Steel Ball Valve

Flowserve Naval steel ball valves are suitable for district heating (CHP) installations, heat transfer piping, oil lines and oxygen-free water lines.

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  • Brands:
    NAVAL

Flowserve Naval steel ball valves are suitable for district heating (CHP) installations, heat transfer piping, oil lines and oxygen-free water lines.

CONSTRUCTION The valve has an all-welded body and is fitted with carbon-reinforced teflon seals which are longlasting against frequent operation, impurities and chemicals. A ground and polished stainless steel ball gives easy turning and reliable operation over many years. A floating ball construction is used. Bevel spring washers keep the seals pressed against the ball to ensure that the valve remains leak- tight regardless of pressure fluctuations. The blow-out proof stem is sealed with 2 O-rings. In smaller valves, the upper one can be changed and in sizes DN65 to DN400 both can be changed. The teflon thrust washer between the stem shoulder and stem housing also acts as a seal. Stem housings of DN65 valves and above are fitted with stainless steel bearings.

CHARACTERISTICS The valve needs no servicing - no adjustment or lubrication and is easy to install, giving a long working life with low running costs. It is easy to insulate because of the long, circular stem housing. The operating lever is detachable and can be re-positioned at 180°. Heavy and unreliable cast components are not used in the construction of the valve body. It is easy to retrofit actuating equipment.

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NAVAL Steel Ball Valves KV-Values Technical Brochure

NAVAL Steel Ball Valves KV-Values technical brochure

NAVAL Steel Ball Valves Brochure

NAVAL Steel Ball Valves brochure

NAVAL Steel Ball Valve Actuating Torque Table

NAVAL Steel Ball Valve Actuating Torque table

NAVAL Steel Ball Valve User Instructions (IOM)

NAVAL Steel Ball Valve User Instructions: Installation, Operation and Maintenance Manual (IOM)

NAVAL Steel Ball Valve Pressure Loss Diagram

NAVAL Steel Ball Valve pressure loss diagram

NAVAL Steel Ball Valves Pressure/ Temperature Curves

NAVAL Steel Ball Valve Pressure/ Temperature curves: Pressure resistance as a function of temperature

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