3/4 Inch Brass Ball Valve Price | Full Port NPT Standard
Get competitive 3/4 inch brass ball valve price for full port, NPT threaded, 600 WOG rated. Lead-free forged brass, PTFE seats, ideal for water, oil, gas. Durable, leak-tight, stock available.
Description
Within residential, commercial and light‑industrial piping networks, the 3/4 inch brass ball valve ranks among the most widely deployed shut‑off and diversion components. Its compact footprint paired with high‑flow capacity makes it a preferred option for potable‑water supply, natural‑gas branch lines, HVAC circuits and equipment isolation duties. Built with a full port configuration, this valve eliminates flow‑path reduction to minimise pressure drop. NPT female threaded ends suit American‑standard piping layouts, streamlining on‑site assembly and subsequent servicing.
Material Grades & Manufacturing Standards
- Valve body / end caps: Forged brass CW617N per European specifications, dezincification‑resistant and stress‑corrosion‑proof, compliant with ASTM B124.
- Ball element: Hard‑chrome plated brass ball with polished surface hardness ≥800 HV, delivering low operating torque and extended service lifespan.
- Seats & sealing components: 25 % glass‑fibre reinforced PTFE. Operating temperature spans ‑20℃ to 120℃, achieving ISO 5208 Class A zero‑leak sealing performance.
- Valve stem: anti‑blowout stem construction fitted with dual O‑rings to guarantee safe manipulation under pressurised conditions.
Every unit undergoes individual shell hydrostatic testing at 1.5 times rated pressure plus low‑pressure air tightness testing at 1.1 times working pressure. Available certifications include EN 13828, NSF/ANSI 61 for potable‑water applications and CRN approval.
Technical Specifications
| Parameter | Specification |
|---|---|
| Nominal Size | DN20 (3/4 inch) |
| End Connection | Female NPT thread (BSPP available as an option) |
| Body Style | 2‑piece construction, full port |
| Nominal Pressure | PN25 (25 bar) |
| Maximum Working Pressure (Water / Oil) | 600 WOG (42 bar at ambient temperature) |
| Operating Temperature | ‑20℃ ~ +120℃; PEEK seat optional for steam service up to 180℃ |
| Compatible Media | Water, natural gas, oil products, non‑corrosive chemical solvents |
| Flow Coefficient (Cv) | Full‑port Cv ≈ 14.0 for dependable system throughput |
| Face‑to‑Face Dimension | ISO 5752 / GB/T 15188.3 |
Typical Applications
- Residential water‑supply branches: Main‑entry or floor‑level isolation valves for maintenance work and emergency flow cutoff.
- Domestic natural‑gas inlet piping: Satisfies Class‑A leakage‑rate requirements for gas valves. Brass substrate delivers reliable corrosion resistance for safe operation.
- HVAC chilled‑ / hot‑water coils: Full‑port bore prevents insufficient heat‑exchanger flow, maintaining stable pressure‑temperature performance.
- Industrial circulating cooling water: Isolates equipment inlet and outlet points; PTFE sealing sustains leak‑free long‑term operation.
- Compressed‑air installations: Branch‑line shut‑off for dry or lightly oil‑laden compressed‑air pipelines.
Why Choose Our 3/4‑Inch Brass Ball Valve
- Optimised flow performance: Full‑port geometry yields high Cv values and brings system pressure drop to a minimum.
- Comprehensive certification portfolio: NSF/ANSI 61 potable‑water certification; UL/FM gas‑safety approvals optional, supporting exports to North American and European markets.
- Ready‑to‑ship inventory: Standard NPT threaded variants ship within 48 hours. Custom handle colours or extended stems can be supplied upon request.
FAQ
Q1: What is the actual inner bore dimension for the full‑port 3/4‑inch brass ball valve? Is it suitable for natural‑gas service?
A: Our full‑port variant features an approximate 19 mm inner bore matching the nominal bore of 3/4‑inch NPT piping with no flow‑path constriction. Equipped with PTFE seats and validated via air‑tightness tests, this valve works safely for natural‑gas branch lines at pressures ≤25 bar. End‑users must observe local gas‑utility codes. Yellow‑coloured handles can be ordered for clear media identification.
Q2: Can this valve be utilised outdoors or within low‑temperature surroundings?
A: The standard model carries a minimum operating temperature rating of ‑20℃. For harsher cold‑climate conditions such as northern‑region winter environments, extended‑stem or freeze‑resistant designs alongside insulating jackets are recommended. Specially modified PTFE sealing compounds are offered for duties down to ‑40℃. Please consult our sales team for tailored product selection guidance.
