Description

STEVI Pro – The high-performance control valve for professional control especially in critical applications

The high-performance control valve, stainless steel variant now also with stainless steel bellows!

• Precise and high performance: optimised characteristic quality.​Variable: up to 6 (!) reducible Kvs values.
• Variable: stem seal options (PTFE V-ring unit, PTFE packing, graphite packing, stainless steel bellows seal, EPDM lining).
• Variable: changeable trim.
• Minimal noise: multi-stage trim (optional).
• Safe: blow-out proof stem.
• Safe: shaft guided plug.
• Safe: two-ply bellows seal (optional).
• Long life: precision stem guiding.
• Precise: even better control accuracy (optimised flow paths).
• Flexible: wide range of applications (very high differential pressures up to max. nominal pressure).
  

Plug design:    Parabolic plug, optional V-port or perforated plug (optional pressure balancing in both cases)
Nominal diameter:    DN 15-250 / NPS 1“-8“
Nominal pressure:    PN 16-40 / ANSI Class 150-300
Actuators:    Electric or pneumatic
Body materials:    e.g. EN-JS1049, 1.0619+N, SA216WCB, 1.4581
Flow media:    e.g. hot water, steam, gas, refrigerant, brine, etc.
Sizes    DN 80 - 1200
Nominal pressure    PN 10 – 40, Class 150, Class 300
Temperature    -60°C up to +427°C
Face-to-face    DIN EN 558-1 series 13, ISO 5752 series 13, API 609 cat. B short pattern
Body material    1.0619+N, 1.4408, SA216 Grade WCB, SA351 Grade CF8M