I. Product Overview:
ZWL type direct-coupled self-priming non-clogging sewage pump is a novel structure developed on the basis of repeated research on similar technologies at home and abroad. The pump integrates self-priming and non-blocking sewage discharge, adopts axial recirculation and external mixing, and through the unique design of the pump body and impeller flow passage, it can be installed like a general self-priming pump without installing a bottom valve and irrigation water. It can also absorb and contain large particle solids and long fiber impurity liquids, and can be widely used in municipal sewage engineering, river pond culture, light industry, papermaking, textile, food, chemical, electric industry, fiber, slurry and hybrid suspension. The ideal impurity pump.

The pump adopts direct-connected structure, compared with domestic similar products, it has the characteristics of simple and compact structure, less vibration, good self-priming performance, strong sewage discharge capacity, high efficiency and energy saving, convenient use and maintenance, etc. The first in China. The technical performance indicators are leading domestically, reaching the international advanced level, with broad application market and development prospects.  

Second, product features:
1, the ambient humidity of 50 ° C, the medium temperature of 80 ° C special requirements up to 200 ° C.  
2. The medium PH value is 6-9 for cast iron and 2-13 for stainless steel.
3. The medium weight does not exceed 1240 kg/m3.
4. The self-priming height should not exceed the specified value of 4.5-5.5 meters, and the length of the suction pipe is 10 meters.
5. The capacity of the suspended particles is 60% of the pump diameter, and the fiber length is 5 times of the pump diameter.

Three, technical parameters:
Flow rate: 8~800m3/h;
Head: 15-80m;

Performance parameters

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???????????? Model ????????????	???????????? Traffic ????????????(m3/h) ????????????	???????????? Head ????????????(m) ????????????	???????????? Power ????????????(kw) ????????????	???????????? Speed ????????????(r/min) ????????????	???????????? Efficiency ????????????(%) ????????????	???????????? The NPSH ????????????(m) ????????????	???????????? Self-suction height ????????????(m) ????????????	???????????? Self-priming time ????????????(min/m) ????????????	???????????? weight (kg) ????????????
???????????? ZWL25-8-15 ????????????	8	15	1.5	2900	45	2.0	5.0	3	68
ZWL32-9-30	9	30	3	2900	48	2.5	5.0	3	68
ZWL40-10-20	10	20	2.2	2900	45	2.5	5.0	3	95
ZWL40-20-15	20	15	2.2	2900	45	2.5	5.0	3	68
ZWL40-15-30	15	30	3	2900	48	2.5	5.0	3	68
ZWL50-10-20	10	20	2.2	2900	45	2.5	5.0	3	68
ZWL50-20-15	20	15	2.2	2900	45	2.5	5.0	3	68
ZWL50-15-30	15	30	3	2900	48	2.5	5.0	3	95
ZWL50-20-35	20	35	5.5	2900	48	2.5	5.5	3	140
ZWL50-20-40	20	40	7.5	2900	48	2.5	5.5	3	150
ZWL65-30-18	30	18	4	2900	45	2.5	5.0	3	125
ZWL65-25-30	25	30	5.5	2900	50	3.0	5.0	3	135
ZWL65-25-40	25	40	7.5	2900	50	3.0	5.5	2	140
ZWL65-40-25	40	25	7.5	2900	50	3.0	5.0	3	150
ZWL65-65-25	65	25	11	2900	52	3.0	5.0	3	200
ZWL80-40-16	40	16	4	2900	50	3.0	5.0	3	125
ZWL80-40-25	40	25	7.5	2900	50	3.0	5.0	3	140
ZWL80-25-40	25	40	7.5	2900	50	3.0	5.5	2	150
ZWL80-65-25	65	25	11	2900	52	3.0	5.0	3	220
ZWL80-80-35	80	35	15	2900	45	3.0	5.5	3	250
ZWL80-50-60	50	60	22	2900	55	3.0	5.5	3	300
ZWL100-100-15	100	15	7.5	1450	50	4.0	5.0	3	230
ZWL100-80-20	80	20	7.5	1450	53	4.0	5.0	3	230
ZWL100-100-20	100	20	11	1450	53	4.0	5.0	3	270
ZWL100-100-30	100	30	22	1450	53	4.0	5.0	2	320
ZWL100-80-45	80	45	30	2900	53	4.0	5.5	2	380
ZWL100-80-60	80	60	37	2900	53	4.0	5.5	2	430
ZWL100-80-80	80	80	45	2900	53	4.0	5.5	2	480
ZWL125-120-20	120	20	15	1450	55	4.5	5.0	2	380
ZWL150-200-15	200	15	15	1450	60	5.0	5.0	3.5	380
ZWL150-200-20	200	20	22	1450	60	5.0	5.0	3	420
ZWL150-200-25	200	25	30	1450	60	5.0	5.0	3	520
ZWL150-180-30	180	30	37	1450	65	5.0	5.0	3	580
ZWL150-180-38	180	38	55	1450	45	5.0	5.0	3.5	700
ZWL200-280-14	280	14	22	1450	65	5.0	5.0	3	600
ZWL200-300-18	300	18	37	1450	65	5.0	5.0	3	680
ZWL200-280-28	280	28	55	1450	55	4.8	5.2	3	820
ZWL250-420-20	420	20	55	1450	61	6.0	4.5	2.5	1020
ZWL300-800-14	800	14	55	1450	65	6.0	4.5	2.5	1200

Corrosion resistance of the main material of the pump (for reference)

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Media	concentration ????????????(%)	Polypropylene		concentration ????????????(%)	A B C
		25°C	50°C		20°C	60°C
Sulfuric acid	60	√		<30	√	Χ
Nitrate	25	√		20	√	Ο
Hydrochloric acid	<36	√		<38	√	√
Hydroxyfluoric acid	35	√		40	√	Χ
Acetate	<80	√		<20	√	Ο
Sodium hydroxide	100	√			√	√
potassium dichromate	25	√			√	√
Stinky water		Χ			Ο	Χ
Ethanol		√		<50	√	√
Acetone		√		10	Ο
Tetrachloroethane		Ο			Ο	Χ
Freon 22		√			Ο	Ο
bleaching solution	CL13%	√		CL12.5%	Ο	Ο
Plating solution		√			Ο	Χ
Photographic fluid		√			√	√

 

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Media	concentration ????????????(%)	Stainless steel		concentration ????????????(%)	Ceramic
		25°C	50°C		25°C	50°C
Sulfuric acid	<5	√	Χ		△	△
Nitrate	70	△	√		△	△
Hydrochloric acid		Χ			△	△
Hydroxyfluoric acid		Χ		0~100	Χ
Acetate	<20	√	√		△	△
Sodium hydroxide	70	√	√		Ο	Χ
potassium dichromate	40~60	△	△	10~20	△	△
Stinky water		Ο			△	△
Ethanol		△	√		△	△
Acetone		△	△		△
Tetrachloroethane	50	△	△		△	△
Freon 22		△			△	△
bleaching solution	CL12%	Χ			△	△
plating solution					△	△
Photographic fluid		△			△	△

Note: △ is excellent; √ is good; Ο is available, but has obvious corrosion; Χ severe corrosion, not applicable.


Physical and mechanical properties of PVDF

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Performance	unit	Press
density	g/cm3	1.75-1.79
比度	cm3/g	0.56-0.75
melting point range	0c	155-170
refractive index	n25D	1.42
Molding shrinkage rate	%	2-3
Stretching strong hair (yield)	Mpa	28-41
Stretching strong hair (breaking)	Mpa	31-52
Elongation (fracture)	%	100-400
Impact strength (no gap)	KJ/m	107-214
compressive strength	Mpa	55-69
hardness (Shore D)		70-80
Abrasion	mg/1000r	7.0-9.0
Limited Oxygen Index (l0 I)	%	44
burning rate		V-D
resistivity	u194	1.0x10 15
Dielectric number	10 31 CYCles	9.7

Polyvinylidene fluoride (PVDF) chemical resistance

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Chemical Medium	concentration ????????????(%)	Maximum operating temperature °C	Chemical Medium	concentration ????????????(%)	Maximum operating temperature °C	Chemical Medium	concentration ????????????(%)	Maximum operating temperature °C
hydrochloric acid	36	135	Hydrogen Hydroxide	<10	85	ethanol		135
sulfuric acid	<60	120	Hydrogen Hydroxide	50	50	etherether		50
sulfuric acid	80-93	95	Carbon ammonium oxide		110	Formaldehyde	37	50
sulfuric acid	90	65	Carbon calcium oxide		135	Acetone	10% aqueous solution	50
Nitrate	<50	50	carbonate	aqueous solution	135	肼	aqueous solution	95
phosphoric acid	<85	135	Sodium bicarbonate	aqueous solution	120	benzene		75
phosphoric acid	85	110	Ammonia water		110	aniline		50
acetic acid	10	110	saline		135	toluene		85
acetic acid	80	80	Sodium hydrogen phosphate	aqueous solution	120	phenol		50
acetic acid	100	50	calcium phosphate	aqueous solution	135	chlorobenzene		135
trichloroacetic acid	<10	95	calcium oxide	aqueous solution	135	naphthalene		95
trichloroacetic acid	50	50	potassium oxide	aqueous solution	135	chloromethane		135
oxalic acid		50	Ammonium Oxide	aqueous solution	135	chloroform		50
benzenesulfonic acid	aqueous solution	50	ferric oxide	aqueous solution	135	CTC		135
hydrofluoric acid	40-100	95	ferrous ferrous sulfate	aqueous solution	135	chloroethane		135
hydrofluoric acid	40	120	ammonium sulfate	aqueous solution	135	1.2 trichloroethane		135
hydrobromic acid	50	130	ammonium sulfate	aqueous solution	135	1.1.2 trichloroethane		65
Peroxyacid	10	95	Sodium nitrate	aqueous solution	135	tetrachloroethane		120
Peroxyacid	70	50	ammonium phosphate	aqueous solution	135	vinyl chloride		95
Nanochloric acid	6-15	95	urea	aqueous solution	120	Trichloroethylene		135
potassium chlorate		100	CO2		80	Dichloroethylene		110
chromic acid	<40	80	chlorine dioxide		75	natural gas		135
chromic acid	50	50	chlorine dioxide		65	fuel oil		135
High potassium sulphate		120	chlorine	element	95	Paraffin oil		120
hydrogen peroxide	<30	95	bromine	element	65
Sodium peroxide		95	Iodine	element	65

Fluorine and corrosion performance table (for reference only)

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		temperature, °C
media	concentration%	25	200	media	concentration%	Temperature, 200 °C
sulfuric acid	0-100	√	√	formic acid		√	√	√
fuming sulfuric acid		√	√	acetic acid (acetic acid)	0-ice	√	√	√
Nitrate	0-100	√	√	acetic acid		√	√	√
fuming sulfuric acid		√	√	propionic acid		√	√
hydrochloric acid		√	√	acrylic		√
phosphoric acid		√	√	acrylic anhydride		√	√	√(boiling point)
hydrofluoric acid		√	√	methacrylic acid		√	√	√(boiling point)
hydrobromic acid		√	√	butyric acid		√	√	√
Hydrioiodic acid		√	√	辛酸		√	√	√
hydrocyanic acid		√	√	lauric acid		√	√	√
nitrous acid		√	√	palmitic acid		√	√	√
nitrous acid		√	√	stearic acid		√	√	√
chloric acid		√	√	oleic acid		√	√	√
hypochlorous acid		√	√	linoleic acid		√	√	√
Perchloric acid		√	√	rosin acid		√	√	√
tetraphosphoric acid		√	√	fatty acid		√	√
carbonated		√	√	chloroacetic acid		√	√	√
chromic acid		√	√	lactic acid		√	√	√
silicic acid		√	√	oxalic acid (oxalic acid)		√	√	√
boric acid		√	√	fumaric acid		√	√	√
arsenic acid		√	√	citric acid		√	√	√
selenic acid		√	√	nicotinic acid		√	√	√
fluorosilicic acid		√	√
Fluoroborate		√	√
chlorosulfonate		√	√
王水		√	√
mixed acid		√	√

 

???? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ????

media	concentration%	temperature, 200 °C
Sodium hydroxide		√
potassium hydroxide		√
ammonium hydroxide		√
Magnesium hydroxide		√
calcium hydroxide		√
Aluminum Hydroxide		√
Barium hydroxide		√
iron hydroxide		√
ferrous hydroxide		√
nickel salt		√
nickel sulfate		√
Nitrate nitrate		√
nickel chloride		√
Zinc salt		√
Zinc sulfate		√
Zinc nitrate		√
Zinc chloride		√