Home Product Water Control Valve Series

Product Classification

Control Valve Series Ball Valve Series Butterfly Valve Series Gate Valve Series Globe Valve Series Check Valve Series Water Control Valve Series Filter Series Steam Trap Series

Diaphragm type inclined-seated multi-functional liquid control check valve

Technical Specifications

Product model: BFDZ701HR
Fluid medium: Water, liquid
Applicable temperature range: -10℃ to 120℃
Applicable pressure: PN0.6 to 1.6 MPa
Connection standards: GB·ANSI·DIN·API·ISO·BS
Valve body material: Spheroidal graphite cast iron; Carbon steel; Stainless steel; Corrosion-resistant valve body components, blue epoxy resin coating
Valve seat material: Stainless steel; Rubber
Valve plate material: Carbon steel; Stainless steel; Ductile iron
Note: All components can be selected with different materials according to actual working conditions.

Sales Hotline：

0086-21-59110018

Product Details

Technical standards

The test complies with the standard GB/T13927-2008 "Pressure Test for Industrial Valves".
The side flange connection complies with the GB/T17241.6-2008 "Integral Cast Iron Flange" standard. It also meets the PN1.0MPa and PN1.6MPa flange connection standards specified in BS4504, ISO7005, and DIN2501.
The 13 series complies with the dimensions specified in GB/T12221-2005 "Structural Dimensions of Metal Valves" for flanged connection butterfly valves of the 13 series.
The 14 series complies with the dimensions specified in GB/T12221-2005 "Structural Dimensions of Metal Valves" for flanged connection butterfly valves of the 14 series.

Features and advantages

The valve plate adopts a large inclination design, with the valve seat placed at an angle. This effectively improves the response speed of the valve to the direction of the medium flow, and better utilizes the flow force and gravity of the medium. At the same time, the truss-shaped streamlined design of the valve plate can increase the flow area, reduce the flow resistance coefficient, and lower the operating cost.
Adopting an eccentric pendulum structure and an external buffering mechanism;
The valve plate adopts a double eccentric swing structure, which is beneficial for reducing flow resistance and vibration.
The buffer damping cylinder effectively controls the closing speed of the valve, reduces and eliminates water hammer. When in use, it has no vibration, no noise and operates smoothly.
Fully self-adaptive flow switch, without external operating system, low carbon and environmentally friendly.
No matter where the piston is located, the contraction flow section remains circular, thus ensuring perfect linear adjustment characteristics.

PN	DN	L	D	K	N-Φ	E	F	J	M	G	H	L1	L2	N-Φ
PN6	1200	630	1405	1340	32-Φ34	880	1230	1040	941	1180	920	287	570	4-Φ26
	1400	710	1630	1560	36-Φ37	995	1380	1500	1009	1180	870	287	665	4-Φ33
	1600	790	1830	1760	40-Φ37	1078	1525	1600	1225	1420	1060	344	775	4-Φ33
	1800	870	2045	1970	44-Φ40	1125	1575	1900	1290	1420	1010	344	885	4-Φ33
PN10	300	270	445	400	12-Φ23	300	485	380	605	500	490	116	75	4-Φ20
	350	290	505	460	16-Φ23	320	510	400	634	500	470	116	103	4-Φ20
	400	310	565	515	16-Φ28	330	540	442	693	500	470	116	130	4-Φ20
	450	330	615	565	20-Φ28	355	585	450	753	590	510	170	157	4-Φ20
	500	350	670	620	20-Φ28	380	645	490	832	590	495	170	185	4-φ20
	600	390	780	725	20-Φ31	440	725	672	941	590	490	170	240	4-φ20
	700	430	895	840	24-Φ31	498	808	700	1009	770	560	211	295	4-Φ20
	800	470	1015	950	24-Φ34	570	850	790	1225	770	540	211	350	4-Φ26
	900	510	1115	1050	28-Φ34	638	935	870	1290	920	785	236	405	4-Φ26
	1000	550	1230	1160	28-Φ37	695	1050	950		920	765	236	460	4-Φ26
	1200	630	1455	1380	32-Φ40	880	1230	1040		1180	920	287	570	4-Φ26
	1400	710	1675	1590	36-Φ43	995	1380	1500		1180	870	287	665	4-Φ33
	1600	790	1915	1820	40-Φ49	1078	1525	1600		1420	1060	344	775	4-Φ33
	1800	870	2115	2020	44-Φ49	1125	1575	1900		1420	1010	344	885	4-Φ33
PN16	300	270	460	410	12-Φ28	300	485	380	605	500	490	116	75	4-Φ20
	350	290	520	470	16-Φ28	320	510	400	634	500	470	116	103	4-Φ20
	400	310	580	525	16-Φ31	330	540	442	693	500	470	116	130	4-Φ20
	450	330	640	585	20-Φ31	355	585	450	753	590	510	170	157	4-Φ20
	500	350	715	650	20-Φ34	380	645	490	832	590	495	170	185	4-Φ20
	600	390	840	770	20-Φ37	440	725	672 ;	941	590	490	170	240	4-φ20
	700	430	910	840	24-Φ37	498	808	700	1009	770	560	211	295	4-Φ20
	800	470	1025	950	24-Φ40	570	850	790	1225	770	540	211	350	4-Φ26
	900	510	1125	1050	28-Φ40	638	935	870	1290	920	785	236	405	4-Φ26
	1000	550	1255	1170	28-Φ43	695	1050	950		920	765	236	460	4-Φ26