SELN Electronic Double Seat Control valve
Information
GENERAL
SELN electronic double seat control valve has adopted dual-oriented structure. Compact body structure, S-streamline liquid channel can supply big flow coefficient, wider adjustable range and more exact flow characteristic. It has aseismatic and wearable characteristic because of the fixed top and bottom of core’s guided part. The control valve matched actuator which can receive ON-OFF or 4-20mADC or 1~5V direct signal to take percentage act. It’s widely used for good dynamic stability, top reliability, high pressure, high pressure difference and liquid containing scum situation.
SPECIFICATIONS AND TECHNICAL DATA
BODY
Body style: Straight foundry ball valve
DN: 20~200mm
PN: PN16, 40, 63,100MPa
Joint style: Flange
Flange standard: Steel flange as per GB9113-2000, JB/T-94
Format of sealing surface: Convex face for PN16MPa, Convex &concave for PN 40, 63,100MPa
Distance between valve flange and flange surface as per GB12221-89
Material: Body, inner components matched material and work temperature range refer to the table 1 in the ZMA/BN
Structural style: Refer to table 1~5 in ZMA/BN
Press-cap: Press-plate format
Packing: V-pattern PTFE, soft graphite
Gasket: Pattern……tooth-pattern and flat
Material……..F4/reinforcedF4,stainless steel+ graphite
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