Coupling #4998645

Push-to-Connect HP Series
Push-to-Connect Couplings HP Series
Description
The double-acting sliding sleeve is fixed in the locked position by means of a pre-stressed spring. For the purpose of uncoupling it is able to slide in both axial directions. The two halves of the plug-type coupling are locked together securely by means of precision snap-in balls.

The sliding sleeve can be installed in a bulkhead with retaining rings. In this way, the carrier fulfils the function of a breakaway coupling. Should a probe be torn away from a carrier installed in this way, the system is decoupled and the valves close automatically, thus preventing damage to the hose and possible loss of oil.

In addition to the standard HP10 (size 12, 5) male tip we offer the HU12 (size 12, 5) male tip what can be connected under pressure with the standard female side HP10 (size 12, 5). Dimensions acc. to ISO 7241-1 A and ISO 5675 (for selected sizes).



Working Pressure
250 bar 25 MPa 3625 PSI

The indicated pressure ratings only apply to the coupling itself and depend on the connection type.

Working Temperature
-25 C . +100 C -13 F . +212 F

Material
Steel

Surface Finishing
Zinc-Plating and Thick-Film-Passivation (Chrome III)

The common size 12, 5 is now available in zinc-nickel!

Standard Seal Material(s)
NBR (Buna-N), PTFE

Alternative seal materials are available on request.

Multi Couplings
Multi Couplings MK Series
Description
The multi-coupling has been created for connecting and disconnecting several hydraulic lines at the same time. This is done by an operating lever the guide crank of which is designed for a minimum of operating force.

The connection of the hydraulic lines is done with flat face couplings. Due to the secial sealing it is possible to couple against trapped pressure on the male halves (max. 4x100 bar 5802 PSI)

The main features of the multi coupling are:

Safety against commutability of hydraulic lines
Quick connecting
Coupling against trapped pressure
Optimally minimized leakage during coupling process



Working Pressure
250 bar 25 MPa 3626 PSI

Material
Steel

Surface Finishing
Zinc-Nickel

Standard Seal Material(s)
NBR (Buna-N), PTFE, PU

Screw-to-Connect Couplings
Screw-to-Connect Couplings HS Series
Description
Screw-type couplings of the HS series are coupled by simply screwing the carrier and probe halves together until the thread contacts the limit stop. The coupling is designed to open both valves en bloc in this position. For this reason, and due to their rugged design, they are particularly well suited for heavy-duty service conditions in construction machinery. The range of operating pressures of this series is higher than that of the VOSWINKEL HP series.

Screw-type couplings of the HS series can be coupled on both sides under pressure of up to 50 725 PSI bar. The self-locking connection thread prevents any disengagement of the screw connection caused by vibrations. The screw sleeve of the probe, when correctly locked, must cover the black brake ring of the carrier.



Working Pressure
300 . 450 bar 30 . 45 MPa 4350 . 6525 PSI

The indicated pressure ratings only apply to the
coupling itself and depend on the connection type.

Working Temperature
-25 C . +100 C -13 F . +212 F

Material
Steel

Surface Finishing
Zinc-Plating and Thick-Film-Passivation (Chrome III)

Standard Seal Material(s)
NBR (Buna-N)

Alternative seal materials are available on request.

Plastic Couplings
Plastic Couplings KN Series
Description
Couplings of the KN series are designed for use in maintenance systems for industrial batteries. They are used for filling and ventilating of battery cells.

The couplings are made from high-quality synthetic materials with high thermal endurance and dimensional stability. Therefore, they are also suitable for use in medical applications, e. g. in dialysis devices.

The spring-loaded sliding sleeve slides in axial direction for coupling or uncoupling. Locking of the two halves of the coupling is achieved by means of precision snap-in balls.

The design of the coupling allows the use of probes with as well as without valves in carriers with valves.



Working Pressure
20 bar 2 MPa 290 PSI

The indicated pressure ratings only apply to the
coupling itself and depend on the connection type.

Material
Plastic

Standard Seal Material(s)
NBR (Buna-N), FKM (Viton)

Alternative seal materials are available on request.

STAUFF Test 20 (Type SMK20) Test Couplings with Ball Check
Test Couplings with Connection Thread M16 x 2 - SMK20
Test Couplings with ball check for normal hydraulic applications and hydraulic applications with high-viscosity fluids.

Area of Application
Monitoring and control of pressure
Venting
Sampling in high- and low-pressure systems

Advantages
Coupling at system pressure level
Leakproof connection before ball valve is open
Simple connection to measuring, control
and switching devices
Self locking metal guard cap

Media
Suitable for hydraulic oils and other mineral oil based fluids
(Check compatibility of sealing material)
For use in conjunction with other liquid or gaseous
media please consult STAUFF
In case of ultimate tightness requirements for
gaseous media, a special Gas-type is available

Working Pressure
Max. working pressure 630 bar 9137 PSI
For SMK style G and K the recommended working
pressure of fitting manufacturer has to be applied.
Joining under pressure up to 400 bar 5801 PSI max.

Materials
Metal parts made of:
Steel, zincnickel-plated = C6F (CrVI-free)
Optional:
Stainless Steel V2A (1.4305 AISI 303) on request
Stainless Steel V4A (1.4571 AISI 316Ti) on request

Ball made of Stainless Steel

Sealings made of:
P = NBR (Buna-N)
Temperature range -20 C . +100 C -4 F . +212 F
V = FPM (Viton)
Temperature range -20 C . +200 C -4 F . +392 F
E = EPDM (Ethylene Propylene Diene Rubber)
for brake fluid,
Temperature range -40 C . +150 C -40 F . +302 F

Protection Cap
The complete STAUFF-Test-20-type-SMK range is also
available with a hexagonal protection cap made of steel
or plastic protection cap.