Self operated single seat pressure regulating valve

NegotiableUpdate on 05/06

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Nature of the Manufacturer: Producers

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Overview

ZZYP-16C DN250 self operated single seat pressure regulating valve does not require external energy. It uses the energy of the regulated medium as the power source, introduces an actuator to control the position of the valve core, changes the pressure difference and flow rate at both ends, and stabilizes the pressure before (or after) the valve. It has the advantages of sensitive action, good sealing, and small pressure fluctuations, and is applied to automatic control of pressure reduction and stabilization or release and stabilization of gas, liquid, and steam media. This series of products has three structures: single seat (ZZYP), sleeve (ZZYM), and double seat (ZZYN). The actuator has two types: diaphragm type and piston type. The action type includes pressure reducing valve and rear pressure

Product Details

ZZYP-16C DN250Self operated single seat pressure regulating valveWithout the need for external energy, using the energy of the regulated medium itself as a power source, introducing an actuator to control the position of the valve core, changing the pressure difference and flow rate at both ends, and stabilizing the pressure before (or after) the valve. It has the advantages of sensitive action, good sealing, and small pressure fluctuations, and is applied to automatic control of pressure reduction and stabilization or release and stabilization of gas, liquid, and steam media. This series of products has three types of structures: single seat (ZZYP), sleeve (ZZYM), and double seat (ZZYN). The actuator has two types: diaphragm type and piston type. The action types include pressure relief valve rear pressure regulation (B type) and pressure relief valve front pressure regulation (K type). The nominal pressure rating of the product includes PN16, 40, and 64; Valve body diameter range DN20~300; There are three levels of leakage levels: I * *, IV, and VI energy; The traffic characteristic is fast opening; The pressure is adjusted in stages from 15 to 250MPa. Can be combined as needed to meet the requirements of user operating conditions.

ZZYP-16C DN250Self operated single seat pressure regulating valveIt is composed of valve body, valve seat, valve core, balance spring and other components. It is an energy-saving product that does not require external energy and uses the pressure changes of the regulated medium to automatically adjust. It is based on the principles of mechanics to introduce the controlled medium into the actuator to generate force and push the valve core element up and down to achieve automatic adjustment. It maintains constant pressure or pressure before or after the valve. The feature of this product is that it can work in places without electricity or gas, and the pressure setting value can be adjusted freely during operation. Adopting fast opening flow characteristics, with sensitive action and good sealing performance, it is applied to automatic control of gas, liquid, steam and other medium pressures in industrial equipment such as petroleum, chemical, power station, light industry, printing and dyeing.

【2】 Main component materials:

Material Code		C（WCB）	P（304）	R（316）
main zero component	valve body	WCB（ZG230-450）	ZG1Cr18Ni9Ti（304）	ZG1Cr18Ni12Mo2Ti（316）
	Valve core and seat	1Cr18Ni9Ti（304）	1Cr18Ni9Ti（304）	1Cr18Ni12Mo2Ti（316）
	valve stem	1Cr18Ni9Ti	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
	diaphragm	Nitrile rubber, ethylene propylene rubber, chloroprene rubber, oil resistant rubber
	Membrane cover	A3 and A4 steel coated with tetrafluoroethylene
	filler	Polytetrafluoroethylene, flexible graphite
	spring	60Si2Mn
	guide bushing	HPb59-1

【3】 Main technical parameters

Nominal diameter DN (mm)		20	25	32	40	50	65	80	100	125	150	200
Rated flow coefficient Kv		7	11	20	30	48	75	120	190
Rated stroke (mm)		8		10		14	20		25	40		50
Allowable pressure difference (MPa)		2.5		2.0			1.6			1.0
Nominal pressure (MPa)		1.6 4.0 6.4
flow characteristics		Hurry up
Pressure regulation 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, 880-1000, 600-1500, 1000-2500
Adjustment accuracy (%)		±5
Working temperature ℃		Liquid ≤ 120; Gas ≤ 80; Equipped with condenser and heat sink ≤ 350 (suitable for high temperature conditions)
Applicable Medium		Holding water, gas, steam, low viscosity medium
Allowable leakage amount	Hard seal (L/h)	Single seat ≤ 10-4 x rated capacity of valve (Class IV); Double seat, sleeve ≤ 5 × 10-3 valve rated capacity (I)***
	Soft seal (ml/min)	0.15		0.30		0.45	0.60	0.90	1.7	4.0		6.75
Pressure reduction ratio		10
	minimum	1.25

Note: The pressure adjustment range can be customized according to user requirements

【4】 External connection dimensions:

Nominal diameter (DN)			20	25	32	40	50	65	80	100	125	150	200
L		PN16、40	150	160	180	200	230	290	310	350	400	480	600
		PN64	230	230	260	260	300	340	380	430	500	550	650
B			383		512		603	862		1023	1380		1800
H	pressure adjust scope MPa	15~140	475		520		540	710		780	840	880	915
		130~300	455		500		520	690		760	800	870	880
		280~500	450		490		510	680		750	790	860	870
		480~1000	445		480			670		740	780	850	860
		600~1500	445		570		600	820		890	950		1000
		1000~2500	445		570		600	820		890	950		1000