325 SERIES PUMPS

The NLB 325 Series pump is an advanced design quintuplex pump with exceptional flexibility and versatility to efficiently meet the requirements of a wide range of pumping services. The unit features a simple, rugged design to meet the heavy – duty requirements of continuous operation and to minimize maintenance.

Fluid End Features Include:

Easily configured for operating pressures from 8 000 to 40 000 psi in under 20 minutes.

A single stainless steel frame plate and swing-out manifold is used for all operating pressures.

The design features minimum volumetric clearance and stress, with maximum shock and pressure resistance.

Passages are drilled to minimize turbulence.

The valve seat and stuffing boxes are precision-machined from high-grade stainless steel.

Stainless steel valves have a rugged, double guided design that improves valve life by ensuring alignment. Seats are beveled and are also made from hardened stainless steel.

Pump features Colomony®-coated plungers for 8-12K operation and solid tungsten carbide plungers for 15-40K operation.

Power Frame Features include:

Horizontal configuration provides easy access and low center of gravity.

Rugged, cast-iron housing with gravity lubrication and large oil reservoir.

Forged steel crankshaft mounted in tapered roller bearings. Symmetrical design permits easy conversion to opposite-hand drive.

Large-diameter cylinder crossheads operating in full circular guides, fitted with hardened wrist pins

Ground crosshead stub shafts with lipped seals to keep water and dust out of crankcase.

High mechanical efficiency.

Plunger cover for cleanliness and operator protection.

VIEW BROCHURE

Part Number	Plunger Dia.		Pump RPM
			100		200		300		400		500		Max. Pressure
	IN	MM	GPM	L/MIN	GPM	L/MIN	GPM	L/MIN	GPM	L/MIN	GPM	L/MIN	PSI	BAR
40325-21/32	21/32	16.67	3.0	11.4	6.0	22.7	9.0	34.1	12.0	45.4	14.0	53.0	40	2,8
35325-3/4	3/4	19.05	3.8	14.4	7.7	29.1	11.5	43.5	15.5	58.7	17.0	64.4	35	2,415
24325-07	7/8	22.22	6	22	11	43	17	65	23	86	25	95	24	1,656
20325-10	1	25.4	7	26	14	52	21	78	27	103	30	114	20	1,38
15325-11	1-1/8	28.58	9	34	18	69	27	103	36	138	40	151	15	1,035
12325-12	1-1/4	31.75	11	43	23	86	34	129	46	172	50	189	12	828
10325-13	1-3/8	34.92	14	52	27	103	41	155	55	207	60	227	10	690
8325-14	1-1/2	38.1	16	60	32	119	47	179	63	239	69	261	8	552