Product Designation System

NAC-RCL-XX | NAC = New Age Corporation | RCL = Riser Clamp with Lining | XX = Nominal pipe size (DN)

Complete Technical Specifications

Specification	Details	Specification	Details
Material (Clamp)	Mild Steel (ES 138 / A36)	Construction	Two-piece flat bar, bolted assembly
Lining Material	EPDM high-density rubber	Pipe Size Range	DN15 to DN600 (½” to 24″)
Finish Options	Electro-Galv / Hot-Dip / Pre-Galv / Plain	Operating Temp	-20°C to +110°C
Mounting Method	Rests on structural slab or beam	Noise Reduction	Up to 18 dB
Load Type	Carries vertical dead load (pipe + fluid)	Bolt Size	M10, M12, M16, M20
Installation	Bolted around pipe below load point	Standards	Egyptian Code / MSS SP-58

Load Capacity & Support Spacing Guidelines

The following load capacities are based on vertical pipe weight plus fluid content, with a 3:1 safety factor. Riser clamps must rest on structural floors, beams, or steel brackets—NOT suspended from threaded rod.

Product Code	Pipe Size	Pipe OD (mm)	Length Between Hole Centers (mm)	Bolt Size	Max Load (kg)
NAC-RCL15	½” (DN15)	21.3	57	M10	750
NAC-RCL20	¾” (DN20)	26.7	68	M10	750
NAC-RCL25	1″ (DN25)	33.4	76	M10	750
NAC-RCL32	1¼” (DN32)	42.1	90	M10	750
NAC-RCL40	1½” (DN40)	48.2	110	M10	750
NAC-RCL50	2″ (DN50)	60.3	130	M10	1,250
NAC-RCL65	2½” (DN65)	73.0	142	M12	1,250
NAC-RCL80	3″ (DN80)	88.9	161	M12	1,750
NAC-RCL100	4″ (DN100)	114.3	190	M12	1,850
NAC-RCL150	6″ (DN150)	168.3	258	M16	2,250
NAC-RCL200	8″ (DN200)	219.1	333	M16	2,250
NAC-RCL250	10″ (DN250)	273.0	409	M16	3,600
NAC-RCL300	12″ (DN300)	323.8	467	M20	3,600
NAC-RCL400	16″ (DN400)	406.4	583	M20	4,500
NAC-RCL500	20″ (DN500)	508.0	708	M20	4,500
NAC-RCL600	24″ (DN600)	609.6	833	M20	5,800

Note: Maximum load includes pipe self-weight, fluid content, and insulation. Consult structural engineer for floor loading verification on multi-story risers. For seismic zones, additional lateral restraints may be required per local codes.

Dimensional Specifications

Code	Pipe Size	Clamp Width (mm)	Material Thickness	EPDM Thickness	Weight (approx)
NAC-RCL15	½” (DN15)	40	3.0 mm	3 mm	420 g
NAC-RCL20	¾” (DN20)	45	3.0 mm	3 mm	480 g
NAC-RCL25	1″ (DN25)	50	3.0 mm	3 mm	560 g
NAC-RCL32	1¼” (DN32)	55	3.0 mm	3 mm	680 g
NAC-RCL40	1½” (DN40)	60	3.0 mm	4 mm	780 g
NAC-RCL50	2″ (DN50)	70	4.0 mm	4 mm	1.2 kg
NAC-RCL65	2½” (DN65)	80	4.0 mm	4 mm	1.5 kg
NAC-RCL80	3″ (DN80)	90	4.0 mm	4 mm	1.9 kg
NAC-RCL100	4″ (DN100)	110	5.0 mm	5 mm	2.8 kg
NAC-RCL150	6″ (DN150)	140	5.0 mm	5 mm	4.2 kg
NAC-RCL200	8″ (DN200)	170	6.0 mm	5 mm	6.5 kg
NAC-RCL250	10″ (DN250)	200	6.0 mm	6 mm	9.2 kg
NAC-RCL300	12″ (DN300)	230	8.0 mm	6 mm	13.5 kg
NAC-RCL400	16″ (DN400)	280	8.0 mm	6 mm	22.0 kg
NAC-RCL500	20″ (DN500)	340	10.0 mm	8 mm	35.0 kg
NAC-RCL600	24″ (DN600)	400	10.0 mm	8 mm	48.0 kg

Material & Finish Specifications

Steel Clamp Body

Finish Type	Coating Specification	Recommended Application
Electro-Galvanized (EG)	12–25 μm per ASTM B633	Indoor mechanical shafts, dry riser rooms
Hot-Dip Galvanized (HDG)	≥55 μm per ASTM A153	Outdoor risers, coastal environments, fire protection systems
Pre-Galvanized (PG)	Standard mill coating	General construction, standard building risers
Plain (Uncoated)	No coating	Paint-ready or controlled indoor environments

EPDM Lining Specification

• Material: EPDM (Ethylene Propylene Diene Monomer) high-density rubber
• Hardness: 65 ± 5 Shore A
• Temperature Range: -20°C to +110°C
• Properties: Load-bearing under compression, water-resistant, thermal expansion-tolerant
• Function: Vibration damping, noise reduction (up to 18 dB), anti-galvanic protection, load cushioning
• Standards: ASTM D2000 compliant

Vertical Riser Support Application

The Riser Clamp with EPDM Lining is specifically designed for vertical pipe systems that transfer dead weight through building structure, providing:

Primary Functions

• Load Transfer: Carries full vertical dead weight (pipe + fluid + insulation) through structural floor or beam
• Alignment Control: Acts as rigid guide to maintain vertical alignment through floor penetrations
• Noise Isolation: EPDM lining reduces structure-borne vibration and thermal expansion noise up to 18 dB
• Pipe Protection: Prevents pipe surface damage at support points during thermal expansion/contraction

Critical Design Note

⚠️ NOT FOR THREADED ROD SUSPENSION

This product is designed to REST on structural members, not to be suspended. The clamp transfers vertical load downward through compression. Do not attach threaded rods to this clamp for hanging applications—use Pipe Hangers (NAC-SUP series) instead.

Key Performance Characteristics

• High Load Capacity: Up to 5,800 kg (DN600/24″) for heavy multi-story risers
• 18 dB Noise Reduction: Protects occupied spaces from pipe-transmitted structure noise
• Thermal Expansion Accommodation: EPDM compresses/expands with pipe movement without chatter
• Installation Flexibility: Can be installed during initial pipe placement or added to existing risers
• Long-Term Reliability: EPDM maintains performance through repeated thermal cycles

Typical Installation Locations

• High-rise building vertical risers (HVAC, plumbing, fire protection)
• Mechanical shaft floor penetrations and support points
• Structural beam seats at equipment room levels
• Core wall riser supports in residential/commercial towers
• Plant room floor-level load transitions
• Multi-story drainage and vent stacks
• Fire protection standpipe and sprinkler risers

Application Selection Guide

System	Typical Use	Recommended Sizes	Finish	Critical Feature
Fire Protection Risers	Standpipes, sprinkler mains	DN100–DN300	Hot-Dip Galvanized	High load capacity, code-compliant support
HVAC Chilled Water Risers	Vertical distribution CHW/HHW	DN50–DN200	Hot-Dip Galvanized	Acoustic isolation in occupied buildings
Domestic Water Risers	Potable water vertical supply	DN40–DN150	Electro-Galvanized	Noise control for residential comfort
Drainage & Vent Stacks	Waste, vent, roof drainage	DN65–DN200	Pre-Galvanized	Structure noise isolation during discharge
Process Piping Risers	Industrial vertical distribution	DN80–DN300	Hot-Dip Galvanized	Heavy load capacity, thermal stability
Building Service Mains	Mixed-use high-rise systems	DN100–DN600	Hot-Dip Galvanized	Maximum load capacity for large risers

Installation Requirements

Pre-Installation Checklist

• Structural Verification: Confirm floor/beam can support calculated vertical load (pipe + fluid + insulation)
• Load Calculation: Total riser weight from clamp to top = (pipe weight/m × height) + (fluid weight/m × height) + insulation
• Clamp Placement: Position clamp at structural support points per mechanical drawings (typically every floor or every other floor)
• Support Surface: Ensure structural slab/beam is level, clean, and free from deterioration
• Alignment Verification: Confirm pipe centerline alignment through floor sleeves before final clamping

Installation Procedure

1. Prepare structural support surface

Clean and level structural slab or beam seat where clamp will rest
If using steel angle bracket, verify bracket is welded/anchored per structural drawings
Ensure support surface is continuous and will not deflect under load

2. Position clamp on pipe below load point

Open clamp by removing bolts
Position clamp around pipe just BELOW any welded support lugs or load-bearing attachments
Clamp should be positioned so load transfers through pipe wall to clamp, then to structure
Inspect EPDM lining for proper seating—ensure no gaps or displacement

3. Close and bolt clamp assembly

Align clamp halves around pipe
Insert bolts (M10, M12, M16, or M20 depending on size)
Tighten bolts gradually in stages, alternating sides to ensure even compression
Recommended torque:

• M10: 40–45 Nm
• M12: 60–65 Nm
• M16: 120–130 Nm
• M20: 200–220 Nm

CRITICAL: Do not overtighten—EPDM should compress but not extrude from clamp edges

4. Seat clamp on structural support

Lower pipe assembly so clamp rests fully on structural floor slab or beam
Verify clamp is level and making full contact with support surface
Ensure no gaps between clamp bottom and structural member
If using grout pad, allow grout to cure before loading

5. Verify load path and alignment

Check that vertical pipe alignment is maintained through floor sleeve
Confirm no binding or misalignment at penetration points
Verify clamp is not supporting lateral loads (use separate guides if needed)
Perform final walk-through inspection before system pressurization

Installation Spacing Guidelines

Building Height	Riser Clamp Spacing	Additional Considerations
Low-rise (1–5 floors)	Every floor or every other floor	Verify structural capacity of each support
Mid-rise (6–15 floors)	Every floor for DN100+, every 2 floors for smaller	Consider intermediate guides between load clamps
High-rise (16+ floors)	Every floor for all sizes	Seismic lateral restraints required per code

Why Specify New Age Riser Clamps with EPDM Lining?

Advantage	Benefit to Your Project
Integrated EPDM Lining	Factory-installed rubber ensures consistent performance—no field cutting or fitting required
18 dB Noise Reduction	Meets acoustic comfort requirements in hospitals, hotels, residential towers without additional treatments
High Load Capacity	Up to 5,800 kg per support point—handles heavy multi-story risers without intermediate supports
Thermal Expansion Isolation	EPDM cushions thermal movement without metal-to-metal chatter or structure-transmitted noise
Rigid Load-Bearing Design	Two-piece bolted construction safely transfers vertical dead load to building structure
100% Egyptian Manufacturing	3–7 day delivery (Cairo/Giza), local technical support, competitive pricing vs. imports
Certified Galvanization	Long service life in mechanical shafts, outdoor risers, and coastal high-rise environments

Product Comparison: Riser Clamps vs. Other Supports

| Feature | Riser Clamp w/ Lining | Pipe Hanger w/ Lining | Half Saddle | |—|—|—| | Load Direction | Vertical (downward to floor) | Suspended (upward to ceiling) | Horizontal (into wall) | | Mounting | Rests on structural floor/beam | Hangs from threaded rod | Mounts to vertical wall | | Vibration Isolation | ✓ EPDM lining | ✓ EPDM lining | ✗ Metal contact | | Noise Reduction | Up to 18 dB | Up to 18 dB | None | | Load Capacity | 750–5,800 kg | 460–950 kg | 35–350 kg | | Typical Use | Vertical risers (multi-story) | Horizontal ceiling runs | Wall-mounted horizontal/vertical | | Pipe Orientation | Vertical only | Horizontal only | Horizontal or vertical |

Riser System Design Considerations

Load Calculation Example

Scenario: 10-story building with DN150 (6″) chilled water riser, 30m total height

1. Pipe Weight: 40.3 kg/m × 30m = 1,209 kg
2. Fluid Weight (water): (π × 0.1683²/4) × 1000 kg/m³ × 30m = 668 kg
3. Insulation Weight: ~8 kg/m × 30m = 240 kg
4. Total Load: 1,209 + 668 + 240 = 2,117 kg

Support Selection: NAC-RCL150 (max load 2,250 kg) ✓ Adequate with safety margin

Recommendation: Install riser clamps every 2-3 floors with intermediate pipe guides between clamps for alignment control.

Structural Coordination

• Floor Loading: Confirm structural drawings show adequate slab/beam capacity at clamp locations
• Penetration Sleeves: Oversized sleeves (pipe OD + 100mm minimum) to allow thermal expansion
• Fire Stopping: Coordinate with fire protection contractor for proper sleeve fire-stop systems
• Seismic Bracing: In seismic zones, add lateral restraints per ASCE 7 or Egyptian Seismic Code

Standards & Certifications

• ✓ Egyptian Mechanical Code – Vertical riser support spacing, load calculations, structural coordination
• ✓ NFPA 13 – Fire protection riser support requirements (where applicable)
• ✓ MSS SP-58 – Pipe support types and geometry equivalence (riser clamp category)
• ✓ ASTM B633 – Electro-Galvanized coating specification (12–25 μm)
• ✓ ASTM A153 – Hot-Dip Galvanized coating specification (≥55 μm)
• ✓ ASTM D2000 – EPDM rubber material specification
• ✓ Egyptian Standard ES 138 – Mild steel material classification (equivalent to ASTM A36)
• ✓ ISO 9001:2015 – Quality management system certification

Engineering Support

Technical Assistance:

• Vertical riser load calculation verification (pipe + fluid + insulation weight)
• Support spacing recommendations based on building height and pipe size
• Structural coordination for floor loading and beam seat design
• Acoustic performance calculations for noise-sensitive buildings
• Thermal expansion analysis for riser systems
• Seismic lateral restraint design (coordination with structural engineer)
• On-site installation guidance and contractor coordination

Response Time: Technical queries answered within 24 hours

After-Sales Support: Product issue resolution, installation troubleshooting, fast replacement for defects

Custom Solutions: Special sizes (DN > 600mm), heavy-duty brackets, or custom EPDM grades available for unique high-rise projects

Support Limitations & Alternative Products

When NOT to Use Riser Clamps

❌ Horizontal piping runs (use Pipe Hangers or Saddles instead)
❌ Suspended ceiling applications (use Pipe Hangers with threaded rod)
❌ Light-duty branch lines (oversized for small pipes—use Saddles instead)
❌ Applications without structural floor support (requires solid bearing surface)

Recommended Alternatives

For applications requiring different support characteristics:

• Horizontal ceiling runs: Use Pipe Hanger with EPDM Lining (NAC-SUP-1XX) suspended from threaded rod
• Wall-mounted vertical risers: Use Half Saddle (NAC-HS) for wall attachment
• Light branch lines: Use Light Saddle (NAC-LS) for smaller diameter pipes
• Adjustable height applications: Use clevis hangers with threaded rod adjustment
• Non-acoustic applications: Use Riser Clamp without lining for cost savings (if acoustic isolation not required)

Trusted on Major Projects

New Age Riser Clamps with EPDM Lining are specified across Egypt’s most demanding high-rise infrastructure:

• New Administrative Capital – Government tower HVAC and fire protection risers
• Opera House Complex – Acoustic-sensitive vertical distribution systems
• Military Complex Projects – Secure facility mechanical risers
• New Giza Development – Residential high-rise plumbing and HVAC risers
• Cairo Downtown High-Rises – Historic building retrofit vertical systems
• Upper Egypt Hospitals – Medical facility multi-story mechanical systems
• Red Sea Resort Towers – Coastal high-rise with corrosive environment protection
• Industrial High-Bay Facilities – Heavy process piping vertical distribution

Trusted by leading contractors: Orascom Construction, Hassan Allam Holding, Arab Contractors

 

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100% Egyptian Manufacturing | ISO 9001:2015 Certified | Trusted by Egypt’s Top Contractors