Zzlp Self-Operated Flow Control Valve/ Flow Control Valve

• Temperature: Ordinary Temperature
• Certification: GS
• Media: Gas, Oil, Water, Acid
• Standard: Standard
• Connection Mode: Flange
• Power: Self-Regulating
• Material: Stainless Steel
• Type: Cage Type
• Use: Adjust
• Pressure: Normal Pressure
• Port of Ningbo: Class IV (Standard, Metal Seat)
• Body Type: Straight Through, Angle, Z Shape
• Transport Package: Wooden Box
• Specification: DN15-DN500
• Trademark: xc
• Origin: China
• HS Code: 8481804090
• Production Capacity: 10000

Product Description

Self-reliant flow control valve overview
ZZLP self-reliant flow control valve (flow control valve), by a set flow control valve and actuator, mainly to be controlled in the flow once set, do not often change (adjust) the occasion, suitable for non-corrosive liquid, flow control in the system pipeline. The effective pressure of flow regulator is divided into 0.02MPa and 0.05MPa two kinds, should be selected according to the actual situation, select the valve before and after pressure difference is greater than the effective pressure, can be used for the highest temperature of 200ºC non-corrosive liquid media.



Self-reliant flow regulating valve characteristics
Self-reliant flow regulating valve valve pressure balance mechanism, so that the regulator is sensitive, accurate control, allow pressure difference, and set point adjustable and wide range, easy for users to continuously adjust the flow within the set range. It sets detection, control, execution of many functions in a valve, into an independent instrument control side system, the correct use of this valve, can easily achieve the system of flow distribution; Can realize the dynamic balance of the system; Can greatly simplify the system debugging work; Can stabilize the pump working state, etc.
Self-reliant flow regulating valve parameters

Valve body
Nominal diameter	Dn15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 200, 250mm
Nominal pressure	PN1.6, 4.0MPa
Flange standard	ANSl, JIS, DIN, GB, JB(special available by user)
Body material	Cast steel, cast stainless steel
Spool material	Hard seal: stainless steel
	Soft seal: stainless steel inlaid rubber ring
Pressure balance	Stainless steel bellows (DN15-125), balance diaphragm (DN150-250)

Self-reliant flow regulating valve working principle
Self-reliant flow regulating valve without external drive energy, relying on the medium to be adjusted its own pressure as the power source and medium pressure change, according to the set value for automatic adjustment of energy-saving control device. It sets detection, control, execution of many functions in a valve, into an independent instrument control side system.
Self-reliant flow control valve structure

Structure diagram
1	2	3	4	5	6	7	8	9
Current limiter	Valve body	Valve seat	Valve shaft	Valve cover	Bellows	Membrane cover	Diaphragm	Charging valve

Self-operated flow regulator temperature range

Allowable operating temperature
Nominal diameter		15-125mm	150-250mm
Seal type	Hard seal	150 ºC or less	140 ºC or less
		Cooling tank ≤200ºC	Cooling tank and lengthening ≤200ºC
	Soft seal	150 ºC or less