Rising Stem - Ductile Iron

Excellent Ductile Iron Valve Solution for HVAC Flow Control

When fluid isolation and shut-off in heating, ventilation, and air conditioning (HVAC) systems are required, the rising stem ductile iron gate valve delivers dependable performance with clear visual position feedback. Its rising stem design allows the stem to lift as the valve opens, making it easy to see at a glance whether the valve is open or closed, while its ductile iron body offers improved strength and impact resistance compared to traditional materials.

At Dutco Tennant LLC, we supply high-quality HVAC rising stem ductile iron gate valves across the GCC, ensuring project teams and installers have access to reliable isolation valves for commercial, industrial, and mechanical systems. With regional inventory and timely delivery coordination, the company supports consistent availability of engineered flow control solutions where ductile iron body valves are specified.

The valve is suitable for straight-line flow control with minimal restriction when fully open, making it ideal for HVAC water circuits, chilled water distribution, heating systems, and general mechanical services requiring visual valve position indication and secure shut-off.

Competitive Advantages Of Our Ductile Iron HVAC Rising Stem

• Body Material – Ductile iron construction provides high tensile strength and impact resistance compared to grey iron
• Rising Stem Design – Exposed stem movement enables visual confirmation of open or closed position during operation
• Flanged Connection – Standard PN16 flanged ends compatible with typical HVAC piping systems
• Handwheel Operation – Manual handwheel for positive valve actuation
• Bonnet Sealing – Ductile iron bonnet with corrosion-resistant seals
• Disc & Seat Trim – Stainless steel or bronze seat rings for reliable sealing performance
• Internal Coating – Epoxy or suitable protective coating to guard against corrosion in HVAC environments
• Stem Packing – Graphite or suitable packing ensures minimal leakage around the stem

Technical Configuration & Performance Specifications

• Pressure Class – Typically PN16 compatible with HVAC system design pressures
• Temperature Range – Suitable for water, chilled water, and HVAC fluid temperatures within common operating limits
• Size Range – Available in a range of nominal diameters for system flexibility
• Connection Standard – Flanges drilled to standard tables for compatibility with HVAC pipework
• Actuation Method – Handwheel driven rising stem for manual control
• Visual Position Feedback – Exposed rising stem shows valve status at a glance
• Seal Integrity – Valves designed to minimize internal leakage under full shut-off
• Serviceability – Accessible packing gland and trim for maintenance purposes