We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
Watts Pressure Regulator: FNPT x FNPT, 1/2 in Pipe Size, Brass, 1 psi to 25 psi - Standard Capacity Water Pressure Regulators
WattsStandard Capacity Water Pressure Regulators

Watts Pressure Regulator: FNPT x FNPT, 1/2 in Pipe Size, Brass, 1 psi to 25 psi

The WATTS Pressure Regulator is a standard capacity water pressure regulator with FNPT x FNPT connections. This 1/2-inch pipe size brass model (MPN 1/2 LF 263A-A 1-25 PSI) is low-lead compliant and operates within a…

SKU 3G-OTH-439368

Brand
Watts
Item
Pressure Regulator: FNPT x FNPT, 1/2 in Pipe Size, Brass, 1 psi to 25 psi
Category
Standard Capacity Water Pressure Regulators
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Watts
Manufacturer Part Number
1/2 LF 263A-A 1-25 PSI
Type
Brass, 1 psi to 25 psi
Pipe Size
1/2 in
Max. Op Temp
140°F
Low-Lead Compliance
Low-Lead Compliant
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Pressure Regulator is a standard capacity water pressure regulator with FNPT x FNPT connections. This 1/2-inch pipe size brass model (MPN 1/2 LF 263A-A 1-25 PSI) is low-lead compliant and operates within a 1 psi to 25 psi pressure range, with a maximum operating temperature of 140°F.

Used in

Common applications for Watts
Industrial burner gas safety systems — Watts HF2000 filters with GF-series seal kits maintain clean, regulated gas supply to burner pilot and main flame controls
Commercial heating and boiler installations — Modular filter assemblies support preventive maintenance and component replacement without full system shutdown
Process gas delivery pipelines — DN25 through DN125 filter bodies accommodate varying flow rates and inlet pressures across manufacturing and chemical processes
Gas pressure regulation benches — Multi-stage Watts filter platforms integrate with pressure reducers and safety shutoff valves in test and calibration environments
Equipment retrofit and upgrade projects — Available connection sizes and seal kits enable adaptation of newer Watts components into legacy gas control systems
Planned maintenance and spare-parts inventory — Filter seal kits allow facilities to stock consumables in advance, reducing downtime during scheduled gas system servicing

Watts Products

3G Electric supplies Watts standard capacity water pressure regulators. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
WATTS Pressure Regulator: FNPT x FNPT, 3/8 in Pipe Size, Brass, 1 psi to 25 psi, 140°F Max. Op Temp (MPN 3/8 LF 263A-A 1-25 PSI). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
Watts
WATTS Pressure Regulator: FNPT x FNPT, 3/8 in Pipe Size, Brass, 1 psi to 25 psi, 140°F Max. Op Temp (MPN 3/8 LF 263A-A 1-25 PSI). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
WATTS Pressure Regulator: FNPT x FNPT, 1/2 in Pipe Size, Brass, 1 psi to 25 psi, 140°F Max. Op Temp (MPN 1/2 LF 26AA). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
Watts
WATTS Pressure Regulator: FNPT x FNPT, 1/2 in Pipe Size, Brass, 1 psi to 25 psi, 140°F Max. Op Temp (MPN 1/2 LF 26AA). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
WATTS Pressure Regulator: FNPT x FNPT, 1/2 in Pipe Size, Brass, 3 psi to 50 psi, 140°F Max. Op Temp (MPN 1/2 LF 263AB). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
Watts
WATTS Pressure Regulator: FNPT x FNPT, 1/2 in Pipe Size, Brass, 3 psi to 50 psi, 140°F Max. Op Temp (MPN 1/2 LF 263AB). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
WATTS Pressure Regulator: FNPT x FNPT, 1/2 in Pipe Size, Brass, 3 psi to 50 psi, 140°F Max. Op Temp (MPN 1/2 LF 26AB). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
Watts
WATTS Pressure Regulator: FNPT x FNPT, 1/2 in Pipe Size, Brass, 3 psi to 50 psi, 140°F Max. Op Temp (MPN 1/2 LF 26AB). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
WATTS Pressure Regulator: FNPT x FNPT, 1/4 in Pipe Size, Brass, 3 psi to 50 psi, 140°F Max. Op Temp (MPN 1/4 LF 263A-B3-50PSI). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
Watts
WATTS Pressure Regulator: FNPT x FNPT, 1/4 in Pipe Size, Brass, 3 psi to 50 psi, 140°F Max. Op Temp (MPN 1/4 LF 263A-B3-50PSI). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
WATTS Pressure Regulator: FNPT x FNPT, 1/4 in Pipe Size, Brass, 1 psi to 25 psi, 140°F Max. Op Temp (MPN 1/4 LF 26AA). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
Watts
WATTS Pressure Regulator: FNPT x FNPT, 1/4 in Pipe Size, Brass, 1 psi to 25 psi, 140°F Max. Op Temp (MPN 1/4 LF 26AA). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.

More from Watts

View all Watts parts →
WATTS Water Pressure Reducing Valve: NPT x NPT, 1/2 in Pipe Size, Copper Silicon Alloy, NPT x NPT (MPN 1/2 LF 25 AUB Z3). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
Watts
WATTS Water Pressure Reducing Valve: NPT x NPT, 1/2 in Pipe Size, Copper Silicon Alloy, NPT x NPT (MPN 1/2 LF 25 AUB Z3). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
WATTS Pressure Reducing Valve: FNPT x FNPT, Copper Silicon Alloy, 10 psi to 35 psi, NPT x NPT (MPN 0009280). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
Watts
WATTS Pressure Reducing Valve: FNPT x FNPT, Copper Silicon Alloy, 10 psi to 35 psi, NPT x NPT (MPN 0009280). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
WATTS Water Pressure Reducing Valve: NPT x NPT, 1 in Pipe Size, Copper Silicon Alloy, NPT x NPT (MPN 1 LFU5B-Z3). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
Watts
WATTS Water Pressure Reducing Valve: NPT x NPT, 1 in Pipe Size, Copper Silicon Alloy, NPT x NPT (MPN 1 LFU5B-Z3). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
WATTS Water Pressure Regulator: FNPT x FNPT, 3/8 in Pipe Size, Brass, 50 psi to 175 psi, NPT x NPT (MPN 3/8 LF263A 50-175). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
Watts
WATTS Water Pressure Regulator: FNPT x FNPT, 3/8 in Pipe Size, Brass, 50 psi to 175 psi, NPT x NPT (MPN 3/8 LF263A 50-175). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
WATTS Water Pressure Reducing Valve: 3/4 in Pipe Size, Cast Copper Silicon Alloy, 25 psi to 75 psi (MPN LFN45BM1-DU-CPVC). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
Watts
WATTS Water Pressure Reducing Valve: 3/4 in Pipe Size, Cast Copper Silicon Alloy, 25 psi to 75 psi (MPN LFN45BM1-DU-CPVC). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
WATTS Water Pressure Reducing Valve: NPT x NPT, 3/4 in Pipe Size, Copper Silicon Alloy, NPT x NPT (MPN 3/4" LFN45BM1-DU-EZ). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
Watts
WATTS Water Pressure Reducing Valve: NPT x NPT, 3/4 in Pipe Size, Copper Silicon Alloy, NPT x NPT (MPN 3/4" LFN45BM1-DU-EZ). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
WATTS Pressure Regulator: FNPT x FNPT, 3/8 in Pipe Size, Stainless Steel, 3 psi to 50 psi, NPT x NPT (MPN 3/8 SS 263A 3 50). Key specifications — Brand: WATTS.
Watts
WATTS Pressure Regulator: FNPT x FNPT, 3/8 in Pipe Size, Stainless Steel, 3 psi to 50 psi, NPT x NPT (MPN 3/8 SS 263A 3 50). Key specifications — Brand: WATTS.
WATTS Pressure Regulator: FNPT x FNPT, 1/8 in Pipe Size, Brass, 0 psi to 25 psi, 140°F Max. Op Temp (MPN 1/8 LF560 0-25). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.
Watts
WATTS Pressure Regulator: FNPT x FNPT, 1/8 in Pipe Size, Brass, 0 psi to 25 psi, 140°F Max. Op Temp (MPN 1/8 LF560 0-25). Key specifications — Brand: WATTS; Low-Lead Compliance: Low-Lead Compliant.