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275 Series | 4NV ISO 7241 A Quick Couplings for Agriculture with Pressure Relief Valve (Steel)

275 Series | 4NV ISO 7241 A Quick Couplings for Agriculture with Pressure Relief Valve (Steel)
275 Series | 4NV ISO 7241 A Quick Couplings for Agriculture with Pressure Relief Valve (Steel)275 Series | 4NV ISO 7241 A Quick Couplings for Agriculture with Pressure Relief Valve (Steel)275 Series | 4NV ISO 7241 A Quick Couplings for Agriculture with Pressure Relief Valve (Steel)275 Series | 4NV ISO 7241 A Quick Couplings for Agriculture with Pressure Relief Valve (Steel)
CategoriesPoppet (Interchange) Couplers
InterchangePARKER MACH 2 SERIES
InterchangeDNP PKK1 SERIES
InterchangeFASTER 4NV SERIES
InterchangeSTUCCHI IRS PC
Update TimeSep 12,2025
Detail Information

275 Series 

Hydraulic Quick Coupling (Steel)

ISO-7241-A, Poppet Valve, With Pressure Eliminator

This EH series is interchangeable with PARKER MACH 2 SERIES, DNP PKK1 SERIES, FASTER 4NV SERIES, and STUCCHI IRS PC. The 275 series is a poppet-type quick coupler compatible with ISO 7241-1 ''A'' standards. Constructed from carbon steel with zinc plating, it ensures global interchangeability and is available in sizes from ¼''to 2''. Due to its versatility, the 275 series is widely used in hydraulic systems, particularly in agricultural and industrial applications. Connection under pressure, both male and female sides are allowed. Max Residual pressure up to 250 bar.

Female


Hydraulic Quick Coupling female
Other Threads/Fitting Ends Are Available Upon Request
Art. No.
Body Size (inch)
Ls(mm)
D(mm)
Hs(mm)
T
HFSFC27538-3/8"G
3/8''
57
31
S22
3/8"BSPP
HFSFC27538-3/8"NPT
3/8''
57
31
S22
3/8"NPT
HFSFC27512-1/2"G
1/2''
66
38
S27
1/2"BSPP
HFSFC27512-1/2"NPT
1/2''
66
38
S27
1/2"NPT
HFSFC27512-3/4"UNF
1/2''
66.5
38
S27
3/4"-16UNF
HFSFC27534-3/4"G
3/4''
82
48
S34
3/4"BSPP
HFSFC27534-3/4"NPT
3/4''
82
48
S34
3/4"NPT

Male

Hydraulic Quick Coupling male
Other Threads/Fitting Ends Are Available Upon Request
Art. No.
Body Size (inch)
Lp(mm)
Hp(mm)
T
HFSFP27538-3/8"G
3/8''
44
S22
3/8"BSPP
HFSFP27538-3/8"NPT
3/8''
55
S22
3/8"NPT
HFSFP27512-1/2"G
1/2''
44
S27
1/2"BSPP
HFSFP27512-1/2"NPT
1/2''
55
S27
1/2"NPT
HFSFP27512-3/4"UNF
1/2''
55
S27
3/4"-16UNF
HFSFP27534-3/4"G
3/4''
55
S34
3/4"BSPP
HFSFP27534-3/4"NPT
3/4''
55
S34
3/4"NPT

Accessories


Hydraulic Quick Coupling accessories
dust and cap for ISO-A
Dash Size
ISO Size
Art. No. 
Dust Plug for Coupler
Art. No. 
Dust Cap for Plug
Material
04
6.3
ISO-A-1/4-P-P
ISO-A-1/4-C-P
PVC
06
10
ISO-A-3/8-P-P
ISO-A-3/8-C-P
PVC
08
12.5
ISO-A-1/2-P-P
ISO-A-1/2-C-P
PVC
12
20
ISO-A-3/4-P-P
ISO-A-3/4-C-P
PVC
16
25
ISO-A-1-P-P
ISO-A-1-C-P
PVC

Technical Specifications

Dash Size
Body Size (Inch)
Max. Work PressureMale (bar)
Max. Work PressureFemale (bar)
Max. Work PressureCoupled (bar)
Min. Burst 
Pressure
Male
(bar)
Min. Burst 
Pressure
Female
(bar)
Min. Burst 
Pressure
Coupled
(bar)
Spillage
(ml)
06
3/8''
250
250
250
1000
1000
1000
1.1
08
1/2''
250
250
250
1000
1000
1000
1.8
12
3/4''
250
250
250
1000
1000
1000
8
Material:
Steel
Seals:
NBR, Seals can be customized to meet your special work condition/media
Working Temperatures:
-25 °C to 125 °C, Customizable
Surface Treatment:
MATE 500 (CRIII)
Specifications:
Series Interchange:
PARKER MACH2 SERIES, DNP PKK1 SERIES, FASTER 4NV SERIES, STUCCHI IRS PC SERIES
Valve Type:
 Poppet
Connection:
Sleeve Retraction
Disconnection:
Sleeve Retraction
Connection Under Pressure:
Allowed Up To 250 BAR

Pressure Drop

Pressure Drop

Applications

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