K51 K52 K53 Series Dome Loaded Pressure Regulator

The K50 series are a dome loaded pressure regulators with a balanced valve, which provides a flow of process fluid at controlled pressure. It’s heavy duty construction makes it suited for normal and arduous conditions and environments. The outlet pressure is set by pressurising the dome through the double needle valves. This design allows for easy control and minute pressure adjustments. A flexible diaphragm separates the gas in the dome from the process fluid ensuring segregation of media.

Applications:

• Marine industries
• Gas & Oil industries
• Off shore / aggressive environments
• Nitrogen plants
• Brewery plants
• Pressure test rigs
• Mining Industries
• High flow purge systems
• Steel industries

Medium:

Liquid and gases

Maximum inlet pressure:

• K51: 420 barg (6092 pisg)
• K52 & K53: 310 barg (4496 psig)

Outlet pressure range:

• K51: 0,5 … 300 barg (7.3 … 4351 psig)
• K52 & 53: 0,5 … 172 barg (7.3 … 2494 psig)

Dome loading:

Internal or external via G1/4 connection Domes should be loaded with air or inert gas.

Leakage:

Bubble tight (standard, typically 10-6 atm.cm3 /sec-1) Helium leak tested to 10-8 atm.cm3/sec-1 (on request) For -50°C Nitrile (special grade) option the leakage rate is: BS ISO 5208-2015 Rate A-A & EN 12266 Rate B. This option is available for K51 only.

Ambient/Media temperature:

• NBR: -10 … +100°C (+14 … 212°F)
• FPM: -20 … +150°C (-4 … 302°F)
• EPDM: -30 … +115°C (-22 … 239°F)
• Nitrile (special grade): -50 … +90°C (-58 … 194°F)
• Stainless Steel: -50 … +150°C (-58 … 302°F)

Materials:

• Body: stainless steel BS EN 10088 1.4401
• Dome: stainless steel BS EN 10088 1.4401
• Elastomers: NBR