Single Shut-Off
Nominal Diameter
10.5 = 85 mm²
RECTUS Series
28KS
Chart
Technical Description
The 28KS safety coupling is the largest version of our safety range. The plug must be pushed further into the coupling before it can be disconnected, which prevents unintentional disconnection. The plug profile conforms with the CETOP RP 59 P-15 standard.

Advantages
Single handed operation. High quality coupling made of steel. Safety locking system. High flow rate due to the UltraFlo valve. Double profiled plug design against wear of material during operation.

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 and Locking Ring
Locking Balls
Seals		 Brass, Nickel Plated
Steel, Nickel Plated
Steel Hardened, Nickel Plated
Brass
AISI 301
AISI 420
NBR
Plug
Plugs Steel Hardened, 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
 R 1/2 24 69,5 28 17 Standard 28KSAK21SPN
R 3/4 27 69,5 28 17 Standard 28KSAK26SPN
                     
                     
Female Thread
Female Thread
 G 3/8 24 61,5 28 12 Standard 28KSIW17SPN
G 1/2 24 61,5 28 12 Standard 28KSIW21SPN
G 3/4 32 65,5 28 16 Standard 28KSIW26SPN
                     
Hose Barb
Hose Barb
 13 mm 24 81,5 28 25 Standard 28KSTF13SPN
16 mm 24 81,5 28 25 Standard 28KSTF16SPN
19 mm 24 81,5 28 25 Standard 28KSTF19SPN
                     

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 3/8 17 45 12 Standard 28SSAK17SXN
R 1/2 22 50 17 Standard 28SSAK21SXN
                     
                     
Female Thread
Female Thread
 G 3/8 19 39 9 Standard 28SSIW17SXN
G 1/2 24 42 12 Standard 28SSIW21SXN
G 3/4 32 47 16 Standard 28SSIW26SXN
                     

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
 10 mm 54 15 25 Standard 28SSTF10SXN
13 mm 54 15 25 Standard 28SSTF13SXN
16 mm 56 18 25 Standard 28SSTF16SXN
19 mm 56 21 25 Standard 28SSTF19SXN