China Gold Supplier for China Vacuum Breaker Hose Bib Backflow Preventer, 3/4 Inch, Brass Finish

Short Description:

Df41x backflow preventer is a safety device used to prevent backflow pollution in drinking water pipes. It is composed of a drain between two-stage check valves. The upper chamber of the diaphragm is connected with the inlet end of the first stage check valve. This valve is a new type of safety valve to prevent the pollution of drinking water backflow, so as to ensure the safety and hygiene of drinking water.

Send email to us E-mail whatsapp

Product Detail

OEM/ODM Service

Product Tags

We believe in: Innovation is our soul and spirit. Good quality is our life. Shopper need to have is our God for China Gold Supplier for China Vacuum Breaker Hose Bib Backflow Preventer, 3/4 Inch, Brass Finish, In case you pursuit the Hi-quality, Hi-stable, Aggressive price elements, corporation name is your greatest choice!
We believe in: Innovation is our soul and spirit. Good quality is our life. Shopper need to have is our God for China Hydraulic Tap, Frost Faucet, We have now gained a lot of recognition among customers spread all across the world. They trust us and always give repetitive orders. Furthermore, mentioned below are some of the major factors that have played significant role in our tremendous growth in this domain.
DF41X Technical parameters of backflow preventer

Nominal pressure��MPa��	Sealing test (water)MPa	Strength test (water) MPa	Applicable media	Applicable temperature
1.0	1.1	1.5	Clean water	��80��
1.6	1.76	2.4	Clean water	��80��

installation diagram

DF41X Backflow preventer drawing

Main connection dimensions

model	Specifications	L	D	D1	D2	H	n-d	Specifications	L	D	D1	D2	H	n-d
DF41X	50	230	165	125	99	170	4-19	125	400	250	210	184	240	8-19
	65	290	185	145	118	180	4-19	150	480	285	240	211	255	8-23
	80	310	200	160	132	210	8-19	200	600	340	295	266	290	8-23
	100	350	220	180	156	220	8-19	-	-	-	-	-	-	-