Male Threaded Concentric Grooved Reducer

Material: Ductile iron ASTM A536, 65-45-12 Thread Type: Male thread, NPT or BSPT Pressure Rating: 300–500 psi Surface Protection: Red painted or hot dip galvanized End-to-End Length: 64mm or 76.1mm, depending on size Connection Use: For reducing pipe size while converting from grooved to male threaded connection

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This Male Threaded Concentric Grooved Reducer is used to join different pipe sizes on the same axis through a grooved-to-male-threaded connection. With ductile iron construction and NPT or BSPT thread options, it provides a compact transition fitting for fire sprinkler, hydrant, and general water supply pipework.

Key Features

Concentric reducer design for same-axis pipe transition
Connects different pipe diameters in one fitting
Groove-to-male thread connection conversion
Male thread options available in NPT or BSPT
Ductile iron body for reliable strength and pressure performance
Suitable for fire protection and water supply piping systems
Compact end-to-end design for convenient installation
Red painted or hot dip galvanized surface finish available

Product Configurations

Item	Details
Reducer Structure	Cone-shaped concentric reducer
Connection Design	Grooved end x male threaded outlet
Pipe Alignment	Same-axis pipe transition
Thread Options	Male thread, NPT / BSPT
Size Range	2″ x 1″ to 4″ x 2″
DN Range	DN50 x DN25 to DN100 x DN50
Pipe Diameter Range	60.3 x 33.7mm to 114.3 x 60.3mm
Application	Fire protection and grooved water piping connection conversion

FAQ
Q1: Who are we?
A: We are a fire fighting equipment manufacturer based in Fujian, China. Since 2004, we have supplied a wide range of fire safety products for domestic and international markets, including fire sprinklers, hydrants, valves, hoses and extinguishers.
Q2: How do we ensure product quality?
A: We follow strict quality control procedures from raw material inspection to production and final shipment. Pre-production samples and final inspections can be arranged according to order requirements.
Q3: What products do we supply?
A: We supply fire sprinklers, fire extinguishers, fire hydrants, fire valves, fire hoses, hose reels, fire cabinets, foam equipment and other fire fighting accessories.
Q4: Why choose Sunroom?
A: Sunroom has over 21 years of experience in fire fighting equipment manufacturing. We offer a wide product range, support customized production, and provide certificates or technical documents according to product and project requirements.

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