Safety valves
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Certified for vapours, gases and liquids Corrosion-resistant PTFE/PFA TFM-PTFE bellows sealed Special design for chlorine plants RICHTER Process Pumps & Valves #£sr

KSE Safety in corrosive and high purity applications Only one certification for vapours, gases and liquids. Your advantages: increased flexibility, no mix-ups of single components, reduced storage requirement Range of application • Protection of pressure vessels and plants against excessive pressure, set pressures of 0.1 to 13 bar (1.45-188 psig) • Operating temperature up to 180 °C (360 °F) • Corrosive media where metallic materials cannot attain an adequate service life or special metals cause high costs • Chlorine electrolysis • Pure and high-purity media • Metal-reactive media, e.g....

Version KSE-C for low pressures, e.g. in chlorine electrolysis Advantage: tight also at set pressures in the 250 mbar (0.36 psi) range and with working pressure differences in the < 50 mbar (0.07 psi) range The tapered sealing surfaces have a three times higher surface pressure than flat sealing surfaces. • Set pressure range 0.15-1.0 bar (2.18-14.5 psi) • Gas-tight • No lapping required • Optimal against solids sedimentation • Seat 0: DN 25/50 (1“/2“) = 22 mm, DN 50/80 (2“/3“) = 40 mm, DN 80/100 (3“/4“) = 50 mm, DN 100/150 (4“/6“) = 95 mm • DN 100/150 (4“/6“) with 40 % higher discharge...

Flanges to DIN EN 1092-2 shape B, PN 16, on request drilled to ANSI, BS etc. and groove to DIN 2512 • ASME-certified series KSEA with flanges to ASME (ANSI) B16.5 Cl. 150, optional with inlet flange Cl. 300, see separate publication Protection against corrosive atmosphere • Body with external epoxy coating • External nuts and bolts of stainless steel Identification AD 2000 data sheet A4, DIN EN 19 Back pressures pa0 in valve outlet for vapours/gases max. 30 %, for liquids max. 50 % of set pressure, but observe the following: • when set pressure < 4 bar (58 psi), pa0 max. = 1 bar (14.5...

Advantage: The KSE safety valves can be adapted to the discharge mass flow by means of a lift reduction (details on request) in the event of possible oversizing. Vapours and gases: With pressure conditions p^M) > 0.2 the discharge coefficients ad are to be taken from diagram (2) and applied. For safety valves which are to be adapted to the discharge mass flow by means of a lift reduction, the discharge coefficients ad can be taken from diagram (1); with pressure conditions pa0/p0 > 0.2 a deduction in accordance with diagram (2) is to be made. This deduction is derived from the...

Valve sizing, formula notation, specification Formulas for valve sizing (in acc. with AD 2000 data sheet A 2 and DIN 3320) • for vapours and gases Further information • VdTUV data sheet 871 • Richter data sheets with discharge coefficients ad as function of h/d0 and p0-pa0 Please state in inquiries/orders (other dimensions acceptable, too): • valve type, DN size, PN • mass flow to be discharged (kg/h) • set pressure (bar) • back pressure (bar) • operating pressure of the system to be protected (bar) • medium (gas, vapour, liquid) • temperature of medium (°C) Formelzeichen A) = n4d°2 = flow...