self-operated pressure and differential pressure control valve TISUN DPCV manufacturer from China NINGBO TISUN VALVE INDUSTRIES CO.,LIMITED

self-operated pressure and differential pressure control valve

Price:	50.0~100.0 USD
Payment Terms:	T/T,L/C,D/A,D/P,WU
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Model No.: TISUN DPCV

Production Capacity: 50-100 each month

Delivery Date: as per the quantity

Standard or Nonstandard: Standard

Structure: Control

Temperature of Media: Others

Brand Name: TISUN

Exp Region:: America, Europea, east asia

Means of Transport: Ocean,Land,Air

Packing: WODDEN CATTON

Power: Others

Pressure: Others

Material: Stainless Steel

Media: Gas

functions:: for control

self- operated pressure and differential pressure control valve is composed of the control valve, two actuators and two springs for pressure setting

self- operated pressure and differential pressure control valve is composed of the control valve, two actuators and two springs for pressure setting. It is suitable for controling differential pressure in the pipes of non-crrosive liquids, gases and steams .It works according to the priority action principle and two parameters can not be simultaneously controlled

The main features are as follows:

1.It has the pressure balancing function with high sensitivity.

2.Lownoise, reliable performance, free of maintenance

3.The standard modular design is adopted.

4 Various combined controls can be carried out through the assemblies.

Technical parameters and performances

Body

DN		DN15,20,25,32,40,50,65,80,100,125,150,200,250mm
PN		PN1.6,4 .0MPa
Flange standard		ANSI,JIS,DIN GB JB(special standards can be offered according to user requirements)
Body material		Cast iron (HT200), cast steel (ZG230-450), cast stainless steel (ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2T i)
Plug material	Hard seal	Stainless steel (1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti)
	Soft seal	Stainless steel embedded with rubber ring
Pressure balancing		Stainless steel bellows (DN15~125), balanced diaphragm (DN150~250)

Actuator

Effective area (cm2)	32 ※	80	250	630
Pressure setting range	0.8~1.6	0.1~0.6	0.015~0.15	0.005~0.035
Minimum differential pressure that ensures normal work of the pressure valve	0.3~1.2 ≥0.05	0.05~0.3 ≥0.04	0.01~0.07 ≥0.01	≥0.005
Allowable maximum differential pressure between the upper a nd lower diaphragm chambers	2	1.25	0.4	0.15
Material	Diaphragm cover: galvanized steel sheet;
Material	Diaphragm: EPDM or FKM with fiber
Control pipeline connection	Copper pipe or steel pipe Φ10X 1(mm);
Control pipeline connection	Ferrule connection: R1/4"

Note: ※The pressure setting range correspond ing to the effective area does not apply to valves with Dn150

Performance

Set value error		±8%
Allowable leakage (under stipulated testing conditions)	Hard seal	4×0.01% valve rated capacity
	Soft seal	DN15~50	DN65-DN125	DN150~250
		10 bubbles/ min	20 bubbles/min	40 bubbles/min

Allowable working temperature

DN		15~125mm	150~250mm
seal type	Hard seal	≤150℃	≤140℃
		Cooling tank≤200℃	Cooling tank and extension ≤200℃
		Cooling tan k and heat sink ≤350℃※	Cooling tank and extension ≤300℃※
	Soft seal	≤150℃

Note: ※It indicates the allowable working temperature is valid only when the medium is steam.

Rated flow coefficient, noise measuring coefficient, allowable differential pressure

DN		15	20	25	32	40	50	65	80	100	125	150	200	250
Rated flow coefficient		4	6.3	8	16	20	32	50	80	125	160	280	320	450
Noise measuring coefficient Z value		0.6	0.6	0.6	0.55	0.55	0.5	0.5	0.45	0.4	0.35	0.3	0.2	0.2
Allowable differential	PN16	1.6								1.5		1.2	1
pressure (Mpa)	PN40	2								1.5		1.2	1

Working principle

According to different combinations, refer to the working principle of the self-operated (before/after-valve) pressure control valve and self-operated differential pressure control valve (valve closed/opened when pressure rises). (working according to the priority action principle)