Wilo-TOP-SD Glandless Wilo Recirculating Pump Twin-Head Circulator With Flange Connection
Your advantages
- Direction of rotation signal lamp for displaying the correct sense of rotation (only with 3~)
- Manual power adjustment with 3 speed stages
- Twin-head pump for main/standby or parallel operation
- Pump housing with cataphoretic (KTL) coating protects against corrosion due to condensation formation
Design
Glandless twin-head circulator with flange connection (TOP-SD 30/5 with screwed connection).
Application
Hot-water heating systems of all kinds, industrial circulation systems, air-conditioning systems and closed cooling circuits
Equipment/function
Operating modes
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)
Typekey
| Example: | Wilo-TOP‐SD 40/7 |
| TOP-SD | Standard double pump (flange-end pump, TOP‐SD 30/5 with threaded connection) |
| 40/ | Nominal connection diameter |
Technical data
- 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
- Protection class 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)
Materials
- Pump housing: Grey cast iron
- Impeller: Plastic
- Shaft: stainless steel
- Bearing: Carbon, metal impregnated
Scope of delivery
- 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
Options
- Versions for special voltages on request
Accessories
- 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),
