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White PVC straight needle valve with black handle and FNPT threads

HAYWARD POOL PRODUCTS INC

HAYWARD POOL PRODUCTS INC NVA1037T needle valve trap

SKU CH-81JJ-83EZ2 MPN NVA1037T

A straight needle valve in PVC with FKM seals, rated for 150 psi and 140 °F water flow

  • TypeDrain Components
  • MaterialHAWA
  • Straight needle valve enables precise flow control
  • PVC body with FKM seals resists corrosion and chemicals
  • Rated for 150 psi working pressure at 140°F
  • Glass-filled polypropylene handle provides durable manual operation
  • Meets ASTM D 1784 and ASTM D 4101 standards

Needle Valve for Precise Flow Control

The Hayward NVA1037T is a straight-pattern needle valve built for accurate flow metering in pool and spa plumbing. Its PVC body and FKM seals handle water treatment chemicals at temperatures up to 140 degrees F. The valve is rated for a maximum pressure of 150 psi and a flow capacity of 3 gpm.

Suited for Chemical Feed and Bypass Lines

This component fits systems requiring fine adjustment on 3/8 inch FNPT connections. Installers who need a larger pipe size, a different end connection type, or a higher flow rating should select an alternative valve. The fixed dimensions of 3 5/16 inch height and 2 1/2 inch length also limit use in tight enclosures.

3/8 Inch FNPT Connection Decides Fit

The female National Pipe Thread connection determines whether this valve integrates with existing piping. Verify the mating thread size and gender before purchase, as no adapters are included. Compliance with ASTM D 1784 and ASTM D 4101 confirms material quality for the intended service.

Highlights

  • Straight needle valve enables precise flow control
  • PVC body with FKM seals resists corrosion and chemicals
  • Rated for 150 psi working pressure at 140°F
  • Glass-filled polypropylene handle provides durable manual operation
  • Meets ASTM D 1784 and ASTM D 4101 standards

Specifications

TypeDrain Components
MaterialHAWA
BrandHayward
ModelNVA1037T

Questions about this item

What comes in the box and what extra fittings will I need?

The valve ships as a single unit with PVC body, FKM seals and glass-filled polypropylene handle. You must supply 3/8 inch FNPT pipe threads and any thread sealant or adapters required by your plumbing.

Which configuration should I select for a 3/8 inch FNPT line rated to 150 psi?

This model is a straight needle valve with 3/8 inch FNPT connections, PVC body, FKM seals and a 150 psi pressure rating — choose it when those exact specifications match your system.

What does the 3 gpm maximum flow mean when the valve is installed in a pool drain line?

It indicates the valve can pass up to 3 gallons per minute at its fully open position without exceeding the 150 psi pressure limit or 140 °F temperature rating.

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