STAUFF couplings have proven their value for many years in practical use in hydraulic systems. The excellent quality of the couplings is the result of continual product improvement in which the experiences of users have been taken into consideration, as well. Our high production standards, combined with our quality management system certified in accordance with EN ISO 9001, assures the quality of our products.


For the technical specifications of the individual couplings please refer to the following pages of the catalog.

Housing material


Steel according to EN 10277:
Couplings Series FF, FU, HP-10, IA, IB, ID, BP, HUS, PS, RK/RH,
FT, HH, HI, HT and MK with Zinc-Nickel coating,
Zinc-Plating and Thick-Film-Passivation (Chrome III)

 

Seals


NBR (Buna-N®), PTFE
ISO 3601


Operating temperature


- 20 °C ... + 100 °C / -4° F ... +212° F
with NBR (Buna-N®), PTFE
- 25 °C ... + 200 °C / -13° F ... +392° F
with FKM (Viton®)

 

Please contact STAUFF to require other
combinations of materials.

The operating pressures specified in our catalog relate to the strength of the housing components. Standardized connector shapes may have other rated pressures, which cannot automatically be applied to the particular coupling type.


Any remodeling and modification of the couplings are prohibited. By any maintenance of our couplings it’s necessary to use original STAUFF parts. In case of using of no original parts or disassembling of the couplings the warranty will be expire.


The STAUFF hydraulic couplings don’t have the 94/7/EG guidance for the using in explosive field. The couplings don’t have an own ignition source which could be a reason of inflame.

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Push-to-Connect Couplings

Push-to-Connect Couplings

STAUFF push-to-connect Couplings consist of a Female Body and a Male Tip and ensure that two tube/hose ends can be quickly and incredibly easily coupled and uncoupled without the need for a tool.


The permitted working pressures of push-to-connect Couplings are comparatively limited (depending on the respective nominal size) as they are securely locked by snap-in balls.

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Series FF/FH/FU

Flat-face Coupling acc. to ISO 16028,

Series FU Connection under pressure

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Series FH (Stainless Steel)

Flat-face Coupling acc. to ISO 16028
Resistant to aggressive environment and flow mediums

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Series FO (Stainless Steel)

Flat-face Coupling


Double shut-off valve design

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Series HP - Carbon Steel

ISO 7241-1, Series A, Push-Pull Series HU Connection under pressure
Valves close automatically if the Male Tip break away

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Series UX - Carbon Steel

ISO 7241-1, Series A, Push-Pull, Connection under pressure


Compatible with Series HP Male Tip

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Series IA - Carbon Steel

ISO 7241-1, Series A


Double shut-off valve design Compatible with Series HP

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Series IA (Stainless Steel)

ISO 7241-1, Series A


Double shut-off valve design

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Series IB - Carbon Steel

ISO 7241-1, Series B


Double shut-off valve design

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Series IB - Brass

ISO 7241-1, Series B


Double shut-off valve design

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Series IB - Stainless Steel

ISO 7241-1, Series B


Double shut-off valve design

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Series ID - Carbon Steel

Double shut-off valve design

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Series BP - Carbon Steel

ISO 5676


For use in hydraulic brake systems. The design of the coupling meets the requirements of NFU 16006 and ISO 5676

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Series HC - Carbon Steel

Flat-face Coupling


Double shut-off valve design

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Series HD - Carbon Steel

Flat-face Coupling


Double shut-off valve design

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Series HUS - Carbon Steel
 
Multi Couplings.jpg

Multi Couplings

Screw-to-Connect Couplings

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)

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Series MK

2 x 250 bar and 2 x 40 bar Working Pressure in compact or long Version available

STAUFF Screw-to-Connect Couplings are locked by manually screwing together the thread of the female body and the thread of the male tip as far as they will go.


Higher working pressures can sometimes be achieved with Screw-to-connect Couplings than with push-to-connect Couplings (depending on the respective nominal size) as the forces produced act on the thread rather than on the snap-in balls.

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Series HS - Carbon Steel

ISO 14541


For heavy-duty service conditions ben and high working pressures

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Series HS (Stainless Steel)

ISO 14541


Double shut-off valve design

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Series PS - Carbon Steel

For hammer application
Maximum pulse strength

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Series RH - Carbon Steel

Flat-face, Pipeline Coupling


Permit separation without any loss of medium

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Series FT - Carbon Steel

Flat-face Coupling, connection under pressure


Tested and certified acc. API 16 D and acc. EUB Directive # 36

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Series HR - Carbon Steel

Connection under pressure


Double shut-off valve design

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Series HH - Carbon Steel

Connection under pressure


Double shut-off valve design

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Series HH (Stainless Steel)

Stainless Steel, connection under pressure


Double shut-off valve design

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Series HI (HIB) - Carbon Steel

ISO 14540


Double shut-off valve design

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Male Type

Female Body

Series HT - Carbon Steel

Wing style


Double shut-off valve design

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Male Type

Female Body

Series HM - Carbon Steel and Brass

Wing style


Double shut-off valve design

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Male Type

Female Body

Series HV - Carbon Steel

Wing style 

Connection under pressure


Double shut-off valve design