Wilo-TOP-SD

Glandless twin-head circulator with flange connection (TOP-SD 30/5 with screwed connection).

Hot-water heating systems of all kinds, industrial circulation systems, air-conditioning systems and closed cooling circuits

Operating modes

• Speed-stage switching

Manual functions

• Setting the speed stages: 3 speed stages

Automatic functions

• Internal protection against non-approved high winding temperatures (only for pumps for which P2 ≤180 W)

Signal and display functions

• Thermal winding contact (WSK, potential-free NC contact) (only for pumps for which P2 ≥180 W) for full motor protection in all speed levels with optional tripping unit SK 602N/SK 622N
• Rotation monitoring lamp (standard equipment for 3~pumps only)
• Display of selected speed stage

Dual pump management (double pump or 2 x single pumps)

• Main/standby operation or parallel operation (for automatic fault-actuated switchover/time-dependent pump cycling, a corresponding switchgear must be provided on-site)

Equipment

• For flange-end pumps: Flange versions
  • Standard version for DN 32 to DN 65 pumps: PN 6/10 combination flange (PN 16 flange according to EN 1092-2) for PN 6 and PN 16 counter flanges,
  • Standard version for pumps DN 80: PN 6 flange (designed for PN 16 according to EN 1092-2) for PN 6 counter flange
• Mounting bracket set-up (with horizontal shaft only):
  • Standard version for pumps TOP-SD 40/15, 50/15, all TOP-SD 65 and TOP-SD 80.
  • Special version for pumps TOP-SD 32/10, 40/3, 40/7, 40/10, 50/7, 50/10. M10 drilled hole for mounting bracket set-up available on request.
• Double switchover valve in pump housing
• Cable inlet possible from both sides (only for 1~pumps and 3~pumps with P2 ≥ 180 W)

• Permitted temperature range -20 °C to +130 °C, for short periods (2 h) to +140 °C (TOP-SD 80/15, 80/20: -20 °C to +110 °C)
• Mains connection:
  • 1~230 V, 50 Hz (depending on type)
  • 3~230 V, 50 Hz (with optional switching plug)
  • 3~400 V, 50 Hz
• IP rating IP X4D
• Screwed connection or flange connection (depending on type) Rp 1¼ to DN 80
• Max. operating pressure of standard version: 6/10 bar or 6 bar (special version: 10 bar)

• Pump housing: Grey cast iron
• Impeller: Plastic
• Shaft: stainless steel
• Bearing: Carbon, metal impregnated

• Twin-head pump
• Gaskets for threaded connection (only with TOP-SD 30/5)
• Washers for flange screws (for nominal connection diameters DN 32 - DN 65)
• Installation and operating instructions

• Versions for special voltages on request

• Threaded connections for screw thread (for TOP-SD 30/5)
• Counter flanges for flange connection
• Mounting brackets for pump fixation
• Blind flanges
• Wilo tripping units SK 602N/SK 622N
• For pumps 3~400 V:
  • Switching plug 3~230 V (2 plugs required),

• Permitted temperature range -20 °C to +130 °C, for short periods (2 h) to +140 °C (TOP-SD 80/15, 80/20: -20 °C to +110 °C)
• Mains connection:
  • 1~230 V, 50 Hz (depending on type)
  • 3~230 V, 50 Hz (with optional switching plug)
  • 3~400 V, 50 Hz
• IP rating IP X4D
• Screwed connection or flange connection (depending on type) Rp 1¼ to DN 80
• Max. operating pressure of standard version: 6/10 bar or 6 bar (special version: 10 bar)

• Pump housing: Grey cast iron
• Impeller: Plastic
• Shaft: stainless steel
• Bearing: Carbon, metal impregnated

• Twin-head pump
• Gaskets for threaded connection (only with TOP-SD 30/5)
• Washers for flange screws (for nominal connection diameters DN 32 - DN 65)
• Installation and operating instructions

• Versions for special voltages on request

• Threaded connections for screw thread (for TOP-SD 30/5)
• Counter flanges for flange connection
• Mounting brackets for pump fixation
• Blind flanges
• Wilo tripping units SK 602N/SK 622N
• For pumps 3~400 V:
  • Switching plug 3~230 V (2 plugs required),