Needle Valves

WIKA Needle Valves – Precision Control for Pressure Measuring Instruments

Available Sizes:

• 1/4″, 3/8″, 1/2″

Connection Type:

• BSP/NPT Female

Material Options:

• Stainless Steel: S.S. 304 / 316 / 316L

WIKA Needle Valves are designed to isolate and vent pressure measuring instruments such as gauges, switches, and transmitters. These valves are essential for the safe removal, recalibration, or replacement of instruments in various process industries. They handle gaseous and liquid aggressive media, making them suitable for use in harsh environments like oil & gas, petrochemical, chemical, power generation, and water treatment industries.

Key Features:

• Low-Wear Design: The needle valve is equipped with a non-rotating spindle tip within the bonnet, minimizing wear on sealing elements and extending the valve’s service life.

• Smooth Operation: Despite high-pressure conditions, the valve handle operates with low torque, ensuring ease of use and reliable performance.

• Enhanced Safety: The valve’s blow-out proof bonnet design offers increased safety, especially in high-pressure applications, preventing blow-outs and ensuring operator safety.

• Leak Tightness: These needle valves are rigorously tested for leak tightness in accordance with BS6755 and ISO 5208 standards, achieving leak rate A for maximum reliability.

• Customer-Specific Combinations (Hook-Up): WIKA offers assembly of needle valves with pressure measuring instruments, such as gauges or transmitters, creating ready-to-install solutions that undergo additional leak testing to ensure system performance. Custom hook-up solutions can be tailored to specific applications, offering seamless integration.

Applications:

• Process Industries: Oil & Gas, Petrochemical, Chemical, Power Generation, and Water/Wastewater Treatment plants.
• Media: Suitable for gaseous and liquid aggressive media that are non-viscous and non-crystallizing.

Special Features:

• Safe Instrument Venting: The vent connection option enables instruments to be safely vented to the atmosphere, ensuring maintenance can be conducted without risking overpressure situations.

• Multiport Options: The standard multiport version offers two additional connections for venting or attaching further instruments, enhancing flexibility in process monitoring and control.

With their robust construction and high precision, WIKA needle valves are an excellent choice for maintaining the integrity of pressure measurement systems in aggressive and demanding environments.