The ZA petrochemical process pump is a single-stage single suction cantilever volute pump, which complies with the standards API610 and VDMA24297 (light/medium). The pump body is foot supported, with a single suction impeller, axial suction, and radial discharge. Axial force is balanced hydraulically using front and rear mouth rings and balance holes. The shaft seal can be a mechanical seal, which can be a single end or double end balanced container type, or a packing seal can be used. Mechanical seals are equipped with cooling, flushing, or sealing fluid systems, and the sealed piping system is designed according to API specifications. The suction and discharge flanges can be designed according to GB, DIN, and ANSI standards. FEATURES The ZA type petrochemical process pump has a single-stage single suction cantilever rear opening structure, so there is no need to disassemble the suction and discharge pipelines when repairing the pump. After removing the pump cover, the suspension and rotor components can be extracted from the pump body together, making maintenance work very convenient. There is a sealing ring on the rear cover plate of the impeller, which can basically balance the axial force, and the residual unbalanced force is borne by the thrust bearing. The bearing is a ball bearing lubricated with oil, and the oil ring lifts the oil and can automatically control the oil level. When the working temperature is below 250 ℃, the suspension does not need to be cooled. When the working temperature is above 250 ℃~450 ℃, the suspension is air-cooled or water-cooled. According to different situations, some pumps have a double volute structure, while others have a single volute structure. The shaft seal can be sealed with packing or with a single or double end mechanical seal, and is equipped with a cooling, flushing, or sealing fluid system.
The ZA series chemical process pump fully complies with the API610 (American Petroleum Institute Centrifugal Pump Specification) standard, with high efficiency and good anti cavitation performance. After adding an inducer, the NPSHr can be reduced by 1 meter compared to similar pumps, which can meet the requirements of industrial processes, chemical industry, petrochemicals, hydrocarbon processing, various water treatment and pressurization processes. It has good reliability, availability and ease of maintenance. The ZA series pump body is foot supported and can withstand external loads directly transmitted to the foundation. The bearing lubrication method is thin oil lubrication, controlled by a constant position oil cup, which fully ensures that the bearing works in a good lubrication state and has a good service life. The impeller is designed in a closed manner, and thrust balance and dynamic balance are carried out according to the requirements of small thrust balance load. The axial force is balanced by the balance hole, and the residual axial force is balanced by the centripetal thrust ball bearing. According to the usage of the medium, various flushing and cooling methods of PLAN mechanical seals are adopted to effectively prevent damage to the sealing surface caused by the vaporization of the medium near the critical vaporization temperature in the sealing chamber. The bearings are selected as radial thrust ball bearings, cylindrical roller bearings, and angular contact ball bearings, respectively equipped with light and heavy shafts to meet the needs of different loads. More than 60 models of ZA series pumps only require 8 types of bearing frames, with strong universality, high standardization, compact and reasonable structure, and good appearance quality. The coupling is a detachable diaphragm belt forged flexible coupling, which does not require disassembly of pipelines and motors during maintenance. The bearing frame, shaft, sealing box, impeller components, etc. can be freely disassembled. The material of the pump's overcurrent section includes various materials such as 304, 304L, 316L, CD4MCu, 904L, Hastelloy, titanium alloy, etc. The shaft is made of materials such as 3Cr13, 40Cr, 24CrMoV, etc. It has strong rigidity and is processed after solution treatment, with good high and low temperature resistance. The inlet flange of the pump is horizontally sucked in, and the outlet flange is vertically upward. From the motor end, the pump shaft rotates clockwise. Performance range The flow rate Q can reach 2600m3/h;
The head H can reach 250m;
The working pressure P can reach 2.5MPa;
Working temperature T-80 ℃~+450 ℃;
Caliber ranging from 25 to 400mm;
Speed: 1450-2900r/min;
The material of the pump overcurrent components is stainless steel: 304, 304L, 316, 316L, CD-4MCu, 904, 904L, Hastelloy, etc. Model Meaning For example: ZA50-315
ZA - Petrochemical Process Pump
50- Pump outlet diameter 50 (mm)
315- nominal diameter of impeller 315 (mm) application ZA type petrochemical process pumps are suitable for transporting clean or low particle, low-temperature or high-temperature liquids; Suitable for transporting neutral or corrosive liquids, including alkaline solutions such as sodium hydroxide and sodium carbonate at various temperatures and concentrations, various salt solutions, various acid and salt solutions, various liquid petrochemical products, organic compounds, and other corrosive raw materials and products. ZA type petrochemical process pumps are mainly used in refineries, petrochemical industry, coal processing industry, low-temperature engineering, paper industry, sugar industry, and seawater desalination projects. performance parameter

model	Traffic Q		Head H （m）	rotational speed （r/min）	shaft power	Motor Power	efficiency （%）	Required cavitation allowance （NPSH）	impeller diameter （mm）
	m3/h	L/s			kw
ZA25-200	11.5	3.2	49	2950	3.8	5.5	42	1.6	209
	5.8	1.6	12	1475	0.55	1.1	38	1.2	209
ZA40-160	28	7.8	33	2950	3	5.5	62	3	169
	14	3.9	8	1475	0.53	1.1	59	0.8	169
ZA40-200	29	8.2	53	2950	7.5	11	58	2.2	209
	14.5	4.1	13	1475	1.1	1.5	55	0.8	209
ZA40-250	32	8.9	78	2950	13.5	18.5	53	2.2	259
	16	4.5	19.5	1475	1.8	3	43.5	0.75	259
ZA40-315	42	11.5	115	2950	30	37	46	1.25	324
	21	5.8	29	1475	4.5	5.5	42	0.50	324
ZA50-160	50	14	34	2950	7.0	11	71	2.40	169
	25	7	8.4	1475	0.87	1.5	69	0.75	169
ZA50-200	62	17	52	2950	13.5	18.5	68	2.6	209
	31	8.5	13	1475	1.7	3	65.5	0.75	209
ZA50-250	70	19.4	82	2950	24	30	65	2.4	259
	35	9.7	20	1475	3.2	4	62.5	0.7	259
ZA50-315	87	24.4	115	2950	50	55	56	2.2	324
	44	12.2	28	1475	6.5	11	53	0.5	324
ZA50-400	82	23.6	194	2950	92	110	48	2.0	409
	41	11.8	48	1475	12.7	15	45	0.5	409
ZA80-160	94	26.5	32	2950	11	15	78	3	169
	47	13.3	8	1475	1.5	2.2	72	1.4	169
ZA80-200	103	28.5	54	2950	20	30	76	3.2	209
	51	14.6	13.5	1475	2.5	4	74	0.8	209
ZA80-250	127	35	82	2950	35	45	74	4	259
	64	17.5	20	1475	5.4	7.5	72	1.3	259
ZA80-315	141	39	127	2950	76	90	69	4	324
	70	19.5	33	1475	10	15	66.5	1	324
ZA80-400	171	47.5	187	2950	142	160	61	3.5	409
	85	23.8	46	1475	19	22	58	0.8	409
ZA100-160	162	44.2	29	2950	16.5	22	81	5	169
	81	22.1	7.2	1475	2.2	3	79.5	1.4	169
ZA100-200	193	53.1	50	2950	35	45	81	3.5	209
	95	26.5	12.5	1475	3.5	5.5	79.5	1	209
ZA100-250	230	65	79	2950	62	75	81	4	259
	115	32.5	20	1475	8	11	79.5	1	259
ZA100-315	250	70	126	2950	120	132	75	3.6	324
	125	35	31.0	1475	15	18.5	73	1	324
ZA100-400	300	83	194	2950	225	-	72	5.5	409
	150	41.5	48	1475	27	37	70	1.4	409
ZA100-500	180	50.5	75	1475	50	75	70	1.5	514
ZA150-200	320	88	44	2950	45	55	83.5	6	209
	160	44	11	1475	6	7.5	82	1.7	209
ZA150-250	390	108	74	2950	92	110	82	5.1	259
	195	54	18.5	1475	12.5	15	80.5	1.7	259
ZA150-315	442	123	125	2950	200		87.5	6	324
	220	61.5	32.5	1475	26	30	81	1.7	324
ZA150-400	260	72	51	1475	47	55	77	1.8	409
ZA150-500	300	84	77	1475	87	110	74	2	514
ZA150-560	335	91	104	1475	132	160	74.5	2.4	578
ZA150-630	360	99	115	1475	192	-	63	8	648
ZA200-250	610	170	72	2950	140	160	84.5	9	259
	305	85	17.5	1450	18	22	83.5	2.2	259
ZA200-315	350	98	30	1450	35	45	84.5	2	324
ZA200-400	426	118	50	1450	73	90	90	3.2	409
ZA200-500	495	137	84	1450	150	-	81	2.8	514
ZA200-560	540	154	105	1450	208	-	79.5	3	578
ZA200-630	580	160	132	1450	270	-	77.5	3.2	648
ZA250-315	545	155	27	1450	48	55	86.5	2.7	324
ZA250-400	660	182	49	1475	107	182	82.5	3.2	409
ZA250-500	800	230	82	1475	220	-	83	5	514
ZA250-560	860	240	106	1475	300	-	82	4.1	578
ZA250-630	855	238	128	1475	350	-	80.5	4.6	648
ZA300-400	1050	290	48	1475	160	-	87	6	409
ZA300-500	1240	336	78	1475	320	-	88	4.7	514
ZA300-560	1340	374	104	1475	455	-	87	5.2	578
ZA300-630	1450	405	132	1475	595	-	85	5.5	648
ZA400-500	1870	515	74	1475	450	-	88	6	514
ZA400-560	2040	570	98	1475	610	-	88	7.6	578
ZA400-630	2390	670	125	1475	950	-	88	8.0	648