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Small brass ball valve with tee handle, inline threaded connections

Value Brand

Value Brand G-MBB-38TH 3/8" FNPT x MNPT Brass Ball Valve Inline

SKU CH-G6H8-ZQ5A0

A brass ball valve for air, steam or water lines with a 600 psi pressure rating and full-port 3/8 inch connections

  • Full-port design maintains unrestricted flow
  • 600 psi rating handles high-pressure water systems
  • 150 psi steam rating suits heating applications
  • Brass body with chrome-plated ball resists corrosion
  • 29 in Hg vacuum rating enables suction-line use

3/8 Inch Brass Ball Valve

This 3/8 inch brass ball valve connects female and male NPT threads in a straight inline body. The two-piece construction uses a chrome-plated brass ball with a full-port opening for unrestricted flow. It handles air, steam, and water in general plumbing and light industrial systems.

Pressure And Media Limits

The valve is rated for 600 psi maximum operating pressure with water or air. Steam service is limited to 150 psi. Vacuum capability reaches 29 in Hg. Combustible gas duty is not rated and 3-A sanitary compliance is not assessed.

Replaces Standard Shut-Off Valves

This full-port ball valve replaces older gate or globe valves where faster shut-off and lower pressure drop are needed. The quarter-turn tee handle speeds operation compared to multi-turn stems. The jump is worth it when the system pressure stays within the 600 psi rating and the media is compatible.

How it compares

Measured against everything we stock in Faucet Valves & Replacement Parts, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 92% of the 1,132 comparable items (median $54.99).

Specifications

Product
Brand nameZORO SELECT
Product typeOther

Questions about this item

Which size should I choose for a 3/8" pipe thread?

This valve is built for a 3/8" nominal pipe size with female NPT on one side and male NPT on the other, so it matches standard 3/8" plumbing connections directly.

What does the 600 psi rating mean when the valve is installed?

The brass body and chrome-plated brass ball are rated for 600 psi maximum operating pressure with air or water, and 150 psi for saturated steam service.

How does the NPT thread standard affect sealing in practice?

The 3/8" FNPT x MNPT threads follow the National Pipe Taper standard, which creates a metal-to-metal seal when tightened with thread sealant or tape, and the valve holds vacuum down to 29 in Hg.

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