General Specifications

Standard :

Singapore Standard SS245: 2014 Similar to British Standard BS 7491 Part 3:1994 and BS EN 13280:2001

Materials :

Sheet Moulding Compound(SMC)consists of:

  • Resin- Isophthalic unsaturated polyester resin conforming to BS 3532 specification
  • Fiber Glass- Low alkali fibre glass conforming to JIS R3411 to R3417 or BS 33396, BS 3496 and BS 3749 specifications
Manufacturing Process :

Hot pressed SMC compression moulding

Tank Structural Support :
Tie-rod System:

External:

  • Standard Type : Hot Dipped Galvanised Steel

Internal:

  • Standard Type : SS 304 Tie-Rod , Optional SS316
  • Roof Support : PVC/ABS pipes with GRP roof panel stiffener
External Braced System :

External:

  • Hot Dipped Galvanished Steel

Internal:

  • None (metal free inside, non-partitioned tank only)
  • Roof Support: PVC Poles with GRP roof panel stiffener
Sealant :

Non toxic PVC foam/EPDM Rubber

Bolt, Nuts, Washers :

External:

  • Standard : Hot Dipped Galvanised Steel
  • Optional : SS 304/316

Internal:

  • Standard : SS 304 (In-contact with water)
  • Optional : SS 316 (In-contact with water)

Roof :

  • Standard: Hot Dipped Galvanised Steel
  • Optional: SS 304/316
Ladder :

External:

  • Standard : Hot Dipped Galvanised Steel

Internal:

  • Standard : PVC or Aluminium
  • Optional : GRP or SS304/316
Water Level Indicator :
  • Standard : Reversed Reading Mechanical Ball Float Type (Cat & Mouse)
  • Optional : Direct Reading Clear Tube Type
Nozzel Panel :
  • Pipe nozzels not inclusive
  • Flat panels will be provided on request
GRP Panel Design

By encapsulating a 25mm ~ 50mm layer of rigid polyurethane foam, POTAGLAS pre-insulated panel could maintain the desired water temperature stored inside the tank under extreme temperature condition. POTAGLAS pre-insulated panel could be selected for water storage where there is a need to stabilize the temperature against extreme heat or freezing conditions so to prevent dew formation.

  • *Flange height (FH) varies according panel series
  • *Standard colour: gray

Performance of Panels

Characteristics Potaglas GRP –
Tank Panel Performance
Acceptance Criteria
(SS 245:2014 Specification)
Tensile Strength (MN/m²) > 103 >70 (min)
Bending Strength (MN/m²) > 171 > 100 (min)
Elastic Modulus in Bend (MN/m²) > 12260 > 6000 (min)
Glass Content (%) > 40 > 25 (min)
Barcol Hardness 57 >30 (min)
Water Absorption (%) 0.1 0.5 (max)
Skid Base Specifications
Tank Height Main Beam Sub Beam Concrete Plinth
Distance
1.0m not provided not provided 1000mm c/c
1.5m Hollow Section 50mm x 50mm x 3mm Hollow Section 50mm x 50mm x 3mm 1000mm c/c
2.0m Hollow Section 50mm x 50mm x 3mm Hollow Section 50mm x 50mm x 3mm 1000mm c/c
2.5m Hollow Section 50mm x 50mm x 3mm Hollow Section 50mm x 50mm x 3mm 1000mm c/c
3.0m Hollow Section 50mm x 50mm x 3mm Hollow Section 50mm x 50mm x 3mm 1000mm c/c
3.5m C-channel 150mm x 75mm or
I Beam 150mm x 100mm
Angle bar 6mm x 75mm x 75mm or
C-channel 50mm x 100mm
1000mm c/c
4.0m C-channel 150mm x 75mm or
I Beam 150mm x I Beam 150mm x 100mm
C-channel 50mm x 100mm 1000mm c/c
*Potaglas reserves the right to provide alternate skid base designs

Potaglas recommends an ideal concrete plinth size of 300mm (W) x 500mm (H), with maximum variance in height of not more than 2mm

Internal Tie-Rod Design

Potaglas GRP sectional water tank is constructed with bottom, side and top panels, completes with external and internal structural reinforcement and necessary tank accessories to facilitate water storage.

Main Components External Structural Support Internal Structural Support Tank Accessories
Top Panel Body Angle Pole Access Manhole
Side Panel Corner Angle Pole Support Air Vent
Bottom Panel Tie Rod Water Level Indicator
Drain/Pit Panel Flat Bar Roof Support Internal Ladder
Stay Plate In Corner Bracket External Ladder
External Braced Design
Main Components Internal Structural Support External Structural Support Tank Accessories
Top Panel Pole Flat Bar Access Manhole
Side Panel Pole Support Body Angle Internal Ladder
Bottom Panel Roof Support External Ladder
Drain/Pit Panel In Corner Bracket C-Channel Air Vent
Vertical I Beam Tube Level Indicator
Roof Flat Bar
Side I Beam Support Bracket
External Bracing Support