Type 14450

Type 14450
Precision
Relief valve
The Type 14450 precision relief valve has been
designed to provide accurate pressure control in
systems operating at pressures up to 700 bar and
flows of up to 45 litres/min. The floating poppet design enhanced by the use of linear bearings produces charac­teristics which are non flow
dependent and ensures long life with repeatable
per­ formance.
 Floating poppet design produces reseating at
95% of cracking pressure or better; allowing
use of hardened seats for durability;
 the main spring load is not transmitted to the
seat, thus reducing distortion and wear;
 design characteristics are not flow dependent; producing a near linear response to increasing flow;
 long life and repeatable performance are ensured through the use of hardened elements operating in a linear bearing cage;
 installation and removal of system pipework is simplified by the right angled configuration.
0353
II 2 G T4
This range of relief valves conforms to Directive 94/9/EC relating to
equipment intended for use in potentially explosive atmospheres and
is ATEX (ATmosphere EXplosible) certified.
These valves also conform to the Pressure Equipment Directive 97/23/
EC. All valves are CE marked and supplied with a test certificate plus a
declar­a­tion of confor­m­ity.
Marshalsea Hydraulics has been assessed by SGS Société Générale
de Surveillance SA and certified as meeting the requirements of ISO
9001:2000 for the design, development, manufacture and servicing of
hydraulic pumps, relief valves and intensifiers.
Specialists in fluid power equipment and systems
H0
External/wetted parts
316 stainless steel
Materials
Hardened parts
431 stainless steel
Other parts
Stainless steel
Part No.
Pressure
range (bar)
Connections
Repair kit
14450 - 01103 – 2401/2” NPT
RS 14450 - 01
14450 - 02207 – 4131/2” NPT
RS 14450 - 02
14450 - 03275 – 7001/2” NPT
RS 14450 - 03
14450 - 04103 – 2401/2” BSP
RS 14450 - 04
14450 - 05207 – 4131/2” BSP
RS 14450 - 05
14450 - 06275 – 7001/2” BSP
RS 14450 - 06
Standard specifications
and model numbers
Reseat pressure – 95% of cracking pressure or better.
Proof test pressure: 1,000 bar.
Drawing giving dimensions
200mm
2 x M10
mounting
holes
56mm AF
Marshalsea Hydraulics Limited
Marshalsea House
Venture Way
Priorswood Industrial Estate
Taunton
Somerset TA2 8DE
United Kingdom
H0
Tel:
01823 331081
(+44 1823 331081)
Fax: 01823 323382
(+44 1823 323382)
E-mail [email protected]
www.marshalsea.co.uk
We reserve the right to alter specifications or withdraw products without notice
Test procedure
(Type 14450)
Each valve is tested by Marshalsea Hydraulics and issued with a unique serial number prior
to dispatch. The following describes the testing procedure.
1 Ensure compliance with internal procedure — safe system of work for manual test
rigs.
2 Visually examine for external defects, damaged threads, etc.
3 Connect to the test rig as shown.
Reference
standard guage
Budenberg manual comparator
4 Unscrew adjuster to minimum setting.
5 Raise pressure until valve functions — note performance of reseat. Repeat in increments of 2,000 PSI to the valve’s upper limit. Reseat must remain within 5% of cracking pressure at all times. Valves that fail to reseat within 5% are to be reworked.
6 Hold on pressure for approximately 2 minutes. Check for pressure decay and leakage.
7 Remove from test rig and immediately plug both ports.
8 Ensure that Test Certificate log is completed and mark valve with the information
contained on the production documentation. Affix CE mark.
9 Pass to inspection.
Specialists in fluid power equipment and systems
H0
Marshalsea Hydraulics Limited
Marshalsea House
Venture Way
Priorswood Industrial Estate
Taunton
Somerset TA2 8DE
United Kingdom
H0
Tel:
01823 331081
(+44 1823 331081)
Fax: 01823 323382
(+44 1823 323382)
E-mail [email protected]
www.marshalsea.co.uk
We reserve the right to alter specifications or withdraw products without notice
Type 14520, 14530 and 14580
Precision
Relief valves
The Type 14520, 14530 and 14580 precision relief
valves have been designed to provide accurate pressure control in systems operating at pressures of up
to 1,000 bar and flows of up to 25 litres/min. The
floating poppet design enhanced by the use of linear bearings produces characteristics which are non
flow dependent and ensures long life with repeatable performance.
 Floating poppet design produces reseating at
95% of cracking pressure or better; allowing
use of hardened seats for durability;
 the main spring load is not transmitted to the
seat, thus reducing distortion and wear;
 design characteristics are not flow dependent;
producing a near linear response to increasing
flow;
 long life and repeatable performance are ensured through the use of hardened elements operating in a linear bearing cage;
 installation and removal of system pipework is simplified by the right angled configuration.
0353
II 2 G T4
This range of relief valves conforms to Directive 94/9/EC relating to
equipment intended for use in potentially explosive atmospheres and
is ATEX (ATmosphere EXplosible) certified.
These valves also conform to the Pressure Equipment Directive 97/23/
EC. All valves are CE marked and supplied with a test certificate plus a
declar­a­tion of confor­m­ity.
Marshalsea Hydraulics has been assessed by SGS Société Générale
de Surveillance SA and certified as meeting the requirements of ISO
9001:2000 for the design, development, manufacture and servicing of
hydraulic pumps, relief valves and intensifiers.
Specialists in fluid power equipment and systems
H0
Part No.
Pressure
range (bar)
Inlet
connection
Outlet
connection
Model 14520
14520 - 01100 – 240
3/8” NPT
3/8” NPT
14520 - 02207 – 413
3/8” NPT
3/8” NPT
14520 - 03
345 – 700
3/8” NPT
3/8” NPT
14520 - 04100 – 240
3/8” BSP
3/8” BSP
14520 - 05207 – 413
3/8” BSP
3/8” BSP
14520 - 06
345 – 700
3/8” BSP
3/8” BSP
Model 14530
14530 - 01100 – 2401/4” NPT1/4” NPT
14530 - 02207 – 4131/4” NPT1/4” NPT
14530 - 03
345 – 7001/4” NPT1/4” NPT
14530 - 04100 – 2401/4” BSP1/4” BSP
14530 - 05207 – 4131/4” BSP1/4” BSP
14530 - 06
345 – 7001/4” BSP1/4” BSP
Model 14580
14580 - 01
100 – 240
3/8” Butech
3/8” NPT
14580 - 02
207 – 413
3/8” Butech
3/8” NPT
14580 - 03
345 – 700
3/8” Butech
3/8” NPT
14580 - 04
600 – 1200
3/8” Butech
3/8” NPT
14580 - 07
100 – 240
3/8” Butech
3/8”BSP
14580 - 08
207 – 413
3/8” Butech
3/8” BSP
14580 - 09
680 – 1,200
3/8” Butech
3/8” BSP
14580 - 10
345 – 700
3/8” Butech
3/8” BSP
14580 - 11
680 – 1,200
3/8” Butech
3/8” Butech
Repair kit
Standard specifications
and model numbers
RS 14520 -01
RS 14520 -02
RS 14520 -03
RS 14520 -04
RS 14520 -05
RS 14520 -06
RS 14530 -01
RS 14530 -02
RS 14530 -03
RS 14530 -04
RS 14530 -05
RS 14530 -06
RS 14580 -01
RS 14580 -02
RS 14580 -03
RS 14580 -04
RS 14580 -01
RS 14580 -02
RS 14580 -03
RS 14580 -02
RS 14580 -03
Reseat pressure – 95% of cracking pressure or better.
Proof test pressure: 1,000 bar.
External/wetted parts
316 stainless steel
Materials
Hardened parts
431 stainless steel
Other parts
Stainless steel
Marshalsea Hydraulics Limited
Marshalsea House
Venture Way
Priorswood Industrial Estate
Taunton
Somerset TA2 8DE
United Kingdom
H0
Tel:
01823 331081
(+44 1823 331081)
Fax: 01823 323382
(+44 1823 323382)
E-mail [email protected]
www.marshalsea.co.uk
We reserve the right to alter specifications or withdraw products without notice
Drawing giving
dimensions
150mm
2 x M10
mounting
holes
42 mm AF 14520/14530
56 mm AF 14580
Test procedure
(Types 14520 and 14530)
Each valve is tested by Marshalsea Hydraulics and issued with a unique serial number prior
to dispatch. The following describes the testing procedure.
1 Ensure compliance with internal procedure — safe system of work for manual test
rigs.
2 Visually examine for external defects, damaged threads, etc.
3 Connect to the test rig as shown.
Reference
standard guage
Budenberg manual comparator
4 Unscrew adjuster to minimum setting.
5 Raise pressure until valve functions — note performance of reseat. Repeat in increments of 2,000 PSI to the valve’s upper limit. Reseat must remain within 5% of cracking pressure at all times. Valves that fail to reseat within 5% are to be reworked.
6 Hold on pressure for approximately 2 minutes. Check for pressure decay and leakage.
7 Remove from test rig and immediately plug both ports.
8 Ensure that Test Certificate log is completed and mark valve with the information
contained on the production documentation. Affix CE mark.
9 Pass to inspection.
Specialists in fluid power equipment and systems
H0
Each valve is tested by Marshalsea Hydraulics and issued with a unique serial number prior
to dispatch. The following describes the testing procedure.
Test procedure
(Type 14580)
1 Ensure compliance with internal procedure — safe system of work for manual test
rigs.
2 Visually examine for external defects, damaged threads, etc.
3 Connect to the test rig as shown.
Reference
standard guage
Budenberg manual comparator
4 Unscrew adjuster to minimum setting.
5 Raise pressure until valve functions — note performance of reseat. Repeat in increments of 2,000 PSI to the valve’s upper limit. Reseat must remain within 5% of cracking pressure at all times. Valves that fail to reseat within 5% are to be reworked.
6 Hold on pressure for approximately 2 minutes. Check for pressure decay and leakage.
7 Remove from test rig and immediately plug both ports.
8 Ensure that Test Certificate log is completed and mark valve with the information
contained on the production documentation. Affix CE mark.
9 Pass to inspection.
Marshalsea Hydraulics Limited
Marshalsea House
Venture Way
Priorswood Industrial Estate
Taunton
Somerset TA2 8DE
United Kingdom
H0
Tel:
01823 331081
(+44 1823 331081)
Fax: 01823 323382
(+44 1823 323382)
E-mail [email protected]
www.marshalsea.co.uk
We reserve the right to alter specifications or withdraw products without notice