Fire Sprinkler Pipe
Choose sprinkler pipe by end connection, wall schedule and black, red-coated or galvanized finish for the installation.
Browse Fire Protection Piping
ASTM A795 Fire Sprinkler Pipe
For orders already specified to ASTM A795: compare the material type, wall schedule, testing and required listing documentation.
Fire Protection Valves
Select OS&Y gate or butterfly valves around the connection, operating clearance and supervisory arrangement.
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Pipe and Connections for Fire-Water Runs
Choose the pipe and joint together
Separate mains and branches by NPS, schedule and end preparation. Grooved runs use the matched coupling assembly; threaded branches use the specified pipe wall and thread form.
- State NPS and wall schedule
- Identify plain, roll-grooved or threaded ends
- Separate branch lines from main runs
Match the complete grooved assembly
Pipe OD, groove profile, wall condition and coupling model determine a grooved connection’s fit. The gasket also follows the specified service. Nominal size alone cannot identify the assembly; the grooved fittings page covers its coupling, elbow and tee choices.
- Check actual OD and groove dimensions
- Distinguish rigid and flexible couplings
- Select the gasket for the specified service
Set the valve arrangement
An OS&Y gate valve needs stem travel clearance; a butterfly valve needs space for its operator and disc. Monitored isolation points also require the specified supervisory arrangement. Those details distinguish models with the same nominal connection size.
- State gate or butterfly valve type
- Provide the mating connection standard
- Identify supervision and operator requirements
Coordinate finish and delivery groups
Black, red-coated and galvanized finishes can share an order as separately marked lines. Group bundles by building or installation zone for receiving.
- Define black, red-coated or galvanized finish
- List lengths and end preparation by size
- Assign bundle marks to site delivery groups
| Nominal pipe size | Outside diameter | Schedule 10 wall | Schedule 40 wall |
|---|---|---|---|
| NPS 1 | 1.315 in. / 33.4 mm | 0.109 in. / 2.77 mm | 0.133 in. / 3.38 mm |
| NPS 2 | 2.375 in. / 60.3 mm | 0.109 in. / 2.77 mm | 0.154 in. / 3.91 mm |
| NPS 3 | 3.500 in. / 88.9 mm | 0.120 in. / 3.05 mm | 0.216 in. / 5.49 mm |
| NPS 4 | 4.500 in. / 114.3 mm | 0.120 in. / 3.05 mm | 0.237 in. / 6.02 mm |
Scroll sideways to see all table columns.
Pipe Standards and Fire-System Approval
ASTM A795 / A795MFire protection steel pipeASTM A795 covers black and hot-dip galvanized welded and seamless steel pipe for fire protection. The required type and wall class identify the product, and its joining provisions distinguish lightweight from standard-weight pipe.
NFPA 13Sprinkler system installationThe project’s adopted NFPA 13 edition governs its sprinkler installation requirements. The designer’s pipe and component choices become the purchasing specification; a material designation by itself does not establish system acceptance.
Product listing recordsExact component identificationA required product listing must identify the actual manufacturer, model, size and service in the submittal. A catalog symbol cannot establish approval for every configuration.
Connection specificationsGrooves, threads and flangesA groove profile, thread designation or flange drilling defines the mating connection. Two parts with the same nominal size can still have incompatible geometry.
From pipe specification to site-ready order
Order and material review
Our quotation separates pipe designation, wall schedule, lengths and components by order line. Different end or finish instructions remain attached to the item they affect, rather than passing as one blanket production note.
Cutting and end preparation
Cut lengths and ends follow the accepted order. Plain, roll-grooved and specified threaded items remain separate in the bundle plan, with the required preparation identified for each installation group.
Surface preparation and finish
The finish applies to the designated pipe lines. Coating records identify the selected system, color and end treatment; galvanized items retain a separate identity on the order and packing list.
Dimensional and connection checks
Dimensional checks follow the specified pipe and prepared end. A grooved order also identifies the applicable groove dimensions, coupling model and gasket, so the connection parts can be checked against the same schedule.
Marking and protective packing
Bundle and package marks connect sizes, order lines and delivery groups to the packing list. End and surface protection preserve the prepared items, while valve and fitting counts remain separately identifiable.
Material, Inspection and Approval Records
Four checks before shipment
Pipe identityMatch the material designation, size, wall and length to the approved order lines.
Prepared endsCheck ordered groove, thread or plain-end dimensions against the specified connection requirements.
Component matchMatch the valve, coupling and gasket identification to the approved component schedule.
Finish and packingCheck finish instructions, protective packing and bundle marks against the delivery grouping.
Documents to specify in the purchase order
- Approved pipe and component schedule, with end and finish requirements
- Material test records for the pipe lines requiring them
- Dimensional inspection records for pipe and prepared ends
- Applicable product listing records for the exact models specified
- Valve and coupling data sheets, including required supervision details
- Packing list with bundle marks, quantities and shipment identification
Check the details behind each order line
Sprinkler pipe size comparison
Review the full displayed NPS and wall table before splitting the order by schedule.
Groove and coupling fit
Check the connection dimensions that must agree across the pipe, coupling and fitting.
Valve supervision requirements
Define the monitored valve arrangement and the information needed for its selection.
Fire piping procurement questions
What information is needed to price replacement components?
Provide the existing component’s manufacturer and model when available, plus clear markings, measured connection dimensions and photographs or drawings. For a valve, include face-to-face space and operator clearance. These details help identify a compatible option before a replacement is quoted.
How should I handle a proposed equivalent in a tender?
Keep the specified item and the proposed equivalent on separate lines. Include the relevant dimensions, material designation, rating and required listing record for review by the project team. Release the alternative for supply only after the project’s acceptance process is complete.
Request a fire protection piping quote
Send the pipe or component list, quantities, sizes, wall schedules, ends, finishes, required documents and destination. A typed list is enough to begin; drawings and valve or coupling requirements help define the complete order.
- Line-by-line product and connection scope
- Order-specific processing and document requirements
- Packing, delivery terms and production schedule