Low Headloss In-Line Rubber Duckbill Check Valve in Nitrile, DIN PN
16 Bar
PRODUCT INTRODUCTION
1. Description
Low Headloss In-Line Rubber Duckbill Check Valves are a very
specific type of check valve that many municipal design engineers
are specifying across residential and commercial areas of the
United States. So what is it and how is it used in municipal
pumping applications? Let’s break it down…
Low Headloss – headloss is essentially the amount of energy which is lost as a
result of resistance to flow. A certain amount of energy is
required to move a given volume of liquid through a pipe, and as
that liquid moves through the pipe, friction causes the resistance
to flow and subsequent loss of energy. Low headloss check valves
are designed to exhibit low headloss characteristics (or low loss
of energy) during operation, which is important for municipal
design engineers to know as these valve headloss values affect pump
selection. A design engineer has to know how much headloss is
estimated to occur as the liquid moves through the check valve in
order to select the right pump to push fluid through that piping
system.
In-line – An “in-line” style check valve is usually installed at the inlet
or discharge end of a piping system. Typically, when you install an
inline check valve into a piping system, 40% to 60% of the flow is
constricted (if you have a 6-inch line, for example, flow is only
moving through 3- or 4-inches); so in some cases, municipal design
engineers may need their inline check valves to have a full port
design.
Rubber Duckbill – Rubber duckbill check valves have been around since the 1980s
and are well-known in the U.S. as they were designed to replace
traditional swing gate or flap gate type check valves. Ideal for
water and wastewater systems, rubber duck bill check valves are
elastomeric, and therefore, have the capacity to flex around
objects that might get caught up in the water and wastewater
stream, such as beer bottles and other kinds of debris. Rubber
duckbill check valves, which are less likely to freeze or deform,
are designed to withstand most types of municipally-pumped media.
Check Valve – a check valve is installed in a pumping system to prevent the
backward flow of the pumped material or to prevent backflow from
outfall discharge areas. There are many types of check valves, and
different ones are used in various types of municipal applications.
Commonly used to control back pressures from sewage treatment
plants, outfalls, and tidal operations, in-line rubber duckbill
check valves are fully passive flow devices which do not require
maintenance or any outside sources of power or manual assistance to
operate.
If you require other sizes and valve design standards, please send
email to angela@tjfmcn.com to get the drawing.
2. Valve Drawing and Datasheet
| Valve ID | 3" | (80) | 4" | (100) | Dimensional Data Size inch / (mm) | | 14" | (350) | "16 | (400) | 18" | (450) |
| 6" | (150) | 8" | (200) | 10" (250) 12 " (300) |
| Cuff Width | 2.00 (38) | 2.00 (38) | 3.00 (51) | 3.00 (51) | 3.00 (51) | 3.00 (51) | 5.00 | (102) | 5.00 | (102) | 5.00 | (102) |
| Length | 8 | (204) | 9 | (229) | 12 | (305) | 14 | (356) | 16 | (406) | 20 | (508) | 26 | (661) | 29 | (737) | 31 | (788) |
| Backpressure | 40 | (12) | 40 | (12) | 40 | (12) | 40 | (12) | 40 | (12) | 40 | (12) | 20 | (6) | 20 | (6) | 20 | (6) |
| Feet / mm |
| Wt. Lbs. / kgs. | 5 | 5 | 8 | 14 | 18 | 35 | 75 | 115 | 137 |
| (2.27) | (2.27) | (3.63) | (6.36) | (8.17) | (15.88) | (34.02) | (52.17) | (62.15) |
Please feel free to contact with us at angela@tjfmcn.com or filling up an enquiry form instructed at the bottom.
You will get an effective response within 24 hours from TongJiang
Team.
COMPANY PROFILE (Video)
floa
1. Our Factory
30 years experience of valve and pipeline industry.
10 senior technical engineers
20000 m2 production area
More than 100 employees to provide professional service.
As the reliable OEM for famous valve brand companies.
t ball valve
2. Factory Show
TONGJIANG Valve Technology Company was established for 30 years.
There are more than 100 employees which includes 10 professional
engineers.
OUR SERVICE float ball valve
Reliable Quality, Competitive Price
Reply your inquiry in 2 hours with professional service.
CONTACT INFORMATION
Miss Angela
Mobile: +86 13588429004(Whatsapp)
Skype: angelazhuo1
E-mail: angela@tjfmcn.com
Tel No: +86 571 86991717
Official Website: www.zjtjvalve.com
