Vertical Chemical Centrifugal Pump

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SFY series vertical chemical centrifugal pump

SFY series liquid pump is a vertical single-stage single-suction pump, used for conveying solid particles and not easy to crystallize the corrosive liquid. The temperature of the transported medium is -20 degrees Celsius -150 degrees Celsius. Special needs can be -50 ℃-150 ℃. The pump has the characteristics of small footprint, reliable use, convenient maintenance, and strong corrosion resistance. At the same time, it cancels the mechanical seal commonly used in other submerged pumps, and selects a unique structure of the impeller, so that the pump has no leakage and long life. It is widely used in petroleum, chemical, pharmaceutical, papermaking, metallurgy, sewage treatment and other industries.

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Description
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Product overview

The pump is a vertical submersible pump with beautiful appearance and is directly installed on the storage of the medium to be transported, without additional floor space, thus reducing infrastructure investment.

Cancel the mechanical seal, solve the other liquid pump because the mechanical seal is easy to wear and must often repair trouble, save the operation cost of the pump, improve the work efficiency.

The unique centrifugal double balance impeller is used for conveying clean media such as non-solid particles, with low vibration noise and high efficiency. The open double balance impeller is used for conveying liquid with non-clean solid particles and short fibers, and the operation is stable and non-clogging.

Working conditions

Suction caliber: 25-100mm

Flow range: 3.6-100.8 m/h

Head range: 12-41m

Material: stainless steel SS304,SS316;

Duplex Stainless Steel Standard: ISO,CE

Working temperature:-20 ℃ ~ 200 ℃

Voltage: 220V/380V/415V/460V or customer requirements

Medium: using a unique centrifugal impeller, for the transport does not contain solid particles and other clean media, low vibration noise, high efficiency; using open impeller, for the transport of not clean with solid particles and short fiber liquid.

Warranty: pump warranty for one year, except for over-current parts

Application: Widely used in petroleum, chemical, pharmaceutical, papermaking, metallurgy and other industries

Model meaning

Product Structure

The submerged pump is mainly composed of pump body, pump cover, impeller, shaft, elastic coupling, pipe flange, guide bearing, intermediate connecting pipe, liquid discharge pipe, bearing frame, base plate, motor frame and other parts.
The suction inlet of the pump is along the axis direction, and the outlet is parallel to the axis.
The pump turns clockwise from the suction inlet to the motor end.
The vertical motor of the pump is fixed on the motor seat by bolts, and directly drives with the pump through an elastic coupling. The pump body, the intermediate connecting pipe, the pump frame, the liquid discharge pipe and the pipe flange are connected by bolts and fixed on the bottom plate. The whole pump is installed on the container through the bottom plate. Other main parts of the pump, such as motor base, pump frame and chassis, except for liquid contact parts, are made of cast iron.
The axial force and radial force of the pump (including the water pressure generated during the operation of the pump, the weight of the impeller and the rotor, etc.) are borne by the one-way thrust ball bearings, single-row radial ball bearings and sliding guide shafts installed in the bearing box. In order to ensure the safe and normal operation of the pump, the bearings are lubricated with butter, and the liquid conveyed by the guide bearings is lubricated. Therefore, the liquid level must be higher than the center line of the impeller when working.
The pump adopts soft packing seal as the basic sealing form and uses butter at the packing ring to ensure the normal operation of the packing and prolong the service life. Appropriate amount of molybdenum disulfide should be added to the butter.
In addition, the corrosion-resistant centrifugal pump series under liquid is divided into the structure of the intermediate guide bearing and the structure without the intermediate guide bearing due to the different length of the length L extending into the container.

Main Performance Parameters

Main spare parts

Shaft sleeve

Model	D	d	d₁	L	L₁	L₂	H
25-50	38f7	28H7	22H7	50	5	687	24.8^-0.2
65-100	45f7	35H7	28H7	55	5	8S7	31.5^-0.2

Lower protective sleeve

Model	D	D₁	d₁	L	L₁	R	Material
25-50	74	50h5	38E7	40	45	3	Teflon SFL-4
65-100	100	60h5	45E7	40	45	4	Teflon SFL-4

25-100 Mounting dimensions

Installation dimension of outlet pipe threaded flange

Model Code	25	40	50	65	80	100
Dg	25	32	40	50	65	80
D	90	120	130	140	160	185
D₁	65	90	100	110	130	150
N-φd	4-12	4-14	4-14	4-14	4-14	4-18

Note: The user does not have the requirement of matching wire flange. Generally, it is equipped with GB3289.2-82 elbow or GB3289.29-82 wire outer joint, and its diameter Dg is the same.

Pump model	L	L₂	A	A1	small dish				Large Plate
Pump model	L	L₂	A	A1	D	D₁	L₁	N-φd	D	D₁	L₁	N-φd
25-50	500-2000>2000 customization	50	120	32	305	275	20	4-φ13	535	495	25	8-φ18
65-100	1000-2000>2000 customization	65	210	60	535	495	25	8-φ18	700	650	30	8-φ18

Outlet flange size

Model	DN	D	D1	d	b	f	n-d1	Model	DN	D	D1	d	b	f	n-d1
25-20	20	105	75	50	23	8	4-φ14	100-20	80	200	160	120	25	10	8-φ18
25-32								100-32
25-50								100-50	65	185	145	110	25	10	4-φ18
25-80								100-80
40-20	25	115	85	50	23	8	4-φ14	125-12.5	100	220	180	140	27	12	8-φ18
40-32								125-20
40-50								125-32
40-80								125-50
50-20	32	140	100	75	25	10	4-φ18	150-20	125	250	210	165	32	12	6-φ18
50-32								150-32
50-50								150-50
50-80								200-20	150	285	240	205	32	12	8-φ18
65-20	50	165	125	92	23	10	4-φ18	200-32
65-32								200-50
65-50	40	150	110	82	25	10	4-φ18	250-12	200	320	280	240	32	12	8-φ18
65-80								250-22
80-20	65	185	145	110	25	10	4-φ18	250-50
80-32								300-22	245	425	370	300	37	12	12-φ26
80-50	50	165	125	92	23	10	4-φ18	300-45	300	485	430	350	39	12	12-φ26
80-80								300-40

Industry Applications

Suitable for oil and other industries

Suitable for chemical and other industries

Suitable for pharmaceutical and other industries

Suitable for papermaking and other industries

Suitable for metallurgy and other industries

Suitable for sewage treatment and other industries

Our products are widely used in metallurgy, mining, electric power, coal, petroleum, chemical, environmental protection, building materials, municipal and other industries, long-term service in the domestic well-known high-end customer base, including: china Huadian, China Datang Group, Datang International, China Huaneng, China SDIC, China Guodian, Hebei Iron and Steel Group, Shandong Iron and Steel Group Rizhao Iron and Steel, Kunming Iron and Steel, Baotou Iron and Steel, Benxi Iron and Steel Group, Tianjin Iron and Steel Group, Jiuquan Iron and Steel, Kunming Iron and Steel, Handan Iron and Steel, Hebei Xuangang, Anyang Iron and Steel, Tangshan Iron and Steel Group, Donghai Iron and Steel Group, Yanshan Iron and Steel, etc.