Copper Static Balancing Valve in Threaded Ends for Heating and
Cooling System
PRODUCT INTRODUCTION
1. Description
TJ-71-SV Series calibrated balancing valves offer areliable, simple
and cost effective way to measure and balance all flow rates. Full
throttling range is achieved by 4, 8, 12, 16, 20 or 22 full turns
of the handwheel, enabling a precise setting. This high degree of
accurate adjustment means that the system can be balanced
precisely.
The actual pressure drops in heating and cooling systems are
difficult to establish by calculation because water flows vary from
design flows. They can be corrected easily by regulating the
desired water flow with TJ-71-SV series globe style balancing
valves. By measuring the pressure drop across measuring ports at a
particular handwheel setting, the water flow for the valve size can
be read easily from the appropriate pressure drop graph or flow
balancing wheel. If the flow does not conform with that specified,
adjust the valve and repeat the measuring procedure until the
correct flow has been obtained.
2. Specification
TongJiang double regulating and commissioning valves “TJ-71-SV
Series” are installed in the pipework of central hot water heating
and cooling systems and serve to achieve a hydronic balance between
the various circuits of the system.
The balance is achieved by a presetting with memory position. The
calculated flow rate or pressure loss for each individual pipe can
be preset centrally and regulated precisely. The required values of
presetting can be obtained from the
flow charts. All intermediate values are infinitely adjustable. The
selected presetting can be read off two scales. The double
regulating and commissioning valves have two threaded ports which
are equipped with the pressure test points for measuring the
differential pressure across an integrated venturi.
3. Material
| Material Specifications: |
| Body: Cast coper |
| Trim: (Bonnet, Stem and Restriction Cone)-Brass |
| Union:Brass with EPDM o-ring |
| Stem seals:EPDM |
| Probe seals:EPDM |
If you require other sizes and valve design standards, please send
email to angela@tjfmcn.com to get the drawing.
4. Valve Drawing and Datasheet
| Dimension | ¾” | 1” | 1¼” | 1½” | 2” |
| L (F-NPT) | 3.31 | 3.84 | 4.33 | 4.72 | 5.91 |
| H | 4.57 | 4.69 | 5.35 | 5.43 | 5.83 |
5. Valve Packing with Plywood
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
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
