Tankless Instant Wall Mounted Water Heater JW-QS7

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 100 Pieces pc

Supply Capability:: 30000 Pieces per Month pc/month

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Detailed Product Description

1/ quality steel used for housing & case.

2/ copper heat exchanger

3/ with various safety device

Features:

Model: JW-QS7 Series

* quality steel used for housing & case.

* environment-friendly coating finish if any.

* pure copper heat exchanger

* sealed burner box for high heat efficiency

* low or zero water pressure start-up

* with various safety device

* various coating color for panel optional

Specification:

Model	JW-QS7-12	JW-QS7-16	JW-QS7-20	JW-QS7-24	JW-QS7-32	JW-QS7-40
Capacity (L)	6	8	10	12	16	20
Exhaust type	forced exhaust	forced exhaust	forced exhaust	forced exhaust	forced exhaust	forced exhaust
Burner type	3 line harmonica	4 line harmonica	13 line T-shape	15 line T-shape	16 line T-shape	18 line T-shape
Ignition	automatic	automatic	automatic	automatic	automatic	automatic
Applicable water pressure (MPa)	0.02~0.8	0.02~0.8	0.02~0.8	0.02~0.8	0.02~0.8	0.02~0.8
Gas type	LPG(Liquefied Petroleum Gas) / NG(Natural gas)
Gas pressure	LPG: 2800Pa NG: 1274Pa & 2000Pa
Product size (mm)	440x290x120	520x320x140	590x330x140	620x330x180	650x420x180	700x420x180
Packing size (mm)	560x360x180	640x375x200	710x400x200	750x390x240	770x480x240	820x480x240
N.W. / G.W. (kg)	4/5	7/8	9/10.5	9.5/11	13.5/15.5	18/20

Our advantage:

1/ make products in factory ourselves.

2/ strong manufacturing capacity for OEM service.

3/ flexible production for tailor-made service to client.

Q:If a pair of conjugate gears have different coefficients, can the hob be used in general? The addendum of the tooth is required: If the basic parameters of the gear are the same (m * ha * C *), and the tip of the tooth has no trimming, the hob can be used in general. When the addendum of the gear tooth is required, it should be analyzed. If the coefficient of variation between the two coefficients is not large, and the margin of repair is not very strict, there is a general possibility. If the X difference is large, it can not be universal, there will be the top of the tooth repair margin is too small phenomenon. Even when x=0 is rolling with the same knife, the average number of rolls is less, and the gears are smaller at the time of repair, while the number of teeth rolled seems larger.

Q:Hello everyone！ I would like to ask about the difference between variable displacement hob and non variable hob First of all, is there any difference between the non - variable and modified gears in the design of hobs? If it's different, please give me more details, thank you!: If it is an ordinary standard hob, but also really did not hear the gear hob, nor is it, today I am the first time I heard the name of gear hob change. Of course, if you are grinding hob, repair edge hob, etc., or have customized hob. These non universal hobs, trimming and scraping allowance. The amount of grinding and so on, need to be customized in accordance with the corresponding data. Because these quantities are different

Q:When machining M3 worm gear on Y3150 hobbing machine, how to determine the rotation angle and direction of hob cutter head?: Wenling Kaiyuan tool factory to solve; processing turbine is not to turn the angle and direction

Q:Gleason hob material marked as: G30 what material?: Gleason mark tool materials are: REX45, REX54 general REX76, G30, G50 but the same tool, G30 tool label tagging REX54 price than the price is much lower, and the M35 tool almost, so I suspect that this material is M35

Q:What is the "hob" knife?: Hob cutting methodOn the left hand material rolling; right hand cut down with the raw material, the cutting knife rotating a cut, to master a certain inclination, cut into the water block, comb back block or hob block shape. Applicable to the quality of crisp food raw materials, such as carrots, potatoes, cucumber and so on.

Q:How about the front edge, the normal and the normal tooth shape of the hob with rake angle?: Generally speaking, the front rake or the negative rake of the hob, the slot is straight. If the spiral groove hob, then the front face of the eccentric distance can not be controlled, the front and left side of the tooth shape can not be measured using the front face of the intuitive measurement method, there will be no knife surface measurement method is inevitable. If you really need, you can use the following formula Tan = w (Tan an*cos af+-sin AF *sin WF /cos WF) this formula can be converted into the reference tooth angle parameters of front blade tooth angle formula in meaning, can I see the previously available analytical formula

Q:How to judge the direction of hob rotation?: Wait a minute. When the ball is over, call again, just to see where the ball is going.

Q:Hobbing machine hob installation angle is wrong, what will happen?Go to work in the middle of the hob stopped, and then use the manual to hob vertical movement, and then start the workpiece and why card and the card hob is bad? And the consequences?: For the share, I'll tell you. The angle is shifted, the hob's pitch is wrong. The back angle is also easy to take off.. If you move back, you'll certainly get stuck. With hob is also a certain relationship. Wenling Kaiyuan tool factory this kind of strength brand hob generally won't card bad. Don't forget to give me a bonus!!!!

Q:How to adjust the clearance between the upper and lower blades of the slitting machine?: Method for adjusting installation clearance between upper and lower rolling blades of slitting machine:The clearance between the upper and lower blades of the slitting machine is usually adjusted by precision shims. But be careful, if the blade concentricity or balance is not good, then you have to sharpen the knife again.Slitting machine and slitting line, slitting machine, slitting machine, is a kind of metal cutting equipment. 1. uses: suitable for longitudinal shearing of metal strip, and winding the slitting strip into coils. 2. advantages: easy to operate, high cutting quality, high utilization of materials, cutting speed, stepless speed regulation and so on. 3. structure: from uncoiling (unwinding), material positioning, slitting, slitting, coiling (winding) and so on. 4. applicable materials: tinplate, silicon steel sheet, aluminum strip, copper, stainless steel plate, galvanized sheet, etc.. 5. applicable industries: transformers, motors, household appliances, automobiles, building materials, packaging industry, etc..

Q:Experts, EG, how much is the hobbing hob used in the actual production of engagement? Feed rate? What is the effect of spindle speed, machining accuracy? What is the M2 M2.5 M3 M3.5 M4 M5 / M6 M7 M8 M9 M10 engagement, the lathe is Chongqing 3180 thank you teachers, generous with your criticism: When hobbing, the feed amount is related to the precision of the gear. In order to achieve high precision, the scoring is coarse, fine, rolling and cutting. Generally speaking, within two 5mm modulus, the gears with seven to eight orders can be made according to the requirements of the drawing. In the market economy, if it is a one-sided pursuit of efficiency and quality can be relaxed if I have seen 8mm modulus gear knife into place, cutting tool and machine tool (Y3180A hobbing machine) can not stand, can the boss agree that it must be so. This kind of dry work check, do not check, you can certainly say that the quality of substandard, diameter jump failure, the roughness of the surface roughness, tooth shape and tooth direction, not to mention unqualified. But the boss is proud that the product can be sold at a low price, in short supply. At the technical level, I could only accept such a process, so I resigned.

With many years' experience in this field, we set up independent R & D center, testing centers, quality control centers inside factory ourselves. We carry out ISO9001 system in the company, all staffs constantly follow advanced managing & strict quality control process, quality-oriented is a constant guidance for our work here. We organize an experienced team in sales department, to ensure customers a prompt & efficient response, we are at customer's service anytime.

1. Manufacturer Overview
Location	Guangdong,China
Year Established	2008
Annual Output Value
Main Markets	South America Eastern Europe Mid East Eastern Asia South Asia
Company Certifications	ISO 9001:2000

2. Manufacturer Certificates
a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability
a)Trade Capacity
Nearest Port	Shunde
Export Percentage
No.of Employees in Trade Department	3-5 People
Language Spoken:	English, Chinese
b)Factory Information
Factory Size:	1,000-3,000 square meters
No. of Production Lines	5
Contract Manufacturing	OEM Service Offered
Product Price Range