The Shilla Fire SL-23 Series encompasses an elite lineup of lever-operated stationed firefighting monitors engineered and manufactured by Shilla Fire Co., Ltd. (Korea). The complete industrial catalog features all eight certified heavy-duty models: SL-23N, SL-23NB, SL-23A, SL-23G, SL-23AB, SL-23GB, SL-23WJ, and SL-23WJ-T. These critical master stream appliances are frontline firefighting solutions installed across crude oil storage tank towers, maritime tanker loading terminals, heavy industrial fire engines, and oil refineries.

A primary operational hallmark of the Shilla Fire SL-23 Series is its smooth lever-guided directional control mechanism paired with double ball race stainless steel swivel joints. This hydrodynamic construction enables a single firefighting operator to execute full 360° continuous horizontal rotation and rapid vertical elevation from -45° downwards to +85° upwards. Independent mechanical friction locks securely fix the monitor at desired trajectories, allowing continuous targeted stream delivery without constant manual holding.

The SL-23 Series is categorized into specialized engineering configurations:
1. SL-23N / SL-23NB Series: Features an S-Type streamlined single-waterway configuration available in lightweight Hard-Anodized Aluminium or Cast Bronze. The SL-23NB variant incorporates an integral built-in isolation valve directly at the monitor base for rapid local shut-off without requiring auxiliary line valves.
2. SL-23A / SL-23G / SL-23AB / SL-23GB Series: Features a balanced dual-waterway internal geometry cast from corrosion-resistant Bronze ASTM C83600 (SL-23A) or heavy-duty Ductile Cast Iron with Brass swivels (SL-23G). The dual flow channel balances internal hydrodynamic reaction forces, dramatically reducing turbulence and pressure loss at high flow rates up to 2,000 GPM. Suffix "B" models (SL-23AB, SL-23GB) feature built-in isolation valves.
3. SL-23WJ / SL-23WJ-T Series (Waterway Jacket Type - FM Approved): Certified under rigorous FM Approval standards, constructed with heavy Stainless Steel (SUS304/SUS316) waterways combined with Bronze/Aluminium components for exceptional resistance against harsh marine environments and aggressive chemical exposure. The SL-23WJ-T variant offers an elevated tower profile tailored for offshore drilling platforms and petrochemical tank farms.

• Manufacturer: Shilla Fire Co., Ltd. (Korea)
• Product Series: Lever-Operated Stationed Firefighting Monitors
• Rated Operating Pressure: 0.7 – 1.4 MPa (7 – 14 bar / 100 – 200 psi)
• Hydrostatic Test Pressure: 2.0 MPa (20 bar / 20 kgf/cm²)
• Discharge Flow Capacity: 200 GPM – 2,000 GPM (760 LPM – 7,600 LPM depending on paired nozzle)
• Horizontal Rotation Range: 360° continuous with manual locking mechanism
• Vertical Elevation Range: Upwards +80° ~ +85° / Downwards -40° ~ -45°
• Exterior Finish: High-durability Fire Red Epoxy Powder Coating

--- DETAILED SPECIFICATIONS: COMPLETE 8-MODEL LINEUP ---
• SL-23N: Standard S-Type Lever Monitor | Material: Aluminium Alloy or Cast Bronze | Inlet Size: ANSI #150 Flange 2-1/2", 3", 4" (or KS16K 65A) | Outlet Size: 2-1/2" NHT Male | Net Weight: 15 – 22 kg
• SL-23NB: S-Type Lever Monitor with Built-in Isolation Valve | Material: Aluminium or Cast Bronze | Inlet Size: ANSI #150 Flange 2-1/2", 3", 4" | Outlet Size: 2-1/2" NHT Male | Net Weight: 18 – 26 kg
• SL-23A: Dual-Waterway Lever Monitor | Material: Heavy Cast Bronze (ASTM C83600) | Inlet Size: ANSI #150 Flange 2-1/2", 3", 4" | Outlet Size: 2-1/2" NHT Male | Net Weight: Approx. 25 kg
• SL-23G: Dual-Waterway Lever Monitor | Material: Heavy-duty Cast Iron body with Brass swivels | Inlet Size: ANSI #150 Flange 2-1/2", 3", 4" | Outlet Size: 2-1/2" NHT Male | Net Weight: Approx. 24 kg
• SL-23AB: Cast Bronze Dual-Waterway Monitor with Built-in Isolation Valve | Inlet: ANSI #150 Flange 2-1/2", 3", 4" | Outlet: 2-1/2" NHT Male | Net Weight: Approx. 28 kg
• SL-23GB: Cast Iron / Brass Dual-Waterway Monitor with Built-in Isolation Valve | Inlet: ANSI #150 Flange 2-1/2", 3", 4" | Outlet: 2-1/2" NHT Male | Net Weight: Approx. 27 kg
• SL-23WJ: Premium FM Approved Waterway Jacket Monitor | Material: Stainless Steel (SUS304/SUS316) + Bronze/Aluminium | Inlet: ANSI #150 Flange 2-1/2", 3", 4" | Outlet: 2-1/2" NHT Male | Ultimate marine corrosion resistance
• SL-23WJ-T: FM Approved Tower-Mounted Waterway Jacket Monitor (T-Type) | Material: Stainless Steel SUS304/316 | Inlet: ANSI #150 Flange 3", 4" | Outlet: 2-1/2" or 3" Male | Tailored for offshore and tank terminals

• Quality Approvals & Certifications: FM Approved, KFI (Korea Fire Institute), NFPA 1964 standard compliant