Single Shut-Off
Nominal Diameter
8 = 50 mm²
RECTUS Series
33KA
Chart
Technical Description
Steel industrial coupling with high flow performance due to UltraFlo technology. Interchangeable with Atlas Copco profile. Specially suited to use with gaseous media in industry.

Advantages
Single handed operation. Extremely high flow performance from optimum valve design.

Interchangeability
ATLAS COPCO QIC 10
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
Back Body
Valve Body
Sleeve
Valve
Spring
Locking Balls and Pins
Seals
Innere Sleeve		 Brass, Nickel Plated
Steel, Zinc Plated
Steel Hardened, Nickel Plated
Brass
AISI 301
AISI 420
NBR
Brass
Plug
Plug Steel Hardened, Zinc 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
 R 1/4 19 60 23 12 Standard 33KAAK13SPN
R 3/8 19 59 23 12 Standard 33KAAK17SPN
R 1/2 22 60 23 17 Standard 33KAAK21SPN
                     
Female Thread
Female Thread
 G 1/4 19 55 23 10 Standard 33KAIW13SPN
G 3/8 19 54 23 9 Standard 33KAIW17SPN
G 1/2 24 57 23 12 Standard 33KAIW21SPN
                     
Hose Barb
Hose Barb
 6 mm 19 73 23 25 Standard 33KATF06SPN
8 mm 19 73 23 25 Standard 33KATF08SPN
10 mm 19 73 23 25 Standard 33KATF10SPN
13 mm 19 73 23 25 Standard 33KATF13SPN

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 52 14 25 Standard 33SFTF06SXN
8 mm 52 14 25 Standard 33SFTF08SXN
10 mm 52 15 25 Standard 33SFTF10SXN
13 mm 52 15 25 Standard 33SFTF13SXN

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
 R 1/8 14 40 9 Standard 33SFAK10SXN
R 1/4 14 42 12 Standard 33SFAK13SXN
R 3/8 17 42 12 Standard 33SFAK17SXN
R 1/2 22 47 17 Standard 33SFAK21SXN
Female Thread
Female Thread
 G 1/8 14 34 7 Standard 33SFIW10SXN
G 1/4 17 37 9 Standard 33SFIW13SXN
G 3/8 17 37 9 Standard 33SFIW17SXN
G 1/2 24 42 12 Standard 33SFIW21SXN