Koncentrični reduktor s žljebovima | Nodularni lijev | Odobreno FM/UL | 300Psi | Protupožarne cijevi

Pregled proizvoda

The Koncentrični reduktor s žljebovima is a grooved concentric reducer, manufactured from ductile iron (carbon steel optional) through precision casting. Rated at 300Psi (2.07MPa), it is suitable for fire sprinkler systems, HVAC, industrial water, and process piping. It is FM Approved i UL Listed, with additional certifications including ISO 9001 and CE, ensuring compliance with the world’s strictest safety and quality standards. The surface is finished with red paint (color customizable), providing excellent corrosion resistance. The grooved connection enables fast installation without welding, significantly reducing labor costs and eliminating fire hazards associated with hot work.

Koncentrični reduktor s žljebovima

Tehničke specifikacije

Koncentrični reduktor s žljebovima

Ključne značajke

• Brzo & Simple Installation – Grooved connection requires only bolt tightening, no welding or special skills, significantly reducing labor costs and project timelines.
• Enhanced Safety – Eliminates fire hazards associated with hot work such as welding and cutting, ideal for flammable or explosive environments.
• Excellent Vibration & Shock Resistance – Grooved joints allow axial movement and angular deflection, suitable for pump pulsating flow or seismic applications.
• Fleksibilnost & Easy Maintenance – Allows minor pipe movement, facilitates future system modifications, repairs, or expansions without complete disassembly.
• High Durability – Ductile iron material provides high strength and toughness, with anti-corrosion coating for extended service life.
• International Certifications – FM, UL, ISO 9001, CE – globally recognized for direct use in fire protection projects.

Prijave

• Zaštita od požara / Sprinkler sustavi – Size transition between mains and branch lines in automatic sprinkler and hydrant systems.
• HVAC sustavi – Reducer connections in chilled water, condenser water, and heating water piping.
• Industrial Water & Process Piping – Water supply, drenaža, and process media transmission in manufacturing facilities.
• Mining & Shipbuilding – Pipe diameter transitions in mine dewatering, marine fire protection, and ballast systems.
• Power Plants – Reducer connections in circulating water, rashladna voda, and auxiliary piping.
• Poljoprivredno navodnjavanje – Main-to-branch line transitions in large-scale irrigation systems.

Koncentrični reduktor s žljebovima

Pakiranje i otprema

• Packing Method：
  • Small quantities: Each reducer wrapped in bubble film, packed in export-grade cartons and palletized.
  • Large quantities: Packed in fumigation-free wooden crates or steel-framed boxes with cushioning materials to prevent transit damage.
  • Outer cartons labeled with product specifications, certification marks, and “Fire Fitting” identification for warehousing and customs clearance.
  • Special anti-rust and moisture-proof packaging available upon request.
• otprema：Supported by sea, željeznička pruga, zrak, or road transport to designated ports. Container loading and securing services provided to ensure safe transit.

Uvjeti plaćanja

• T/T, L/C po viđenju, Western Union, PayPal, Kreditna kartica, itd.

Profil tvrtke

Luoyang Datang Energy Tech Co., doo je profesionalni dobavljač industrijskih ventila, dedicated to providing reliable flow control solutions for water treatment, kemijski, ulje & plin, HVAC, i industrijskih cjevovodnih sustava diljem svijeta. All products are manufactured to international standards with CE and ISO 9001 potvrde. S preko 10 godine iskustva, moderan objekt od 80,000 m², i 200+ stručnih djelatnika, služimo klijentima u 10+ zemlje s kvalitetnim proizvodima, konkurentne cijene, i pouzdanu isporuku.

Koncentrični reduktor s žljebovima

FAQ

P1: What is the difference between concentric and eccentric reducers? Which one should I choose?
Concentric reducers have a common centerline, with the larger and smaller ends aligned on the same axis. They are ideal for vertical piping or applications where uniform flow distribution is critical. Eccentric reducers have offset centerlines and are typically used in horizontal piping to maintain consistent bottom or top alignment for drainage or air venting. For most fire protection and HVAC systems, concentric reducers are the standard choice.

Q2: What is the advantage of grooved connection over welded or flanged connection?
Grooved connections require no welding, eliminating fire hazards on site and reducing installation time by up to 80%. They also allow for pipe movement and angular deflection, making them ideal for seismic zones and vibration-prone systems. Unlike flanged connections, grooved joints require fewer bolts and less space, and allow easy disassembly for maintenance or system modifications.

Q3: What is the pressure rating of this reducer? Is it suitable for high-rise building fire systems?
The reducer is rated at 300Psi (2.07MPa), which covers the vast majority of high-rise building fire system pressures (typically 1.0–1.6MPa). For super high-rise buildings exceeding 200 meters or systems with pressure boosting, we offer higher pressure ratings (npr., 500Psi) upon request.

Q4: Can the reducer be used with both ductile iron and steel pipes?
Da. The grooved connection system is compatible with both ductile iron pipes and steel pipes, as long as the pipe ends are properly grooved according to the same standard (npr., AWWA C606 or ISO 6182-12). We recommend using our matching grooved couplings for optimal sealing and performance.

P5: What surface finish options are available for corrosion protection?
Standard finish is red painted enamel (epoxy-based) offering good corrosion resistance for indoor and general environments. We also offer galvanized, epoxy coated, and Dacromet finishes for more aggressive environments such as coastal areas or chemical plants. Please specify your environmental conditions for proper recommendation.

Koncentrični reduktor s žljebovima