The Type 14340 low pressure relief valve has been designed to provide accurate pressure control in systems operating at pressures up to 100 bar, such as chemical injection applications.
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The low friction internal design produces reseating at 90% of cracking pressure or better.
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The valve is constructed from stainless steel and uses chemical resistant polymer materials in the seat to provide good low pressure seating with zero leakage
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Large area seat ensures long life and repeatable performance.
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Drawing
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Configuration options
| Part No. |
Pressure
range (bar) |
Inlet connection |
Outlet connection |
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| 14340–02 |
5 – 50 |
3/4"NPT F |
1/2"NPT F |
| 14340–03 |
5 – 50 |
1/2"NPT M |
1/2"NPT F |
| 14340–04 |
50 – 100 |
1/2"NPT M |
1/2"NPT F |
| 14340–05 |
5 – 50 |
1"NPT M |
1"NPT F |
| 14340–06 |
5 – 50 |
1/2"BSP F |
1/2"BSP F |
| 14340–07 |
5 – 50 |
3/4"NPT F |
3/4"NPT F |
| 14340–08 |
5 – 50 |
1/4"NPT F |
1/4"NPT F |
| 14340–09 |
5 – 50 |
1"BSP F |
1"BSP F |
| 14340–10 |
50 – 100 |
1/2"BSP F |
1/2"BSP F |
| 14340–11 |
5 – 50 |
3/8"NPT F |
3/8"NPT F |
| 14340–12 |
50 – 100 |
1/4"NPT F |
1/4"NPT F |
| 14340–13 |
5 – 50 |
1/4"BSP F |
1/4"BSP F |
| 14340–14 |
50 – 100 |
1/4"BSP F |
1/4"BSP F |
| 14340–15 |
50 – 100 |
3/8"NPT F |
3/8"NPT F |
| 14340–16 |
5 – 50 |
3/4"BSP F |
3/4"BSP F |
| 14340–17 |
50 – 100 |
3/4"BSP F |
3/4"BSP F |
| 14340–18 |
50 – 100 |
1"NPT M |
1"NPT F |
| 14340–19 |
50 – 100 |
3/4"NPT F |
3/4"NPT F |
Seat option
Acetol – standard
PEEK – add suffix M100
Seal options
Nitrile – standard
Viton – add suffix M089
Silicon – add suffix M065
Low temp Nitrile – add suffix M106
Kalrez – add suffix M058
Materials
316 stainless steel
Flow rate
Nominal flow 112 l/m
Working temperature
Nitrile: –20°C to +80°C.
(other materials refer to Marshalsea technical department)
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