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Gate Valves

Resilient Seated Gate Valve

Full-bore isolation valve with rubber-encapsulated wedge for clean water distribution.

Resilient Seated Gate Valve

Engineered around the medium, pressure, temperature and operating duty.

Product overview

Full-bore isolation valve with a rubber-encapsulated wedge, developed for low head loss and reliable shut-off in water distribution and utility pipelines.

Greysen reviews the complete operating case before confirming the valve. Body style, wetted materials, sealing system, connection standard and operator are matched as one project configuration.

Typical technical specification

Nominal sizeDN40–DN1200 (1½–48 in)
Pressure ratingPN10 / PN16 / PN25; Class 125 / 150 options
Body materialsDuctile iron with fusion-bonded epoxy coating
Disc / trimEPDM- or NBR-encapsulated wedge; stainless steel stem
Seat / sealingResilient wedge-to-body sealing
End connectionFlanged, grooved or mechanical-joint options
Design & testingEN 1074-2 / EN 1171; AWWA C509 / C515 options; EN 12266-1 testing
Typical mediaPotable water, wastewater and neutral liquids

DESIGN DETAILS

Features and benefits

01

Valve construction

Unobstructed bore minimizes pressure loss and sediment accumulation.

02

Sealing performance

Encapsulated wedge compensates for minor wear and surface irregularities.

03

Reliable operation

Non-rising stem design suits chambers and buried service.

04

Project flexibility

Replaceable stem seals simplify planned maintenance.

CONFIGURATION OPTIONS

Materials and sealing selection

Material combinations are reviewed against corrosion, erosion, temperature and required service life. The final approved data sheet defines every pressure-containing and wetted component.

Body

Ductile iron with fusion-bonded epoxy coating

Trim

EPDM- or NBR-encapsulated wedge; stainless steel stem

Seat & seals

Resilient wedge-to-body sealing

Connection

Flanged, grooved or mechanical-joint options

VALVE + OPERATOR

Operation and automation

Manual and automated packages are selected using the valve operating load, maximum differential pressure, required speed and available site utilities.

Manual operation

Lever, handwheel or gearbox options are matched to size, torque and access.

Pneumatic actuation

Double-acting or spring-return packages can include solenoid, switch box and positioner.

Electric actuation

On/off or modulating actuators are configured for voltage, duty, enclosure and control signal.

Package verification

Torque or thrust, safety factor, mounting interface, travel time and fail position are checked together.

APPLICATION REVIEW

Information for correct selection

  1. Nominal size, pressure class and mating connection standard.
  2. Medium, concentration, solids and minimum/maximum temperature.
  3. Normal and maximum differential pressure, flow rate and cycle frequency.
  4. Manual or actuated operation, fail position, control signal and required travel time.

Typical applications

  • Drinking-water networks
  • Wastewater systems
  • Fire-water mains
  • Irrigation pipelines

Engineering checks

  • Pressure-temperature suitability
  • Material and media compatibility
  • Flow velocity and operating load
  • Installation orientation and maintenance access

PROJECT SUPPORT

Technical documentation

Request the documents required for consultant review, procurement and site handover. Availability is confirmed for the selected product and order.

  • Product data sheet
  • General arrangement drawing
  • Installation and maintenance guidance
  • Test and material documents when specified
Configuration note: Published ranges describe common industry configurations. Final dimensions, pressure-temperature limits, materials, certifications and standards are confirmed against the enquiry and approved data sheet.

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