Self Operated Pressure Reducing Valve (ZZY)

• Certification: ISO, CE
• Temperature: Ordinary Temperature
• Connection: Flange
• Valve Seat: Single-Seat
• Structure: Spring Diaphragm
• Material: Cast Steel,Stainless Steel
• Model NO.: ZZY
• Transport Package: Plywood Case
• Trademark: GOOLE, OEM
• Origin: China(Mainland)
• HS Code: 8481804090

Product Description

ZZY Self Operated Pressure Reducing Valve

Product Description

Brief Introduction. 

For ZZY series self-operating pressure reducing valves, its special advantage is that there is no need for any external power source, it can use the medium's flow force to realize the function of pressure regulating automatically when the medium flow through the actuator,and different plug and actuator can be selected in meet of different working conditions.as its good regulating performance,it has a widely application in petrochemical industry,power staion and light industry.

Application

Field of Application.

Product Name:ZZY Self Operated Pressure Reducing Valve.
Pressure Rating: 1.6/4.0/6.4 Mpa.
Nominal Diameter: DN20-200 mm.
Body Material: Steel WCB,Stainless Steel.
Valve Seat: Single Seat,Double Seat,Sleeve.
Standard flanges: DIN, ANSI, JIS.

Product Details

Main External Dimensions.

 

 

 

Nominal Diameter(mm)			20	25	32	40	50	65	80	100	125	150	200
L		1.6/4.0 Mpa	150	160	180	200	230	290	310	350	400	480	600
		6.4 Mpa	230	230	260	260	300	340	380	430	500	550	650
B			233		332		373	522		673	980		1200
H	Pressure Regulating Range (Mpa)	15~140	475		520		540	710		780	840	380	915
		120~300	455		500		520	690		760	800	370	880
		280~500	450		490		510	680		750	790	360	870
		480~1000	445		480			670		740	780	350	860
		600~1500	445		570		600	820		890	950		1000
		1000~2500	445		570		600	820		890	950		1000
A		15~140	282		308
		120~300	232
		280~1000	196					196			282
		600~2500	85	96

Product Parameters

Main Technical Parameters and Indexes of Performance.

Nominal Diameter(mm)	20				25	32	40	50	65	80	100	125	150	200
	10	12	15	20
Kv	1.8	2.4	4.4	4	11	20	30	48	75	120	190	300	480	760
Allowable Maximum Pressure Differential	2.5					2.0			1.6			1.0
Nominal Pressure	1.6/4.0/6.4 Mpa
Flow Characteristics	Quick Open
Allowable Minimum Pressure Differential	0.05 Mpa
Pressure Regulating Range(Kpa)	15~50 40~80 60~100 80~140 120~180 160~220 200~260 240~300 280~350 330~400 380~450 430~500 480~560 540~620 600~700 680~800 780~900 800~1000 900~2000
Working Temp.	Liqud≤140,Gas≤80,With radiator/condenser ≤350.
Applicable Medium	Gas,Steam,Low Viscosity Liquid.

Note:Pressure range can be designed upon our customers'requirement.
 
Main Technical Parameters and Indexes of Performance.

Regulating Accuracy		±8 %
Allowable Leakage	Metal Seat(L/H)	Single Seat(IV Class)≤1/10000 x rated value
		Double Seat/Sleeve Type(II Calss )≤5x1/1000 x rated value
	Soft Seat (ml/min)	DN(mm)
		20	25	32	40	50	65	80	100	125	150	200
		0.15		0.3		0.45	0.6	0.9	1.7	4.0		6.75

 

View of the factory