1/2″ x 3/8″ Brass 1/4 Turn Angle Ball Stop

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BrassCraft KTCS40BXC – 1/2″ Nominal Compression x 3/8″ OD Compression 1/4-Turn Angle Ball Stop Valve

The BrassCraft KTCS40BXC is a quarter-turn angle ball stop valve designed for shutoff control in residential water supply lines. Featuring a compact 90-degree configuration, this valve connects a 1/2″ nominal compression inlet to a 3/8″ OD compression outlet, making it well-suited for fixture installations such as faucets, toilets, and appliances.

Constructed with a one-piece forged brass body and a precision-machined brass ball, the KTCS40BXC is engineered for reliable operation and resistance to wear. The blowout-proof stem assembly and dual O-ring seals enhance durability under repeated use and thermal cycling. Its corrosion-resistant plating ensures longevity in potable water systems.

Key Product Features

  • Valve Type: 1/4-turn angle ball stop for positive shutoff
  • Inlet Connection: 1/2″ nominal compression
  • Outlet Connection: 3/8″ OD compression
  • Body Construction: Forged brass, one-piece design
  • Ball: Chrome-plated brass, machined for smooth operation
  • Stem: Blowout-proof, internally assembled with two high-performance O-rings
  • Handle: Removable for protection during installation
  • Performance: 100% leak-tested at 125 PSI

Technical Data

  • Pressure Rating: Up to 125 PSI
  • Temperature Range: 40°F to 180°F
  • Media: Potable water
  • Application: Residential fixture shutoff

Installation Information

This valve is designed for compression connections and requires no soldering. Ensure all fittings are properly aligned and torqued according to manufacturer recommendations. Use standard plumbing tools for installation. Compliant with applicable plumbing codes when installed correctly. Always confirm material compatibility and local code approval prior to use.

Contractor Notes

The KTCS40BXC is well-suited for retrofit and new construction work, offering quick shutoff with minimal handle rotation. Its robust internal components withstand scaling, stagnation, and frequent operation, making it a dependable choice for service valves in residential water systems.

Fast, Reliable Delivery for Every Order

At Primes Distribution, we understand that timely delivery is just as important as product quality. That’s why we partner with trusted carriers to make sure your plumbing, HVAC, and heating supplies arrive safely and on time.


Shipping Methods

We offer multiple shipping options to fit your needs:

  • Standard Shipping: 3–7 business days across the continental U.S.

  • Expedited Shipping: 1–3 business days for urgent orders.

  • Local Pickup: Available at our warehouse by appointment.

Order Processing

All in-stock orders are processed within 1–2 business days. You’ll receive a confirmation email once your order is placed and a tracking number as soon as it ships.

Orders placed after 3 PM or on weekends will be processed the next business day.


Shipping Costs

Shipping costs are calculated at checkout based on weight, dimensions, and delivery location. Large or heavy items (like water heaters or HVAC units) may require special freight handling.


Delivery Areas

We currently deliver throughout the United States. For bulk or international shipments, please contact our support team for a custom quote.


Damaged or Missing Items

If your shipment arrives damaged or incomplete, report it within 48 hours of delivery. Our support team will quickly arrange a replacement or refund.


Need Help?

If you have questions about your order or need help tracking a shipment, reach out to our customer support team at:
📧 sales@primesdistribution.com
📞 786-937-7081