Cast Iron/Carbon Steel BS4504/DIN/ANSI B 16.5 Class 125/150 Size 2′-12 Triple Duty Check Valve Water Check Valve Backflow Preventer

Product Description

Cast Iron/Carbon Steel BS4504/DIN/ANSI B 16.5 Class 125/150 Size 2'-12 Triple Duty Check Valve Water Check Valve Backflow PreventerProduct Description
Triple duty control check valve is generally used for pump control in open water supply systems and closed circulation systems.
It is often installed behind the water pump outlet or rubber expansion joint to achieve flow regulation, check, cut off, and change the installation direction.
Specification

NO.	Name	Material
		Chinese Standard	ASTM Standard
1	Body	QT450-10	A536 65-45-12
2	Disc	HT250+EPDM	ASTM 126-ClassB+EPDM
3	Spring	0CrNi18	ASTM A276 304
4	Upper Body	QT450-10	A536 65-45-12
5	Hand Weel	Carbon Steel	ASTM A570

Nominal Diameter: DN65-DN300,2 1/2'--12'
Nominal Pressure: Class125/PN16/PN25
Flanged End Standard: ANSI B16.1,EN1092-2,GB/T17241.6
Working Temperature: -20ºC- 120ºC

NPS	2.5	3	4	5	6	8	10	12
DN	65	80	100	125	150	200	250	300
L1	187	208	244	305	359	481	516	611
L2	117	98	111	140	168	233	248	356
H(Open)	328	346	353	460	508	697	799	981
Kv	48.29	82.56	117.5	211.49	383.37	464.87	793.17	1139.48
Cv	56.4	96.4	137.1	246.8	447.4	542.5	925.6	1329.8

Advantages
1.This valve should be installed at the outlet side of the pump. It can be installed vertical or horizontal.
When install it at vertical position, the medium should flow from down to up.
2. Can connect with 90° flanges or 180° flanges.
3. This valve has Non-return, regulating, close flow function.
4. All sizes have special lifting hole, can be installed conveniently.
Packaging & Shipping
Company Profile
Shanghai Flow Valve &Fitting Co, Ltd. was founded in 1998, mainly in foreign trade export business, has invested in two professional manufacturing factories in Shanghai Jiading Waigang Industrial Zoneand Tianjin Wuqing Jingbin Industrial Park.These two subordinate factories are responsible for the professional production of ANSl, DINBS, GB and other standards of ball valve, butterfly valve, gate valve, stop valve, balance valve, filter, plug valve, control valve and other series of products.Nearly 80% of the company's products are exported to Europe,America, the Middle East, Southeast Asia and other parts of the world and we also conduct technical cooperation and OEM production with many European and American companies.Shanghai Flow Valve & Fitting Co., Ltd. began to actively participate in major domestic engineering projects in 2003.lt has established five sales centers in Shanghai, Beijing, Guangzhou, Xi'an and Chongqing, and its business covers northeast China, North China, northwest China,Southwest China, Central China, South China and other regions.The sales network and after-sales network basically cover most regions of mainland China.

Certifications
Exhibition
FAQ
Q1: Can I have a sample order for valve?
A1:Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
Q2:Do you have any MOQ limit for valve order?
A2: Low MOQ, 1pc for sample checking is available.
Q3: How do you ship the goods and how long does it take to arrive?
A3: We usually ship by sea. It usually takes 30 days to arrive. Airline shipping also optional.
Q4:How to proceed an order for valve?
A4: Firstly let us know your requirements or application.
Secondly We quote according to your requirements or our suggestions.
Thirdly customer confirms the samples and places deposit for formal order.
Fourthly We arrange the production.
Q5:Do you offer guarantee for the products?
A5: Yes, we offer 1 year warranty to our products.
Q6: Why choose us?
A6: We are a manufacturer, we have been manufacturing for over 20 years.