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Ductile Iron Grooved 22.5° Elbow, UL Listed Fire Protection Grooved Pipe Elbow for Fire Sprinkler System

Ductile Iron Grooved 22.5° Elbow, UL Listed Fire Protection Grooved Pipe Elbow for Fire Sprinkler System

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Product Description

Rated diameter mm	Pipe outside measurerment mm	Rated Pressure MPa	L Measurement mm
80	88.9	2.5	57
100	108		73
100	114.3		73
125	133		73
125	139.7		73
150	159		79
150	165		79
150	168.3		79
200	219.1		98
250	273		121

Item	Parameter
Model	Grooved 22.5° Elbow
Body Material	Ductile Iron
Surface Treatment	Red Epoxy Powder Coating
Connection Type	Grooved End Both Sides
Angle	22.5 Degree
Working Pressure	2.5MPa
Applicable Pipe	Grooved steel pipe
Size Range	DN50‑DN250
Certification	UL Listed, CE
Application	Slight direction change for fire grooved pipelines

Main Features

Ductile iron casting body with red epoxy powder coating, anti‑corrosion for fire‑fighting piping
22.5‑degree angle design, used for slight direction change of grooved steel pipe
Both‑end grooved ends, connect with grooved coupling directly
UL & CE certified, comply with international fire‑safety standards
Smooth inner bore, low flow resistance for water delivery
Quick groove‑type installation, no welding or threading required

Product Advantages

Precision cast ductile iron body, high mechanical strength, withstand pipeline water pressure
Red epoxy powder coating, excellent anti‑rust performance for indoor fire‑protection environment
Smooth inner wall reduces water flow loss, improve pipeline conveying efficiency
Grooved ends for fast assembly, site hot‑work is avoided, improve construction safety
UL listed certification, meet acceptance requirements of overseas fire‑protection projects
Compact structure, cooperate with grooved couplings to realize slight pipeline turning

Application Scenarios

‑ Fire sprinkler grooved steel pipe straight connection
‑ Building fire‑fighting water supply grooved piping system
‑ Shopping mall, hotel, hospital fire pipe network assembly
‑ Factory, warehouse fire‑protection piping project
‑ Overseas fire‑safety engineering with UL certification requirement

Precision Valve Manufacturing

Professional Valve Manufacturer | Integrated Manufacturing

Raw Material Inspection

We select high-quality raw materials according to product specifications and international standards. All incoming materials are carefully inspected to ensure chemical composition, mechanical properties and traceability.

Forging & Casting

Advanced forging and casting processes are used to produce strong and reliable fire hydrant valve bodies and components. Strict process control ensures uniform structure, dimensional accuracy and excellent mechanical performance.

CNC Machining

Our CNC machining equipment provides precise and consistent processing of fire hydrant valve components. Critical dimensions, threads and sealing surfaces are strictly controlled to ensure accurate assembly and reliable sealing performance.

Surface Treatment

fire hydrant valve surfaces are professionally shot blasted to remove rust, scale and impurities. by epoxy powder coating, red fire‑retardant painting or hot‑dip galvanizing for long‑term anti‑corrosion performance.

Pressure Testing

Every fire hydrant valve undergoes strict pressure testing before shipment. Body and seat tests are performed according to applicable standards and customer specifications to verify pressure resistance and sealing reliability.

Quality Inspection

Our quality control team conducts comprehensive inspections throughout the production process. Finished valves are checked for dimensions, appearance, materials, pressure performance and overall quality before final approval and shipment.

Does main pipe need to be grooved for mechanical tee?

It outputs electric signal to fire‑control cabinet to monitor whether valve is fully open or closed.

What is the function of mechanical tee?

Create branch connection from main fire grooved pipe for sprinkler or branch pipelines.

What working pressure can this fitting bear?

Rated working pressure up to 1.6MPa for fire‑fighting service.