Yz11X Brass Branch Pressure Reducing Valve

• Media: Steam Oil Water
• Certification: CCC, RoHS, ISO, CE
• Temperature: High Temperature
• Connection: Flange
• Valve Seat: Single-Seat
• Structure: Lever
• Model NO.: YZ11X
• Material: Stainless Steel Carbon Steel Brass
• Transport Package: Wooden Box
• Specification: DN15-DN800
• Trademark: XC
• Origin: China
• HS Code: 8481804090
• Production Capacity: 9999

Product Description

Pipe pressure reducing valves are mainly used in various building water supply systems, fire fighting systems, central air conditioning systems, heating systems, etc. It is used for branch pipe decompression, which can distribute water supply pressure more evenly, avoid overpressure at some water supply points, and optimize water supply zoning in high-rise buildings. The branch pipe pressure reducing valve can replace the zone FM variable speed pump, and can replace the zone pump in the fire water supply system. It is used in the household water supply system, and can protect all the faucets and other water appliances.
The working principle of the branch pressure reducing valve: the outlet pressure acts on the bottom surface of the valve disc on the diaphragm ground. When it exceeds the set value of the spring, the spring is compressed to make the valve disc close. As long as there is no water flow downstream, the outlet pressure will be basically maintained at the set value (its change is only 8% of the change in the inlet pressure); When water is used downstream, the outlet pressure drops and the spring pushes out the diaphragm to open the pressure reducing valve. Water flow for a while, the opening of the pressure reducing valve produces a self-damping effect, so that the opening and closing action tends to balance.
Installation method of the pressure reducing valve: In the household water supply system, the pressure reducing valve is usually installed behind the water meter in order to protect all water appliances after it. If there is a risk of freezing, it should be drained due to attention to heating or water discharge. The pressure reducing valve can be installed in any 360° direction, but the arrow cast on the valve body must be consistent with the actual water flow direction.
Possible causes of failure of the branch pressure reducing valve:
1, frost damage, pay attention to moisturizing in cold areas.
2, the direction of water flow is installed wrong, the pressure reducing valve becomes a check valve, and the outlet pressure is 0.
3, the spring is too tight to close, the pressure reducing valve through P2=P1.
4, the bypass pipe leakage, so that P2 deviates from the set value, in view of the superior reliability and durability of the pressure reducing valve, it is recommended not to install the bypass pipe.
Brass branch pipe pressure reducing valve performance indicators

Nominal pressure	1.6
Shell test pressure (MPa)*	2.4
Seal test pressure (MPa)	1.6
Inlet pressure (MPa)	0.25 ~ 1.6
Outlet pressure range (MPa)	0.1 ~ 0.6
Pressure characteristic deviation	Meets GB/T12245-2005 standard
Deviation of flow characteristics	Conform to GB/T12245-2005 standard
Leak rate	0
Operating temperature	≤80°C

Brass branch pressure reducing valve parts material

Part name	Material
Body, bonnet, lower bonnet	Bronze
Valve seat	Bronze
Valve flap	Nitrile butadiene rubber
Adjusting screw	Bronze
Diaphragm	Nitrile butadiene rubber
Spring	60Si2Mn

Brass branch pressure reducing valve flow coefficient

DN	15	20	25	32	40	50
Cv	1	2	3	5	8	14

yellow
Brass branch pipe pressure reducing valve connection dimensions

Nominal diameter DN	G	L	H		H1
			The P2 acuities were 0.55 MPa	The P2 acuities were 0.8 MPa
15	G1/2"	65	75	90	35
20	G3/4"	75	85	100	35
25	G1"	90	93	115	46
32	G1-1/4"	105	130	150	55
40	G1-1/2"	120	155	175	65
50	G2"	140	175	195	75