High quality 300X slow closing check valve

High quality 300X slow closing check valve the wals 300X slow closing check valve produced by Nanjing wals fluid control equipment Co
, Ltd
has been comprehensively tested by the National Quality Supervision Organization for performance indicators, and has been recognized by the quality supervision organization
It has successively won the title of Jiangsu famous brand product, Nanjing high quality product, national quality inspection certification, national pressure pipeline component safety registration certification, and iso9001:2013 quality management system certification

Product details of slow closing check valve
300X slow closing check valve is a hydraulic control connecting pipe system composed of main valve, one-way valve, needle valve, ball valve, micro filter and pressure gauge
Using hydraulic automatic operation, the main valve can get the best opening or closing speed
Prevent the occurrence of water hammer to achieve the effect of slow closing and silencing
Using hydraulic self-control, no other devices and energy are required, the maintenance is simple, and the opening and slow closing are stable
The products are widely used in high-rise buildings, living quarters and other water supply pipe network systems and urban water supply projects

When the valve supplies water from the inlet end, the water enters the main valve control room through the micro filter, needle valve and one-way valve, and then drains to the downstream through the ball valve
Because the opening of the needle valve is less than that of the ball valve, that is, the drainage speed of the main valve control room is greater than the water inlet speed, so the pressure in the control room decreases, and the inlet pressure acting on the lower end of the main valve disc opens the main valve to supply water to the downstream

  When the water supply is stopped, if the downstream water begins to return, part of the return water enters the main control room through the ball valve
Due to the action of the one-way valve, the return water cannot flow out of the main control room, causing the main control room to gradually increase the pressure and slowly close the main valve

Main technical parameters
Nominal pressure (MPA)   Shell test pressure (MPA)   Sealing test pressure (MPA)   Applicable media   Medium temperature (℃)
1
0  1
5  1
1  Water   0-80
1
6  2
4  1
76 
2
5  3
75  2
75 
Material of main parts
Part name   Part material
Body bonnet   WCB
Seat disc   copper alloy
Sealing ring O-ring   Nitrile rubber
Valve stem   2Cr13
Spring   50CrVA
Needle valve   copper alloy
Ball valve   copper alloy
Check valve   copper alloy
Micro filter   stainless steel
Connection size (PN 1
0-2
5mpa)
Nominal diameter dn  L  H  H1  A  B
50  250  260  90  170  one hundred and seventy
65  280  285  98  180  one hundred and eighty
80  310  295  110  190  one hundred and ninety
100  350  315  120  200  two hundred
125  400  335  145  215  two hundred and fifteen
150  450  390  155  230  two hundred and thirty
200  550  460  190  255  two hundred and fifty-five
250  650  520  250  295  two hundred and ninety-five
300  800  620  290  325  three hundred and twenty-five
350  900  650  330  380  three hundred and eighty
400  1000  710  360  415  four hundred and fifteen
450  1000  750  445  435  four hundred and thirty-five
500  1100  800  495  460  four hundred and sixty
600  1100  900  550  520  five hundred and twenty
700  1450  1000  605  570  five hundred and seventy
800  1560  1100  730  620  six hundred and twenty
Walsh valve always insists on: “ Quality for survival, customer first, user first ” The purpose of
Make every effort to create a “ Professional manufacturing and professional service ” Our company hereby makes the following commitments:
Pre sales service:
1
the products are designed and manufactured in strict accordance with Chinese GB, Hg standards and American API standards
2
the products are inspected, accepted and packed by professional staff before leaving the factory

3
abide by the contract, ensure timely supply and keep in touch with customers at any time
after-sale service:
1
the product warranty period is 12 months from the date of delivery, and “ San Bao ” Service (guaranteed return, replacement and repair)

2
during the use of products, our factory regularly sends professional technicians to visit customers and provide technical support

3
quickly respond to customers' complaints about product quality problems, and the after-sales service personnel rush to the site at the first time

Ordering process:
1
please fax the customer's purchase list to 025-58836577 or call 025-58183158

2
receive the customer's purchase list and provide the customer with valve model selection and quotation (price list)

3
  Specific agreement: delivery date, special requirements, etc

Ordering instructions:
1
if the customer has special requirements for the product, the following instructions must be provided in the order contract:
⑴
Structure length
⑵
Connection form
⑶
Nominal diameter, full bore, reduced diameter, pipe size
⑷
Operating medium, temperature and pressure range
⑸
Experiment, inspection standard and other requirements
2
various driving devices can be configured according to the special requirements of customers

3
if the customer provides the determined valve type and model, the customer shall correctly explain the meaning and requirements of the model, and sign the contract on the condition that both the supplier and the demander understand and agree

Contact: Mr
Huang
Tel: 025-58183158 Fax: 025-58836577
Mobile: 13851791122  QQ:9232250
Website: www
woesi Com email: njwoesi@163
com
Quality is our foundation, honesty is our future, innovation is our development Nanjing wals fluid control equipment Co
, Ltd
always takes quality as the foundation, all in order to meet the business philosophy of users, constantly applies new technologies, new processes and new materials, and wholeheartedly provides users with high-quality valve products and more perfect after-sales service
Wols is from Jiangsu Province, with scientific management, mature design, exquisite technology, sophisticated equipment, careful processing and accurate detection, in order to be more perfect
Since the sales, it has been well received by the majority of users
Your needs, our goals!
Ordering instructions of Nanjing Walsh fluid control equipment Co
, Ltd
:
When the product is used in important occasions or complex environments, please try your best to provide design drawings and detailed parameters, and our professional engineers will review and select the type for you

If you have any questions You can call our company and we will provide you with the best pre-sales consulting service

Sales Tel
: 86-025-58183158  Mobile: 13851791122   Fax: 86-025-84446656  Or you can visit our website http://www
njwoesi
com Find the valve you need

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