Y43X-1O/16, Y13X-1O/16T(p) series proportional pressure reducing valves consist of valve body, piston, gland,O-ring, seal pad etc. parts. The valve is set with a floating piston in its internal cavity and changes the pressure status at water inlet and outlet by means of the pressure difference caused by the different hori-zontal areas on both sides of the piston. The area difference on both sides of the piston with the pipeline subjected to pressure makes the pressure difference on water in and out at both inlet and outket of the valve, thus getting the purpose of pressure reductrion. This valve can reduce both "dynamic" and "static"pressures, has a strict and brand-new structure, smooth movement, exquisite volume, light weight and is easy to be mounted and maintained, wearable and leak-preventing. It is made with advanced workmanship and surface treatment, therefore is corrosion-proof and rust-proof without pollution to water nature.

The standard pressure ratios provided by this Co. are available with: 2:1, 3:1, 3:2, 4:1, 5:1, 5:2 etc., and those pressure reducing valves with special ratios can also be designed upon the users'requirement.

\ Main Technique Number Type

Y13X-10/16	Y43X-10/16
Type of connection		Endo screw thread	Flange
Applicable motium		Water\Air
Applicable temperature		≤90℃
Working pressure		1.0MPa\1.6MPa\2.5MPa
Pressure error		2.5%
Minimum opening pressure	2:1	0.2MPa
	3:1	0.3MPa
	4:1	0.3MPa
	5:2	0.2MPa

\Material For Main Parts Name of parts

Materials
Body\Gland	Cl\Stell casting\Bronze\ Stainless steel
Piston	Bronze or Stainless steel

Main External And Connecting Dimensions
Table 1 Type

Y13X-10/16       2:1:1:2:1:1:2
DN(mm)	15	20	25	32	40	50
G(mm)	1/2″	3/4″	1″	11/4″	11/2″	2″
L(mm)	80	80	90	100	110	120
D(mm)	53	58	63	69	75	86

Table 2 Type

Y43X-10/16              2:1\311\3:2\4:1\5:1\5:2
Nominal diameter DN(mm)	L	D	D1	D2	b	n-φd
50	85	165	125	102	20	4-18
65	102	185	145	122	20	4-18
80	122	200	160	133	22	8-18
100	140	220	180	158	24	8-18
125	160	250	210	184	26	8-18
150	175	285	240	212	26	8-22
200	230	340	295	268	28/30	8-22/12-22