Productoverzicht

DeNodulair gietijzer gegroefde flexibele buisfittingen are high-quality, UL/FM certified pipe connections designed for fire protection systems, water supply networks, en industriële leidingtoepassingen. Manufactured from ASTM A536 Grade 65-45-12 nodulair gietijzer (QT450-10), these fittings provide exceptional strength, duurzaamheid, and corrosion resistance in demanding environments. The grooved connection design enables fast, reliable installation without welding or threading — simply align the pipe ends and secure with grooved couplings. Available in a comprehensive range of types including elbows, T-stukken, koppelingen, caps, flenzen, en adapters, these fittings accommodate sizes from 1″ to 12″ with a maximum working pressure of 363 PSI (25 bar). The flexible design compensates for pipe expansion, contraction, and minor misalignment, reducing stress on the piping system. With multiple surface finish options — including red epoxy, blue epoxy, hot-dip galvanized, and black paint — these fittings are suitable for both indoor and outdoor fire protection installations. They are the trusted choice for fire sprinkler systems, standpipes, fire hydrant networks, and industrial pipelines.

Nodulair gietijzer gegroefde flexibele buisfittingen

Technische specificaties

Belangrijkste kenmerken

1. Premium Ductile Iron Construction – ASTM A536 Grade 65-45-12
2. Grooved Connection – Fast, Reliable Installation
3. Flexible Design – Compensates for Expansion & Misalignment
4. Multiple Surface Finish Options – Corrosion Protection
5. UL/FM Compliant – Fire Protection Certified
6. Wide Product Range – Full System Compatibility
7. Salt-Resistant – Suitable for Marine Environments

Nodulair gietijzer gegroefde flexibele buisfittingen

Product Types

Toepassingen

1. Automatic Fire Sprinkler Systems
2. Fire Hydrant & Standpipe Systems
3. Industrial Fire Protection
4. Watervoorziening & Distribution
5. HVAC & Industriële leidingen

Nodulair gietijzer gegroefde flexibele buisfittingen

Verpakking en verzending

De verpakking is afhankelijk van het producttype en de hoeveelheid. Options include carton boxes or wooden crates with proper protection for grooved ends and threads. Verzending kan over zee worden geregeld, spoorweg, lucht, of vanaf het verzoek van de klant.

Bedrijfsprofiel

Luoyang Datang Energie Tech Co., Ltd. is a professional industrial pipe fitting and valve supplier, dedicated to providing reliable piping solutions for fire protection, HVAC, waterbehandeling, en industriële leidingsystemen wereldwijd. All products are manufactured to international standards with CE and ISO 9001 certificeringen. Met voorbij 10 jarenlange ervaring, een moderne faciliteit van 80,000 m², En 200+ professionele medewerkers, wij bedienen klanten in 10+ landen met kwaliteitsproducten, concurrerende prijzen, en betrouwbare levering.

Betalingsvoorwaarden

T/T, L/C op zicht, Western Unie, PayPal, Apple Pay, Google Pay, Creditcard, enz.

Nodulair gietijzer gegroefde flexibele buisfittingen

Veelgestelde vragen

Q1: What is the difference between grooved connections and welded connections?

A: Grooved connections utilize mechanical couplings and require no welding, draadsnijden, or hot work; they install 3–5 times faster and are suitable for space-constrained areas or locations where hot work is prohibited. Welded connections provide permanent joints but require professional welders and hot work permits. Grooved connections also allow for a degree of pipe deflection and axial movement, accommodating thermal expansion and building settlement.

Vraag 2: What is the difference between flexible couplings and rigid couplings?

A: Flexible couplings allow for angular deflection (up to 4°) and axial movement (±3 mm), making them suitable for areas subject to thermal expansion, building settlement, or seismic activity. Rigid couplings provide a fixed, stiff connection that prevents pipe movement, making them suitable for straight pipe runs requiring precise alignment.

Q3: What is the difference between ductile iron and gray cast iron?

A: Ductile iron (QT450-10) features a spheroidal graphite structure; zijn treksterkte (350 MPa) and yield strength (310 MPa) are far superior to those of gray cast iron, offering better toughness and impact resistance. Gray cast iron has lower strength and is more brittle. Ductile iron is the preferred material for fire protection and high-pressure piping systems.

Q4: What is the difference between epoxy coating and hot-dip galvanizing?

A: Epoxy coating offers excellent chemical corrosion resistance; the red or blue color facilitates easy identification of fire protection piping, making it suitable for indoor fire systems. Hot-dip galvanizing (70 μm) provides superior corrosion resistance, making it suitable for outdoor, coastal, and humid environments. The choice depends on the installation environment and corrosion resistance requirements.

Vraag 5: What tools are required to install grooved fittings?

A: Installing grooved fittings requires grooved couplings, a torque wrench, lubricant, and pipe cutting tools. No welding equipment, threading machines, or hot work tools are needed. Installers can perform the work after minimal training, significantly lowering the barrier to entry for installation.

Nodulair gietijzer gegroefde flexibele buisfittingen