knife gate valve / with handwheel / pneumatically-operated / hydraulically-operated
Delta Industrial™ 30 series WEIR Oil & Gas



  • Type:

    knife gate

  • Operation:

    with handwheel, pneumatically-operated, hydraulically-operated

  • Function:


  • Media:

    for slurry

  • Body:

    flange, stainless steel

  • Applications:

    for the chemical industry, for industrial applications, for sand, cement

  • Other characteristics:


  • Pressure:

    Min.: 0 psi

    Max.: 740 psi

  • DN:

    Min.: 50 mm

    Max.: 900 mm


The Delta Industrial™ series 30S and 30L valves are a fully rated ASME Class 300 (PN50) guided shear gate designed for severe duty applications.
The Delta Industrial™ series 30S and 30 is identical to series 150 but conforms with the higher working pressures of ASME Class 300 (PN50) to 740-psig (5,100 kPag). Delta Series 30S or 30L is available from 2” (50mm) through 54” (1350mm).
Key features/benefits

Full flanged body design
Non-rising stem
Stainless steel stem with rolled acme threads
Lexan bonnet covers
Bevelled-edged gate tip
Dual resilient and metal seats
Bi-directional zero leakage seat
Sealing independent of pipeline pressure or direction
Optimal features per application
In-service repackable seal
No cavity on bottom port
All styles of actuators available
Optional ni-hard wear ring
Optional carbide body lining