Double Shut-Off
Nominal Diameter
7.4 = 42 mm²
RECTUS Series
25KB
Chart
Technical Description
3/8“ - 1/2“ brass coupling system with UltraFlo technology. High flow performance. Notable for robust design and steel sleeve used with large pneumatic consumers.

Advantages
Single handed operation. Robust design. High flow valve. No damage to the valve body from collar design.

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
0°C and above +316°C special
seals are available on request.
Material

Coupling		 Standard Nickel Plated
Back Body
Valve Body
Sleeve
Valve
Spring and Locking Ring
Locking Balls
Seals
Inner Sleeve
Spring Plate		 Brass
Brass
Brass
Brass
AISI 301
AISI 420
NBR
Brass
Brass		 Brass, Nickel Plated
Brass, Nickel Plated
Brass, Nickel Plated
Brass
AISI 301
AISI 420
NBR
Brass
Brass
Plug
Plug Profile
Back Body
Valve
Spring
Seal		 Brass
Brass
Brass
AISI 301
NBR		 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 23 12 Standard 25KB AK13 BPX
R 1/4 19 60 23 12 Nickel Plated 25KB AK13 BPN
R 3/8 19 59 23 10,5 Standard 25KB AK17 BPX
R 3/8 19 59 23 10,5 Nickel Plated 25KB AK17 BPN
R 1/2 22 57,5 23 9 Standard 25KB AK21 BPX
R 1/2 22 57,5 23 9 Nickel Plated 25KB AK21 BPN
M 14 x 1,5 19 59 23 10 Standard 25KB AD14 BPX
M 14 x 1,5 19 59 23 10 Nickel Plated 25KB AD14 BPN
M 16 x 1,5 19 60 23 11 Standard 25KB AD16 BPX
M 16 x 1,5 19 60 23 11 Nickel Plated 25KB AD16 BPN
M 18 x 1,5 19 60 23 11 Standard 25KB AD18 BPX
M 18 x 1,5 19 60 23 11 Nickel Plated 25KB AD18 BPN
Female Thread
Female Thread
 G 1/4 19 56 23 10 Standard 25KB IW13 BPX
G 1/4 19 56 23 10 Nickel Plated 25KB IW13 BPN
G 3/8 19 55 23 9 Standard 25KB IW17 BPX
G 3/8 19 55 23 9 Nickel Plated 25KB IW17 BPN
G 1/2 24 58 23 12 Standard 25KB IW21 BPX
G 1/2 24 58 23 12 Nickel Plated 25KB IW21 BPN
M 16 x 1,5 19 55 23 9 Standard 25KB IM16 BPX
M 16 x 1,5 19 55 23 9 Nickel Plated 25KB IM16 BPN
M 18 x 1,5 22 56 23 9 Standard 25KB IM18 BPX
M 18 x 1,5 22 56 23 9 Nickel Plated 25KB IM18 BPN
Plastic Hose Connection with Spring Guard
Plastic Hose Connection with Spring Guard
 6 x 8 mm 19 144 23 7 6 M 12 x 1 Standard 25KB KK08 BPX
6 x 8 mm 19 144 23 7 6 M 12 x 1 Nickel Plated 25KB KK08 BPN
9 x 12 mm 19 162 23 9 8 M 16 x 1 Standard 25KB KK12 BPX
                     
Plastic Hose Connection
Plastic Hose Connection
 8 x 10 mm 19 65 23 9 8 M 16 x 1 Standard 25KB KO10 BPX
8 x 10 mm 19 65 23 9 8 M 16 x 1 Nickel Plated 25KB KO10 BPN
9 x 12 mm 19 65 23 9 8 M 16 x 1 Standard 25KB KO12 BPX
9 x 12 mm 19 65 23 9 8 M 16 x 1 Nickel Plated 25KB KO12 BPN
Hose Barb
Hose Barb
 6 mm 19 74 23 25 Standard 25KB TF06 BPX
6 mm 19 74 23 25 Nickel Plated 25KB TF06 BPN
8 mm 19 74 23 25 Standard 25KB TF08 BPX
8 mm 19 74 23 25 Nickel Plated 25KB TF08 BPN
9 mm 19 74 23 25 Standard 25KB TF09 BPX
9 mm 19 74 23 25 Nickel Plated 25KB TF09 BPN
10 mm 19 74 23 25 Standard 25KB TF10 BPX
10 mm 19 74 23 25 Nickel Plated 25KB TF10 BPN
13 mm 19 74 23 25 Standard 25KB TF13 BPX
13 mm 19 74 23 25 Nickel Plated 25KB TF13 BPN
10 mm Parker 19 73 23 24 Standard 25KB TP10 BPX
10 mm Parker 19 73 23 24 Nickel Plated 25KB TP10 BPN
13 mm Parker 19 76 23 28 Standard 25KB TP13 BPX
13 mm Parker 19 76 23 28 Nickel Plated 25KB TP13 BPN
Panel Mount, Hose Barb
Panel Mount, Hose Barb
 6 mm 19 76 23 17 10 17 4 M 12 x 1 Standard 25KB TS06 BPX
6 mm 19 76 23 17 10 17 4 M 12 x 1 Nickel Plated 25KB TS06 BPN
8 mm 19 80 23 17 14 17 4 M 12 x 1 Standard 25KB TS08 BPX
8 mm 19 80 23 17 14 17 4 M 12 x 1 Nickel Plated 25KB TS08 BPN
10mm 19 76 23 17 10 17 4 M 12 x 1 Standard 25KB TS10 BPX
10mm 19 76 23 17 10 17 4 M 12 x 1 Nickel Plated 25KB TS10 BPN

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 1/8 22 44,5 9 Standard 25SB AW10 MPX
G 1/8 22 44,5 9 Nickel Plated 25SB AW10 MPN
G 1/4 22 43 9 Standard 25SB AW13 MPX
G 1/4 22 43 9 Nickel Plated 25SB AW13 MPN
G 3/8 22 43 9 Standard 25SB AW17 MPX
G 3/8 22 43 9 Nickel Plated 25SB AW17 MPN
G 1/2 22 46 12 Standard 25SB AW21 MPX
G 1/2 22 46 12 Nickel Plated 25SB AW21 MPN
M 14 x 1,5 22 44 10 Standard 25SB AD14 MPX
M 14 x 1,5 22 44 10 Nickel Plated 25SB AD14 MPN
M 16 x 1,5 22 45 11 Standard 25SB AD16 MPX
M 16 x 1,5 22 45 11 Nickel Plated 25SB AD16 MPN
M 18 x 1,5 22 45 11 Standard 25SB AD18 MPX
M 18 x 1,5 22 45 11 Nickel Plated 25SB AD18 MPN
Female Thread
Female Thread
 G 1/4 22 43 10 Standard 25SB IW13 MPX
G 1/4 22 43 10 Nickel Plated 25SB IW13 MPN
G 3/8 22 43 9 Standard 25SB IW17 MPX
G 3/8 22 43 9 Nickel Plated 25SB IW17 MPN
G 1/2 24 46 9 Standard 25SB IW21 MPX
G 1/2 24 46 9 Nickel Plated 25SB IW21 MPN
M 14 x 1,5 22 43 9 Standard 25SB IM14MPX
M 14 x 1,5 22 43 9 Nickel Plated 25SB IM14 MPN
M 16 x 1,5 22 43 9 Standard 25SB IM16 MPX
M 16 x 1,5 22 43 9 Nickel Plated 25SB IM16 MPN
M 18 x 1,5 22 43 9 Standard 25SB IM18 MPX
M 18 x 1,5 22 43 9 Nickel Plated 25SB IM18 MPN

Valved 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 with Spring Guard
Plastic Hose Connection with Spring Guard
 4 x 6 mm 19 120 7 6 M 10 x 1 Standard 25SB KK06 MPX
4 x 6 mm 19 120 7 6 M 10 x 1 Nickel Plated 25SB KK06 MPN
6 x 8 mm 19 135 7 6 M 12 x 1 Standard 25SB KK08 MPX
6 x 8 mm 19 135 7 6 M 12 x 1 Nickel Plated 25SB KK08 MPN
8 x 10 mm 19 145 8,5 8,5 M 16 x 1 Standard 25SB KK10 MPX
8 x 10 mm 19 145 8,5 8,5 M 16 x 1 Nickel Plated 25SB KK10 MPN
9 x 12 mm 19 150 8,5 8,5 M 16 x 1 Standard 25SB KK12 MPX
9 x 12 mm 19 150 8,5 8,5 M 16 x 1 Nickel Plated 25SB KK12 MPN
Plastic Hose Connection
Plastic Hose Connection
 4 x 6 mm 21 47 7 6 M 10 x 1 Standard 25SB KO06 MPX
4 x 6 mm 21 47 7 6 M 10 x 1 Nickel Plated 25SB KO06 MPN
6 x 8 mm 21 47 7 6 M 12 x 1 Standard 25SB KO08 MPX
6 x 8 mm 21 47 7 6 M 12 x 1 Nickel Plated 25SB KO08 MPN
8 x 10 mm 21 51 8,5 8,5 M 16 x 1 Standard 25SB KO10 MPX
8 x 10 mm 21 51 8,5 8,5 M 16 x 1 Nickel Plated 25SB KO10 MPN
9 x 12 mm 21 51 8,5 8,5 M 16 x 1 Standard 25SB KO12 MPX
9 x 12 mm 21 51 8,5 8,5 M 16 x 1 Nickel Plated 25SB KO12 MPN
Hose Barb
Hose Barb
 6 mm 21 60 25 Standard 25SB TF06 MPX
6 mm 21 60 25 Nickel Plated 25SB TF06 MPN
8 mm 21 60 25 Standard 25SB TF08 MPX
8 mm 21 60 25 Nickel Plated 25SB TF08 MPN
9 mm 21 60 25 Standard 25SB TF09 MPX
9 mm 21 60 25 Nickel Plated 25SB TF09 MPN
10 mm 21 60 25 Standard 25SB TF10 MPX
10 mm 21 60 25 Nickel Plated 25SB TF10 MPN
13 mm 21 60 25 Standard 25SB TF13 MPX
13 mm 21 60 25 Nickel Plated 25SB TF13 MPN
6 mm Parker 19 67,5 20,5 Standard 25SB TP06 MPX
6 mm Parker 19 67,5 20,5 Nickel Plated 25SB TP06 MPN
10 mm Parker 19 71 24 Standard 25SB TP10 MPX
10 mm Parker 19 71 24 Nickel Plated 25SB TP10 MPN
13 mm Parker 19 83 28 Standard 25SB TP13 MPX
13 mm Parker 19 83 28 Nickel Plated 25SB TP13 MPN
Panel Mount, Hose Barb
Panel Mount, Hose Barb
 6 mm 21 62 17 10 17 4 M 12 x 1 Standard 25SB TS06 MPX
6 mm 21 62 17 10 17 4 M 12 x 1 Nickel Plated 25SB TS06 MPN
8 mm 21 65 17 14 17 4 M 12 x 1 Standard 25SB TS08 MPX
8 mm 21 65 17 14 17 4 M 12 x 1 Nickel Plated 25SB TS08 MPN
10 mm 21 74 25 14 17 3,5 G 1/4 Standard 25SB TS10 MPX
10 mm 21 74 25 14 17 3,5 G 1/4 Nickel Plated 25SB TS10 MPN