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TSURUMI Guide Rail Fitting (TOS Set) TOS3-50 for 50mm B/C Sewage Pumps

Brand: TSURUMI
Manufacturer model number: TOS3-50
Order code: Y8ECIE5
MOQ: 1 套
Supply status: In Stock
Selected configuration: Standard item

HK$3,290.00/ 套~~Was HK$4,700.00~~-30%

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The TSURUMI TOS3-50 is Tsurumi's guide rail fitting (TOS set) for cast-iron submersible sewage pumps with a 50 mm (2-inch) discharge, covering the B-series non-clog and C-series non-clog cutter models. The duckfoot bend is fixed to the sump floor; the pump slides down two guide pipes and couples to the discharge pipe automatically, and is released simply by lifting it out. Maintenance and inspection can be done without anyone entering the sump.

This is an installation accessory, not a pump, so it has no head, flow or power rating. The pump, guide pipes and anchor bolts are not included.

Selection note: the TOS3-50 fits only the 50 mm B and C models listed in Tsurumi's selection tables below. The 50U21.5 needs the TOS5-50 instead. For a free-standing pump without guide rails, choose the BEND 50 discharge bend. For 80 mm or 100 mm pumps, see the TOS comparison table below.

What it is for

Fixed sewage pits and sumps: the pump runs up and down the guide rails and couples to, or releases from, the fixed discharge pipe automatically.
Building and industrial pump rooms: lift the pump out for routine inspection or cleaning without dismantling the discharge pipework.
Less sump entry: Tsurumi states that the TOS set connects the pump to and from the piping just by lowering and hoisting it, so maintenance does not require entering the sump.

Compatible pumps

According to Tsurumi's official selection tables, the TOS3-50 fits these 50 mm discharge models:

B-series non-clog sewage pumps: 50B2.4S, 50B2.4, 50B2.75S, 50B2.75H, 50B2.75
C-series non-clog cutter pumps: 50C2.75S, 50C2.75

Technical specifications

TSURUMI TOS3-50 guide rail fitting specifications
Item	Specification
General
Model	TOS3-50
Type	Guide rail fitting (TOS set)
Material	Cast iron
Pump discharge bore	50 mm (2 in)
Connections
Duckfoot bend outlet	Nominal dia. 50, JIS 10K flange (official Tsurumi drawings)
Companion threaded flange	Depends on market version: threaded JIS 10K flange (Asia-Pacific), 2-inch NPT (USA) or 2-inch female BSP (UK). These thread standards are not interchangeable, so please confirm the version we supply before ordering.
Bolts and nuts	2-M10 × 40L
Dimensions (Tsurumi America TOS3-50 NPT drawing)
Base footprint	200 × 160 mm
Flange height	250 mm
Required, not supplied
Guide pipes	2 pcs, 1 in (25A)
Anchor bolts	4-M16 × 120L

Sources: Tsurumi B-series catalogue (IA100), Tsurumi Australia B and C series product guides, and the Tsurumi America TOS3-50 NPT dimension drawing.

TOS series comparison

Tsurumi TOS guide rail fitting models
Model	Pump side	Outlet	Compatible pumps (official selection tables)
TOS3-50 (this product)	50 mm	50 mm	50B2.4S, 50B2.4, 50B2.75S, 50B2.75H, 50B2.75, 50C2.75S, 50C2.75
TOS3-80-80	80 mm	80 mm	80B21.5, 80C21.5, 80BZ41.5
TOS3-80-100	80 mm	100 mm	100B42.2, 100B43.7, 100B43.7H, 100BZ42.2, 100BZ43.7, 100C42.2, 100C43.7
TOS3-100-100	100 mm	100 mm	100B45.5, 100B47.5, 100BZ45.5, 100BZ47.5, 100BZ411, 100BZ411H, 100C45.5, 100C47.5, 100C411, 100C415

What's in the box

According to Tsurumi's catalogue, a TOS set includes:

Duckfoot bend
Guide support (with bolts and nuts)
Guide hook
Lifting chain, 5 m (with shackles)
Threaded flange

Items to order separately

Two guide pipes (1 in / 25A), cut to suit the sump depth.
Anchor bolts, 4-M16 × 120L.
Discharge pipe and fittings matching the threaded flange standard.
An intermediate guide bracket for deeper sumps; Tsurumi America recommends one for lift stations deeper than 15 ft (about 4.6 m).

Safety and installation

Isolate and lock off pump power before fitting or changing any guide rail component.
Lift the pump only by the supplied lifting chain and shackles or by the pump's lifting eye. Never lift it by the power or float cable. Check the chain and shackle rating against the pump's dry weight.
Anchor the duckfoot bend to a level concrete floor with the anchor bolts (4-M16 × 120L). The two guide pipes must be vertical and parallel.
Flange and thread standards must match exactly (JIS 10K, ANSI 150, BSP and NPT all differ), or the joint will leak or fail. Fit a suitable gasket at the pump-side square flange and tighten the bolts evenly.
The guide rail exists so that staff need not enter the wet well. Any sump entry is confined-space work and needs gas testing and a permit to work.

Wear parts and routine checks

Check the lifting chain and shackles regularly for wear, deformation or corrosion, and replace them if damaged.
Whenever the pump is lifted for inspection, also check the duckfoot bend coupling face and gasket. If the joint leaks, clean the faces and replace the gasket.

Reviews & Q&A

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What it is for

Fixed sewage pits and sumps: the pump runs up and down the guide rails and couples to, or releases from, the fixed discharge pipe automatically.
Building and industrial pump rooms: lift the pump out for routine inspection or cleaning without dismantling the discharge pipework.
Less sump entry: Tsurumi states that the TOS set connects the pump to and from the piping just by lowering and hoisting it, so maintenance does not require entering the sump.

Compatible pumps

According to Tsurumi's official selection tables, the TOS3-50 fits these 50 mm discharge models:

B-series non-clog sewage pumps: 50B2.4S, 50B2.4, 50B2.75S, 50B2.75H, 50B2.75
C-series non-clog cutter pumps: 50C2.75S, 50C2.75

Technical specifications

TSURUMI TOS3-50 guide rail fitting specifications
Item	Specification
General
Model	TOS3-50
Type	Guide rail fitting (TOS set)
Material	Cast iron
Pump discharge bore	50 mm (2 in)
Connections
Duckfoot bend outlet	Nominal dia. 50, JIS 10K flange (official Tsurumi drawings)
Companion threaded flange	Depends on market version: threaded JIS 10K flange (Asia-Pacific), 2-inch NPT (USA) or 2-inch female BSP (UK). These thread standards are not interchangeable, so please confirm the version we supply before ordering.
Bolts and nuts	2-M10 × 40L
Dimensions (Tsurumi America TOS3-50 NPT drawing)
Base footprint	200 × 160 mm
Flange height	250 mm
Required, not supplied
Guide pipes	2 pcs, 1 in (25A)
Anchor bolts	4-M16 × 120L

Sources: Tsurumi B-series catalogue (IA100), Tsurumi Australia B and C series product guides, and the Tsurumi America TOS3-50 NPT dimension drawing.

TOS series comparison

Tsurumi TOS guide rail fitting models
Model	Pump side	Outlet	Compatible pumps (official selection tables)
TOS3-50 (this product)	50 mm	50 mm	50B2.4S, 50B2.4, 50B2.75S, 50B2.75H, 50B2.75, 50C2.75S, 50C2.75
TOS3-80-80	80 mm	80 mm	80B21.5, 80C21.5, 80BZ41.5
TOS3-80-100	80 mm	100 mm	100B42.2, 100B43.7, 100B43.7H, 100BZ42.2, 100BZ43.7, 100C42.2, 100C43.7
TOS3-100-100	100 mm	100 mm	100B45.5, 100B47.5, 100BZ45.5, 100BZ47.5, 100BZ411, 100BZ411H, 100C45.5, 100C47.5, 100C411, 100C415

What's in the box

According to Tsurumi's catalogue, a TOS set includes:

Duckfoot bend
Guide support (with bolts and nuts)
Guide hook
Lifting chain, 5 m (with shackles)
Threaded flange

Items to order separately

Two guide pipes (1 in / 25A), cut to suit the sump depth.
Anchor bolts, 4-M16 × 120L.
Discharge pipe and fittings matching the threaded flange standard.
An intermediate guide bracket for deeper sumps; Tsurumi America recommends one for lift stations deeper than 15 ft (about 4.6 m).

Safety and installation

Isolate and lock off pump power before fitting or changing any guide rail component.
Lift the pump only by the supplied lifting chain and shackles or by the pump's lifting eye. Never lift it by the power or float cable. Check the chain and shackle rating against the pump's dry weight.
Anchor the duckfoot bend to a level concrete floor with the anchor bolts (4-M16 × 120L). The two guide pipes must be vertical and parallel.
Flange and thread standards must match exactly (JIS 10K, ANSI 150, BSP and NPT all differ), or the joint will leak or fail. Fit a suitable gasket at the pump-side square flange and tighten the bolts evenly.
The guide rail exists so that staff need not enter the wet well. Any sump entry is confined-space work and needs gas testing and a permit to work.

Wear parts and routine checks

Check the lifting chain and shackles regularly for wear, deformation or corrosion, and replace them if damaged.
Whenever the pump is lifted for inspection, also check the duckfoot bend coupling face and gasket. If the joint leaks, clean the faces and replace the gasket.

JACO自營旗艦店

TSURUMI Guide Rail Fitting (TOS Set) TOS3-50 for 50mm B/C Sewage Pumps

JACO自營旗艦店

What it is for

Compatible pumps

Technical specifications

TOS series comparison

What's in the box

Items to order separately

Safety and installation

Wear parts and routine checks

Reviews & Q&A

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TSURUMI Guide Rail Fitting (TOS Set) TOS3-50 for 50mm B/C Sewage Pumps

JACO自營旗艦店

What it is for

Compatible pumps

Technical specifications

TOS series comparison

What's in the box

Items to order separately

Safety and installation

Wear parts and routine checks

Reviews & Q&A