Product Overview

The concealed stem resilient seat gate valve is a durable on/off isolation solution designed for water distribution, wastewater treatment and general industrial applications. It utilizes a concealed stem and resilient seat design to ensure compact installation, reliable sealing and low maintenance. The valve is strictly designed for full open or full close service and is not intended for throttling or flow regulation.

Applicable working conditions

Water supply: mains isolation and shutdown.

Wastewater treatment: isolation of slurry and sewage lines.

Industrial processes: fluid isolation in chemical and petrochemical plants.

Irrigation systems: on/off control of agricultural water supply networks.

Main characteristics

Concealed rod design
Compact installation: no rise in stem saves vertical space.
Low-torque operation: ACME threaded stem ensures smooth actuation.
Corrosion resistance: The valve stem is completely enclosed in the valve body.

Resilient seat design
Airtight shutoff: EPDM/NBR seats provide ANSI Class VI seals.
Zero Leakage: The resilient seat adapts to the movement of the gate for a perfect seal.
Maintenance-free: No lubrication of the valve seat and gate is required.

Valve Structure
Valve body material: ductile iron (EN-GJS-500-7), cast iron (GG25), or stainless steel (CF8M).
Gate material: epoxy coated ductile iron or stainless steel.
Seals: EPDM, NBR or Viton (-20°C to 120°C).

Operating characteristics
Full bore design: no flow restriction when fully open.
Bi-directional sealing: effectively isolates both flow directions.
Fire protection option: metal-to-metal backup seal (optional).

Product Advantages

Instant shut-off: Handwheel rotates 90° for complete shut-off.

Space saving: suitable for underground or confined space installation.

Anti-corrosion: Door and valve bodies are epoxy coated (optional).

Low maintenance: no stem packing adjustment required.

Selection Guide

Potable water: EPDM seals + NSF 61 certification.

Grinding media: Stainless steel gate + hardened seat.

High cycle load: lubrication-free stem design (10,000+ cycles).