Pressure pneumatic pressure booster 712

Product overview
Supplementary loading system designed to allow protected systems and safety valves to operate closer to the permissible operating pressure (PB), enabling continuous operation up to 97% of the set pressure. The system reduces media loss, shortens valve opening and closing times, lowers noise emissions and prevents simmering prior to safety valve actuation.

Key benefits

• Enables higher process productivity by permitting operation up to 97% of set pressure (PB)
• Reduced media release during safety valve actuation due to shorter opening and closing times
• Lower noise emissions as a result of quicker valve cycling
• Complete tightness up to set pressure; safety valve remains leak-tight at pressure peaks below set pressure
• Decreased wear of the safety valve by eliminating simmering before response

Applications & Industries

• Chemicals and petrochemicals
• Energy and power plants
• Pulp and paper
• Urea and fertilizer production

The optimal solution for

• Operation at up to 97% of set pressure
• Ensuring complete tightness up to set pressure
• Systems with back pressures also >50%

Technical data (table)
Set pressure (according to CE): 0.1 - 250 barg | 1.5 - 3.626 psig
Set pressure (according to ASME): 0.1 - 250 barg | 1.5 - 3.626 psig
Temperature (according to CE): -40 - 550 °C | -40 - 1,022 °F
Temperature (according to ASME): -40 - 538 °C | -40 - 1,000 °F
Capacity: orifice D - T
Connections DIN EN 1092: DN 25 - DN 400
Connections ASME B16.5: NPS 1 to NPS 16
Flange class Inlet DIN EN 1092: PN 10 - PN 400
Flange class Inlet ASME B16.5: Class 150 - Class 2500
Body material: 0.6025, 0.7043, 1.0619, 1.4408, 1.7357 | Gr. 60-40-18, SA 216 WCB, SA 351 CF8M, SA 217 WC6, SA 352 LCB, SA 351 CF3M, SA 995 Gr 4A CD3MN (Duplex), SA 494 M35-1 (Monel), SA 494 CX2MW (Hastelloy)
Narrowest flow diameter d₀: 14 - 295 mm | 0.55 - 11.61 in
Narrowest flow area A₀: 154 - 68,347 mm² | 0.239 - 105.938 in²
Bellows material: Stainless steel, INCONEL® 625LCF
Seat gasket: Soft sealing, Metallic, Sealing plate

Technical specifications

• Set pressure (CE): 0.1 - 250 barg | 1.5 - 3.626 psig
• Set pressure (ASME): 0.1 - 250 barg | 1.5 - 3.626 psig
• Temperature (CE): -40 - 550 °C | -40 - 1,022 °F
• Temperature (ASME): -40 - 538 °C | -40 - 1,000 °F
• Capacity: orifice D - T
• Connections (DIN EN 1092): DN 25 - DN 400
• Connections (ASME B16.5): NPS 1 to NPS 16
• Flange class Inlet (DIN EN 1092): PN 10 - PN 400
• Flange class Inlet (ASME B16.5): Class 150 - Class 2500
• Body material: multiple options including 0.6025, 0.7043, 1.0619, 1.4408, 1.7357 and AS/SA grades (e.g. SA 216 WCB, SA 351 CF8M, SA 217 WC6, SA 352 LCB, SA 351 CF3M, SA 995 Gr 4A CD3MN (Duplex), SA 494 M35-1 (Monel), SA 494 CX2MW (Hastelloy))
• Narrowest flow diameter d₀: 14 - 295 mm | 0.55 - 11.61 in
• Narrowest flow area A₀: 154 - 68,347 mm² | 0.239 - 105.938 in²
• Bellows material: Stainless steel, INCONEL® 625LCF
• Seat gasket: Soft sealing, Metallic, Sealing plate