Single Shut-Off
Nominal Diameter
5 = 20 mm²
RECTUS Series
21KA
Chart
Technical Description
Mini industrial coupling, the world‘s most commonly used profile. Above average flow performance for liquid and gaseous media. Large band width in materials and valve variants.

Advantages
Single handed operation. Small dimensions. All variants interchangeable.

Interchangeability
RECTUS 90
CAMOZZI
EWO
KANI
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
 G 1/8 14 36 16 7 AISI 303 21KA AW10 RVX
G 1/8 14 36 16 7 AISI 316 L 21KA AW10 EVX
G 1/4 17 38 16 9 AISI 303 21KA AW13 RVX
G 1/4 17 38 16 9 AISI 316 L 21KA AW13 EVX
G 3/8 19 38 16 9 AISI 303 21KA AW17 RVX
G 3/8 19 38 16 9 AISI 316 L 21KA AW17 EVX
M 12 x 1,5 14 38 16 9 AISI 303 21KA AM12 RVX
M 14 x 1,5 17 39 16 10 AISI 303 21KA AM14 RVX
Female Thread
Female Thread
 G 1/8 14 36 16 9 AISI 303 21KA IW10 RVX
G 1/8 14 36 16 9 AISI 316 L 21KA IW10 EVX
G 1/4 17 38 16 9 AISI 303 21KA IW13 RVX
G 1/4 17 38 16 9 AISI 316 L 21KA IW13 EVX
G 3/8 19 38 16 9 AISI 303 21KA IW17 RVX
G 3/8 19 38 16 9 AISI 316 L 21KA IW17 EVX
M 12 x 1,5 17 38 16 9 AISI 303 21KA IM12 RVX
M 14 x 1,5 17 38 16 9 AISI 303 21KA IM14 RVX
Plastic Hose Connection
Plastic Hose Connection
 4 x 6 mm 14 42 16 7 6 M 10 x 1 AISI 303 21KA KO06 RVX
4 x 6 mm 14 42 16 7 6 M 10 x 1 AISI 316 L 21KA KO06 EVX
6 x 8 mm 14 42 16 7 6 M 12 x 1 AISI 303 21KA KO08 RVX
6 x 8 mm 14 42 16 7 6 M 12 x 1 AISI 316 L 21KA KO08 EVX
Panel Mount, Plastic Hose Connection
Panel Mount, Plastic Hose Connection
 4 x 6 mm 14 54 16 7 18 14 4 M 10 x 1 AISI 303 21KA KS06 RVX
4 x 6 mm 14 54 16 7 18 14 4 M 10 x 1 AISI 316 L 21KA KS06 EVX
6 x 8 mm 17 54 16 7 18 17 4 M 12 x 1 AISI 303 21KA KS08 RVX
                     
Hose Barb
Hose Barb
 4 mm 14 46 16 17 AISI 303 21KA TF04 RVX
4 mm 14 46 16 17 AISI 316 L 21KA TF04 EVX
6 mm 14 46 16 17 AISI 303 21KA TF06 RVX
6 mm 14 46 16 17 AISI 316 L 21KA TF06 EVX
8 mm 14 46 16 17 AISI 303 21KA TF08 RVX
8 mm 14 46 16 17 AISI 316 L 21KA TF08 EVX
9 mm 14 46 16 17 AISI 303 21KA TF09 RVX
9 mm 14 46 16 17 AISI 316 L 21KA TF09 EVX
10 mm 14 46 16 17 AISI 303 21KA TF10 RVX
10 mm 14 46 16 17 AISI 316 L 21KA TF10 EVX
6 mm Parker 14 50 16 20 AISI 303 21KA TP06 RVX
Panel Mount, Hose Barb
Panel Mount, Hose Barb
 5 mm 17 60 16 17 14 17 4 M 12 x 2 AISI 303 21KA TS05 RVX
6 mm 17 60 16 17 14 17 4 M 12 x 3 AISI 303 21KA TS06 RVX
8 mm 17 60 16 17 14 17 4 M 12 x 4 AISI 303 21KA TS08 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
 4 x 6 mm 12 32 7 6 12 M 10 x 1 AISI 303 21SF KO06 RXX
4 x 6 mm 12 32 7 6 12 M 10 x 1 AISI 316 L 21SF KO06 EXX
6 x 8 mm 14 32 7 6 14 M 12 x 1 AISI 303 21SF KO08 RXX
6 x 8 mm 14 32 7 6 14 M 12 x 1 AISI 316 L 21SF KO08 EXX
Panel Mount, Plastic Hose Connection
Panel Mount, Plastic Hose Connection
 4 x 6 mm 14 43 7 18 12 3 M 10 x 1 AISI 303 21SF KS06 RXX
4 x 6 mm 14 43 7 18 12 3 M 10 x 1 AISI 316 L 21SF KS06 EXX
6 x 8 mm 14 44 7 18 17 4 M 12 x 1 AISI 303 21SF KS08 RXX
                     
Hose Barb
Hose Barb
 4 mm 32 9 17 AISI 303 21SF TF04 RXX
5 mm 32 9 17 AISI 303 21SF TF05 RXX
6 mm 32 9 17 AISI 303 21SF TF06 RXX
6 mm 32 9 17 AISI 316 L 21SF TF06 EXX
8 mm 32 9 17 AISI 303 21SF TF08 RXX
8 mm 32 9 17 AISI 316 L 21SF TF08 EXX
9 mm 33 10 17 AISI 303 21SF TF09 RXX
9 mm 33 10 17 AISI 316 L 21SF TF09 EXX
10 mm 33 12 17 AISI 303 21SF TF10 RXX
10 mm 33 12 17 AISI 316 L 21SF TF10 EXX
6 mm Parker 36 12 20 AISI 303 21SF TP06 RXX

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 1/8 14 25 7 AISI 303 21SF AW10 RXX
G 1/8 14 25 7 AISI 316 L 21SF AW10 EXX
G 1/4 17 28 9 AISI 303 21SF AW13 RXX
G 1/4 17 28 9 AISI 316 L 21SF AW13 EXX
G 3/8 17 28 9 AISI 303 21SF AW17 RXX
G 3/8 17 28 9 AISI 316 L 21SF AW17 EXX
M 10 x 1 14 25 7 AISI 303 21SF AM10 RXX
M 12 x 1,5 17 28 10 AISI 303 21SF AM12 RXX
M 14 x 1,5 17 28 10 AISI 303 21SF AD14 RXX
Female Thread
Female Thread
 G 1/8 14 25 8 AISI 303 21SF IW10 RXX
G 1/8 14 25 8 AISI 316 L 21SF IW10 EXX
G 1/4 17 25 9 AISI 303 21SF IW13 RXX
G 1/4 17 25 9 AISI 316 L 21SF IW13 EXX
G 3/8 19 26 9 AISI 303 21SF IW17 RXX
G 3/8 19 26 9 AISI 316 L 21SF IW17 EXX
M 10 x 1 14 26 9 AISI 303 21SF IM10 RXX
M 12 x 1,5 17 27 10 AISI 303 21SF IM12 RXX
M 14 x 1,5 17 27 10 AISI 303 21SF IM14 RXX