What is the maximum head/flow of the Grundfos CR 1-7?

The CR 1-7 produces approximately 315 ft of head at 8 GPM (best efficiency point), with a shutoff head of about 378 ft. That corresponds to roughly 136 psi at the BEP.

What is the Grundfos CR 1-7 material number / part number?

The primary material number for this configuration (3-phase 208-230/460, HQQE seal) is 99915877. Other voltage and seal options are listed in the variants table on this page.

Which motor does the Grundfos CR 1-7 use?

This SKU ships with a 3/4 HP, 3-phase, 208-230/460 V NEMA TEFC motor on a 56C frame. Other motor configurations and IE3/IE5 upgrades are available on request.

Can the Grundfos CR 1-7 be paired with a variable frequency drive (VFD)?

Yes. Order the matching E-Pump variant with integrated MLE permanent-magnet motor, or pair this fixed-speed pump with a Grundfos CUE external VFD.

What is the typical lead time for the Grundfos CR 1-7?

Many configurations of the CR 1 series ship from stock through Grundfos USA. Contact ForeverPure Place for the current lead time on this specific material number (99915877).

Grundfos CR 1-7 3/4HP 3PH Pump | P/N 99915877

Descripción

Grundfos CR 1-7 — material number 99915877 — is a 7-stage Grundfos CR vertical multistage centrifugal pump with a 3/4 HP, 3-phase, 208-230/460 V NEMA TEFC motor and a HQQE shaft seal.

The 7-stage build delivers 315 ft of head (8 GPM, ~136 psi) at the BEP and a 378 ft shutoff — the typical pick for mid-rise pressure boosting, RO pretreatment, and cooling-tower makeup.

Specifications

Model	CR 1-7
Stages	7
Flow at BEP	8 GPM
Head at BEP	315 ft (~136 psi)
Shutoff head (approx.)	378 ft
Motor	3/4 HP, 3-phase, 208-230/460 V, NEMA TEFC on 56C frame
Shaft seal	HQQE (SiC/Carbon EPDM)
Materials	Cast iron head/base; 304 SS chambers and impellers
Material number (P/N)	99915877
Shipping weight	61 lbs
Frequency	60 Hz
Brand	Grundfos
Country of origin	Denmark / USA (varies by date code)

Dimensions

Approximate dimensions (vertical pump)
Overall height (pump + motor)	37.7 in
Pump body height (7 stages)	25.7 in
Base height (stage 0)	14.5 in
Added height per stage	1.6 in
Motor frame	See spec table above
Mounting	Vertical foot-mounted
Motor orientation	Vertical with NEMA motor stool above pump head

Note: Dimensions are approximate and based on the Grundfos CR 1 data booklet. Exact dimensions vary slightly by motor frame and base style. For certified installation drawings of this specific material number, request a quote and we'll provide the official Grundfos dimensional drawing.

Pipe Connections

The Grundfos CR 1 series is available with multiple connection types to match your installation requirements. Connection sizes for this series:

Connection options
Standard pipe connection (oval flange)	1 inch NPT
ANSI flange size	1-1/4 inch
ANSI flange class	250 lb
Inlet / outlet orientation	Suction and discharge on the same horizontal centerline (in-line)

Companion connections (gaskets, bolts, ANSI flanges or Victaulic couplings) are ordered separately. Contact ForeverPure for the matched connection kit part numbers for your specific configuration.

Available Configurations / Material Numbers

The CR 1-7 ships in several phase, voltage, and seal combinations. Material numbers for the most common variants:

Phase / Voltage	Seal	Motor HP	Weight	Material Number
1-phase, 115/208-230	HQQE	3/4 HP	71 lbs	`99915809`
3-phase, 208-230/460	HQQE	3/4 HP	61 lbs	`99915877`
1-phase, 115/208-230	HQQV	3/4 HP	71 lbs	`99915824`
3-phase, 208-230/460	HQQV	3/4 HP	61 lbs	`99915892`
1-phase, 115/208-230	HQQE	3/4 HP	81 lbs	`99915838`
3-phase, 208-230/460	HQQE	3/4 HP	72 lbs	`99915908`
1-phase, 115/208-230	HQQV	3/4 HP	81 lbs	`99915857`
3-phase, 208-230/460	HQQV	3/4 HP	72 lbs	`99915927`

Typical Applications

Boiler feed water in industrial steam plants
Cooling tower makeup water
High-rise commercial pressure boosting
HVAC chilled water circulation
Fire protection jockey pump
Light industrial process water

Datasheet & Documentation

Frequently Asked Questions

What is the maximum head/flow of the Grundfos CR 1-7?: The CR 1-7 produces approximately 315 ft of head at 8 GPM (best efficiency point), with a shutoff head of about 378 ft. That corresponds to roughly 136 psi at the BEP.
What is the Grundfos CR 1-7 material number / part number?: The primary material number for this configuration (3-phase 208-230/460, HQQE seal) is 99915877. Other voltage and seal options are listed in the variants table on this page.
Which motor does the Grundfos CR 1-7 use?: This SKU ships with a 3/4 HP, 3-phase, 208-230/460 V NEMA TEFC motor on a 56C frame. Other motor configurations and IE3/IE5 upgrades are available on request.
Can the Grundfos CR 1-7 be paired with a variable frequency drive (VFD)?: Yes. Order the matching E-Pump variant with integrated MLE permanent-magnet motor, or pair this fixed-speed pump with a Grundfos CUE external VFD.
What is the typical lead time for the Grundfos CR 1-7?: Many configurations of the CR 1 series ship from stock through Grundfos USA. Contact ForeverPure Place for the current lead time on this specific material number (99915877).

Related Products

Need quotes, lead-time confirmation, or technical assistance? Contact ForeverPure Place — we'll price the exact configuration (99915877) and check current stock with Grundfos USA.