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Datasheet Ball segment valve Type KVT/KVX Wafer design Type KVTF/KVXF Flanged design Nominal pressure PN 50 Nominal size DN 25/2 - 65 Material Stainless steel High nickel alloy (HiNi) and • Control-valve shut-off • High capacity • Ball segment and shaft made in one piece, gives a torque transmission free of backlash • Excellent tightness irrespective of differential pressure • KVM-ball segment with V-groove for high fibre concentrations • LN Noise) (Low Ball segment with low noise trim for high ∆P The SOMAS ball segment valve type KVT with a centrically mounted shaft, and KVX with an eccentrically mounted shaft are of wafer design. Type KVTF is a flanged version with centrically mounted shaft while KVXF is a flanged and eccentric design. The valves in this data sheet are of top entry design. Short face to face dimension, low weight and small space requirement make the installation of the these valves very easy. One-piece ball segment and shaft design gives backlash-free operation and accurate control. The shaft is guided in the valve body and stuffing box sleeve. The spring loaded seat is available in PTFE, PTFE 53 and HiCo. The valves can be used for control, as well as for shut-off applications on practi­ ally c every type of media within a wide temperature range. Choose KVT/KVTF for liquids, media containing impurities etc. For dry and clean media choose KVX/KVXF. In the KVX/KVXF valve the ball segment is eccentrically mounted and rotates out from the seat when the valve is opened. This reduces the wear on seat and segment. Low noise (LN) trim is available as an option. The designation “LN” indicates that the ball seg­ ent is equipped with a network of bars that are used to split up the pressure m drop across the valve. This results in less pressure recovery, thereby reducing the noise and potential damage due to cavitation. In addition the “LN” trim can tolerate media containing a small amount of fibers or particles. Ball segment with V-groove is available for use at high fibre concentrations. The V-groove design prevents de-watering at small opening angles. SOMAS valves are delivered ready for installation and operation. The valve assem­ lies b are delivered factory tested as complete units with actuators, positioners and accessories.

Tightness class Pressure and temperature rating The tightness class is related to the chosen material in the seat ring. According to the material in the seat. PTFE seat Code A PTFE 53 seat1 Code B HiCo seat Code T 1 EN 60534-4 VI (ASME B16-104 Class VI) EN 60534-4 VI (ASME B16-104 Class VI) EN 60534-4 IV alt. V (ASME B16-104 Class IV alt. V) 50% PTFE + 50% 1.4435 (316L) powder (percentage by weight) Flow characteristics 10 bar = 1 MPa Note 1: Check with SOMAS 1 NB! Do not exceed working pressure for the valve. FLP1 = One dimension bigger pipe size FLP2 = Two dimensions bigger pipe size FLP3...

For units with the positioner type SP405, add 2 kg For units with the positioner type SPE405, add 3 kg X = SC - Spring to close X = SO - Spring to open For units with the positioner type SP405, add 2 kg For units with the positioner type SPE405, add 3 kg

Flanged design Ball segment valve type KVTF/KVXF øH I K L M (HCD) 95 95 95 95 95 95 95 95 95 95 95 A1 = Face to face dimension according to EN 558 series 1 (PN 25, PN 40) A2 = Face to face dimension according to EN 558 series 4 (PN 20, PN 50, Class 150, Class 300)

For units with the positioner type SP405, add 2 kg For units with the positioner type SPE405, add 3 kg X = SC – Spring to close X = SO – Spring to open For units with the positioner type SP405, add 2 kg For units with the positioner type SPE405, add 3 kg

Flange standard Further technical information SOMAS ball segment valves type KVT and KVX with nominal size DN 25/2 – 65 are flangeless and should be clamped between flanges. Technical data for the materials used in the SOMAS valves, flange standard, steam data, etc. can be found in section 6 of the SOMAS catalogue. The valves type KVTF and KVXF with nominal size DN 25/2 – 50 are flanged and can be drilled according to PN 10 - 50 and Class 150/300. When ordering, please always state the pressure rating of the counter flanges. See the valve specification system on page 8, code 11. The valves...

Ordering State desired valve according to the valve specification system below as well as type of actuator, positioner and accessories. Valve specification system 4 Material – valve body Material – shaft Wafer design (centrically mounted segment) (eccentrically mounted segment) T = HiNi (High Nickel alloy) U = HiNi2 (High Nickel alloy) KVT LN (centr. mounted segment, Low Noise) 1 KVX LN (eccentr. mounted segment, Low Noise) 1 (ball segment with V-groove) 5 Material – ball segment Flanged design (centrically mounted segment) (eccentrically mounted segment) V = HiNi2 (High Nickel alloy) (ball...