Pumps for Steam | McMaster-Carr

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51 Products

About Sump, Water-Removal, Condensate, and Submersible Pumps

How to Prime Your Pump

How to Determine Feet of Head

Steam Condensate Pumps with Tank

Designed for use in low-pressure steam systems, these pumps capture steam in the attached tank and return hot condensate to your boiler or feed unit. They are activated by a float switch, turning on and off when condensate level reaches a certain depth.

Pumps with cast iron tank are for continuous use and have a longer service life than carbon steel.

Maintenance kit for pump with cast iron tank includes a shaft, a bushing, a thrust washer, a spring washer, an oil seal, and snap rings.

Cast Iron Tank

Cast Iron Tank

		Max. Flow Rate, gpm				Level							Overall
Electrical Connection Type	Tank Cap., gal.	@ 35 Ft. of Head	@ 50 Ft. of Head	Max. Ft. of Head, ft.	Max. Pressure, psi	Turn On	Turn Off	Temp. Range, °F	Horsepower	Current, A	Intake Pipe Size	Discharge Pipe Size	Ht.	Wd.	Dp.		Each
120V AC/240V AC, Single Phase—With Thermal Overload Protection
Hardwire	8	6.5	5.8	69	30	7 1/4"	5 1/4"	160° to 200°	1/4 hp	2.5/5	2 NPT Female	1 NPT Female	26"	17"	17"	0000000	000000000
Hardwire	8	13	__	46	20	7 1/4"	5 1/4"	160° to 200°	1/3 hp	3.2/6	2 NPT Female	1 NPT Female	26"	17"	17"	0000000	00000000

Maintenance Kit

0000000

Each

0000000

Corrosion-Resistant Steam Condensate Pump with Tank

The stainless steel tank has excellent corrosion resistance. Designed for use in low-pressure steam systems, these pumps capture steam in the attached tank and return hot condensate to your boiler or feed unit. They are activated by a float switch, turning on and off when condensate level reaches a certain depth.

	Max. Flow Rate, gpm					Level							Overall
Tank Cap., gal.	@ 1 Ft. of Head	@ 10 Ft. of Head	@ 35 Ft. of Head	Max. Ft. of Head, ft.	Max. Pressure, psi	Turn On	Turn Off	Temp. Range, °F	Horsepower	Current, A	Intake Pipe Size	Discharge Pipe Size	Ht.	Wd.	Dp.		Each
120V AC, Single Phase—With Thermal Overload Protection
Hardwire
8	44	41	26	46	20	7"	4 1/2"	35° to 250°	1/3 hp	5.6	2 NPT Female	3/4 NPT Female	12 1/2"	12 1/2"	21 1/2"	00000000	000000000
15	44	41	26	46	20	9"	4 1/2"	35° to 250°	1/3 hp	5.6	2 NPT Female	3/4 NPT Female	14 3/8"	17"	23 1/4"	00000000	00000000

Extended-Life Steam Condensate Pumps with Tank

To handle high condensate volume, the workload is distributed between two pumps for a longer service life than standard steam condensate pumps. The second pump provides redundancy so one pump can operate while you work on the other. Use in low-pressure steam systems to capture hot condensate and return it to your boiler or feed unit. Pumps turn on and off when condensate level reaches a certain depth.

Maintenance kit includes a shaft, a bushing, a thrust washer, a spring washer, an oil seal, and snap rings. Purchase two kits to repair this pump.

	Max. Flow Rate, gpm				Level							Overall
Tank Cap., gal.	@ 35 Ft. of Head	@ 50 Ft. of Head	Max. Ft. of Head, ft.	Max. Pressure, psi	Turn On	Turn Off	Temp. Range, °F	Horsepower	Current, A	Intake Pipe Size	Discharge Pipe Size	Ht.	Wd.	Dp.		Each
120V AC/240V AC, Single Phase—With Thermal Overload Protection
Hardwire
15	13	12	46	20	6 1/2", 7 1/2"	4 1/4", 5 1/4"	160° to 200°	1/3 hp	3.2/6	2 NPT Female	1 NPT Female	24"	22 1/2"	22 1/2"	0000000	000000000

Maintenance Kit

0000000

Each

0000000

Extended-Life High-Flow Steam Condensate Pumps with Tank

To handle high condensate volume, the workload is distributed between two pumps for a longer service life than standard high-flow steam condensate pumps. The second pump provides redundancy so one pump can operate while you work on the other. These pumps move a higher volume of condensate than standard steam condensate pumps. Use them in low-pressure steam systems to capture hot condensate and return it to your boiler or feed unit. Pumps turn on when the tank is 2/3 full and turn off when condensate drops to 6" deep.

	Max. Flow Rate, gpm										Overall
Tank Cap., gal.	@ 35 Ft. of Head	@ 50 Ft. of Head	Max. Ft. of Head, ft.	Max. Pressure, psi	Turn-Off Level	Temp. Range, °F	Horsepower	Current, A	Intake Pipe Size	Discharge Pipe Size	Ht.	Wd.	Dp.		Each
120V AC/240V AC, Single Phase—With Thermal Overload Protection
Hardwire
15	35	25	71	25	6"	35° to 210°	1/3 hp	4.4/8.8	2 NPT Female	1 NPT Female	20"	18"	27"	0000000	000000000
20	35	25	71	25	6"	35° to 210°	1/3 hp	4.4/8.8	2 NPT Female	1 NPT Female	21"	25"	25"	0000000	00000000

Replacement Vent Pipe Assembly	Each	000000
Maintenance Seal Kit	Each	000000
Replacement Tank Gasket	Each	00000
Replacement Impeller	Each	000000
Replacement Pump and Motor Assembly Kit	Each	00000000

High-Flow Steam Condensate Pumps with Tank

Move a higher volume of condensate than standard steam condensate pumps. Use these pumps in low-pressure steam systems to capture hot condensate and return it to your boiler or feed unit. They turn on when the tank is 2/3 full and turn off when condensate drops to 6" deep.

	Max. Flow Rate, gpm										Overall
Tank Cap., gal.	@ 35 Ft. of Head	@ 50 Ft. of Head	Max. Ft. of Head, ft.	Max. Pressure, psi	Turn-Off Level	Temp. Range, °F	Horsepower	Current, A	Intake Pipe Size	Discharge Pipe Size	Ht.	Wd.	Dp.		Each
120V AC/240V AC, Single Phase—With Thermal Overload Protection
Hardwire
6	35	25	71	25	6"	30° to 210°	1/3 hp	4.4/8.8	2 NPT Female	1 NPT Female	13"	15"	26"	0000000	000000000
15	35	25	71	25	6"	30° to 210°	1/3 hp	4.4/8.8	2 NPT Female	1 NPT Female	20"	18"	27"	0000000	00000000
20	35	25	71	25	6"	30° to 210°	1/3 hp	4.4/8.8	2 NPT Female	1 NPT Female	19"	25"	25"	0000000	00000000

Maintenance Seal Kit	Each	0000000
Replacement Float Switch for Pumps with 15 gal. and 20 gal. Tank Cap.	Each	000000
Replacement Impeller	Each	000000
Replacement Tank Gasket	Each	00000
Replacement Pump and Motor Assembly Kit	Each	00000000
Replacement Vent Pipe Assembly	Each	00000
Replacement Float Switch for Pumps with 6 gal. Tank Cap.	Each	000000

Steam-Powered Jet Pumps

Use plant steam to pump liquids and gases, prime pumps, and remove fumes. When high-pressure steam enters the intake, it creates suction that draws a second liquid or gas into the pump body and discharges a pressurized blend of the two. The discharge pressure is greater than the suction flow but lower than the intake pressure. Gas suction flow is calculated using steam at atmospheric pressure. They have no moving parts or seals, eliminating downtime for lubrication and repairs. They're also known as eductors, ejectors, and injectors.

Note: Liquid suction flow rate is calculated using 80 psi steam at 0-40 feet of discharge head.

Bronze is more corrosion resistant than cast iron.

316 stainless steel pumps provide the most corrosion resistance.

Liquid Suction Flow Rate, gpm			Gas Suction Flow, cfm				Intake Pressure, psi			Suction		Intake		Discharge		Overall
@ 5 ft. of Lift	10 ft. of Lift	@ 20 ft. of Lift	@ 20 psi Steam	@ 50 psi Steam	@ 80 psi Steam	Max. Suction Lift, ft.	For Liquids	For Gases	Temp. Range, °F	Pipe Size	Thread Type	Pipe Size	Thread Type	Pipe Size	Thread Type	Lg.	Wd.		Each
For Use With Air, Inert Gas, Steam, Water
Cast Iron
6	5	3	5	4	3	20	35-150	20-80	-20° to 150°	1/2	NPT	3/8	NPT	1/2	NPT	4 1/2"	1 1/8"	0000000	0000000
10	9	5	8	6	6	20	35-150	20-80	-20° to 150°	3/4	NPT	1/2	NPT	3/4	NPT	5 7/8"	1 1/4"	0000000	000000
17	15	9	14	11	10	20	35-150	20-80	-20° to 150°	1	NPT	3/4	NPT	1	NPT	7 1/8"	1 3/4"	0000000	000000
31	27	15	24	20	17	20	35-150	20-80	-20° to 150°	1 1/4	NPT	1	NPT	1 1/4	NPT	9"	2 3/8"	0000000	000000
51	44	25	40	32	28	20	35-150	20-80	-20° to 150°	1 1/2	NPT	1	NPT	1 1/2	NPT	11"	2 5/8"	0000000	000000
93	80	46	73	58	51	20	35-150	20-80	-20° to 150°	2	NPT	1 1/4	NPT	2	NPT	14 3/8"	3 1/2"	0000000	000000
Bronze
6	5	3	5	4	3	20	35-150	20-80	-20° to 150°	1/2	NPT	3/8	NPT	1/2	NPT	4 1/2"	1 1/8"	0000000	000000
10	9	5	8	6	6	20	35-150	20-80	-20° to 150°	3/4	NPT	1/2	NPT	3/4	NPT	5 7/8"	1 1/4"	0000000	000000
17	15	9	14	11	10	20	35-150	20-80	-20° to 150°	1	NPT	3/4	NPT	1	NPT	7 1/8"	1 3/4"	0000000	000000
31	27	15	24	20	17	20	35-150	20-80	-20° to 150°	1 1/4	NPT	1	NPT	1 1/4	NPT	9"	2 3/8"	0000000	000000
51	44	25	40	32	28	20	35-150	20-80	-20° to 150°	1 1/2	NPT	1	NPT	1 1/2	NPT	11"	2 5/8"	0000000	000000
93	80	46	73	58	51	20	35-150	20-80	-20° to 150°	2	NPT	1 1/4	NPT	2	NPT	14 3/8"	3 1/2"	0000000	00000000
316 Stainless Steel
6	5	3	5	4	3	20	35-150	20-80	-150° to 150°	1/2	NPT	3/8	NPT	1/2	NPT	4 1/2"	1 1/8"	0000000	000000
10	9	5	8	6	6	20	35-150	20-80	-150° to 150°	3/4	NPT	1/2	NPT	3/4	NPT	5 7/8"	1 1/4"	0000000	000000
17	15	9	14	11	10	20	35-150	20-80	-150° to 150°	1	NPT	3/4	NPT	1	NPT	7 1/8"	1 3/4"	0000000	000000
51	44	25	40	32	28	20	35-150	20-80	-150° to 150°	1 1/2	NPT	1	NPT	1 1/2	NPT	11"	2 5/8"	0000000	00000000
93	80	46	73	58	51	20	35-150	20-80	-150° to 150°	2	NPT	1 1/4	NPT	2	NPT	14 3/8"	3 1/2"	0000000	00000000

Mechanical Pump Shaft Seals with Extended Spring

Seal with Retainer and Straight Spring

For use in waste water, boiler feed, and compressor pumps, these seals have an extra-long spring that accommodates variations in seal cavity length. They come furnished as two pieces—the seal and the seat. The seal is comprised of the case, spring, diaphragm, and washer, which come locked together as one piece. The seat is comprised of the seat and the gasket. Products cannot be sold outside North America due to restrictions.

EPDM diaphragms are more resistant to water and steam than Buna-N and Viton® fluoroelastomer, but aren’t as resistant to oils and chemicals.

Carbon washers are for use with clean liquids.

Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.

For technical drawings and 3-D models, click on a part number.

Inch

			Seal			Seat			Material
For Shaft Dia.	Manufacturer Equivalent Number	Manufacturer/ Brand Equivalent	ID	OD	Wd.	ID	OD	Wd.	Washer	Seat	Spring Shape	Includes	Max. Pressure, psi	Cannot Be Sold To		Each
304 Stainless Steel Case and Spring with EPDM Rubber Diaphragm and Gasket
1/2"	168E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.500"	0.915"	0.812"	0.535"	1.000"	0.312"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	000000
5/8"	359E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.625"	1.180"	0.875"	0.671"	1.250"	0.406"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
3/4"	358E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.750"	1.302"	0.875"	0.780"	1.375"	0.406"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000
7/8"	703E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.875"	1.422"	0.937"	0.921"	1.500"	0.406"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
1"	235E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.000"	1.552"	1.000"	1.031"	1.625"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
1 1/8"	356E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.125"	1.753"	1.062"	1.161"	1.750"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
1 1/4"	185E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.878"	1.062"	1.291"	1.875"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
1 3/8"	177E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.375"	2.001"	1.125"	1.411"	2.000"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
1 1/2"	758E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.500"	2.124"	1.125"	1.546"	2.125"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
1 5/8"	238E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.625"	2.446"	1.375"	1.929"	2.375"	0.500"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
1 3/4"	237E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.750"	2.446"	1.375"	1.796"	2.500"	0.500"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
1 7/8"	340E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.875"	2.519"	1.500"	1.927"	2.625"	0.500"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	000000
2"	267E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	2.000"	2.724"	1.500"	2.055"	2.750"	0.500"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	000000

Metric

		Seal			Seat			Material
For Shaft Dia., mm	Manufacturer/ Brand Equivalent	ID, mm	OD, mm	Wd., mm	ID, mm	OD, mm	Wd., mm	Washer	Seat	Spring Shape	Includes	Max. Pressure, psi	Cannot Be Sold To		Each
304 Stainless Steel Case and Spring with EPDM Rubber Diaphragm and Gasket
12	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	12.000	23.500	20.500	14.700	25.500	8.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	000000
16	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	16.000	27.000	22.250	17.100	31.750	10.250	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
25	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	25.000	39.200	25.500	26.500	41.250	11.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000