 34 10 7 5 M 8 x 0,5 AISI 316 L 20KA KO06 EVX
Panel Mount, Plastic Hose Connection
Panel Mount, Plastic Hose Connection
 3 x 4 mm 12 45 10 7 17 11 3 M 7 x 0,5 AISI 303 20KA KS04 RVX
3 x 5 mm 12 45 10 7 17 11 3 M 7 x 0,5 AISI 303 20KA KS05 RVX
4 x 6 mm 12 45 10 7 17 11 3 M 8 x 0,5 AISI 303 20KA KS06 RVX
                     
Hose Barb
Hose Barb
 3 mm 35 10 13 AISI 303 20KA TF03 RVX
4 mm 35 10 13 AISI 303 20KA TF04 RVX
4 mm 35 10 13 AISI 316 L 20KA TF04 EVX
5 mm 35 10 13 AISI 303 20KA TF05 RVX

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 8 25 7 5 M 7 x 0,5 AISI 303 20SF KO04 RXX
3 x 4 mm 8 25 7 5 M 7 x 0,5 AISI 316 L 20SF KO04 EXX
3 x 5 mm 8 25 7 5 M 7 x 0,5 AISI 303 20SF KO05 RXX
3 x 5 mm 8 25 7 5 M 7 x 0,5 AISI 316 L 20SF KO05 EXX
4 x 6 mm 8 25 7 5 M 8 x 0,5 AISI 303 20SF KO06 RXX
4 x 6 mm 8 25 7 5 M 8 x 0,5 AISI 316 L 20SF KO06 EXX
Panel Mount, Plastic Hose Connection
Panel Mount, Plastic Hose Connection
 4 x 6 mm 12 38 7 17 12 3 M 8 x 0,5 AISI 303 20SF KS06 RXX
                     
                     
                     
Hose Barb
Hose Barb
 3 mm 24 7 13 AISI 303 20SF TF03 RXX
3 mm 24 7 13 AISI 316 L 20SF TF03 EXX
4 mm 24 7 13 AISI 303 20SF TF04 RXX
4 mm 24 7 13 AISI 316 L 20SF TF04 EXX
5 mm 22 9 13 AISI 303 20SF TF05 RXX
5 mm 22 9 13 AISI 316 L 20SF TF05 EXX

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 AISI 303 20SF AM05 RXX
M 5 7 18 5 AISI 316 L 20SF AM05 EXX
G 1/8 11 20 7 AISI 303 20SF AW10 RXX
G 1/8 11 20 7 AISI 316 L 20SF AW10 EXX
Female Thread
Female Thread
 M 5 7 17 5 AISI 303 20SF IM05 RXX
M 5 7 17 5 AISI 316 L 20SF IM05 EXX
G 1/8 12 19 7 AISI 303 20SF IW10 RXX
G 1/8 12 19 7 AISI 316 L 20SF IW10 EXX