nitrogen sealing device control valve TISUN W02 manufacturer from China NINGBO TISUN VALVE INDUSTRIES CO.,LIMITED

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 W02

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

nitrogen sealing device is composed of the control valve, actuator, pressure spring, pilot, pulse pipe and other parts.

Technical parameters and performances

Body

DN	DN15 20 25 32 40 50 65 80 100 mm
PN	PN1.6 4 .0 6.4MPa
Flange standard	JB/T79.1-94 79.2-94etc.
Body material	Cast iron (HT200), cast steel (ZG230-450), cast stainless steel (ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2T i)
Plug type		Single-seat (P), double-seat (N), sleeve (M)
Plug material	Hard seal	Stainless steel (1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti)
	Soft seal	Stainless steel embedded with rubber ring
Pressure balancing	Stainless steel bellows
Flow characteristic	Quick open
Working temperature	≤80℃

Actuator

pressure setting range	0.4~0.5 5~10 9~14 13~19 18~ 24 22~28 27~33 36~44 42~51 49~58 56~66
Diaphragm cover material	Teflon coated A3, A4 steel sheet
Diaphragm material	NBR, EPR, fluorine rubber, oil resistant rubber

1 Main valve r	2 Main valve plug	3 Main valve actuator	4 Pressure reducing valve	5 Throttle valve
6 Pilot plug	7 . Detection mechanism	8 Diaphragm	9 Preset spring

Performance

Set value error	±5%
Allowable leakage	Standard type	Class IV (conforming to GB/T4312-92)
Allowable leakage	Tight type	Class V I (conforming to GB/T4312-92)

Rated flow coefficient, rated travel, performance

30W02-01 nitrogen supply device

DN	25									32	40	50	65	80	190
Seat size	5	6	7	8	10	12	15	20	25	32	40	50	65	80	190
Flow coefficient	0.2	0.32	0.5	0.8	1.8	2.8	4.4	6.9	11	20	30	48	75	120	25
Rated travel	8									10		14	20		25

30W02-02 nitrogen discharge device

DN	20	25	32	40	50	65	80	100
Seat size	20	25	32	40	50	65	81	100
Flow coefficient	6.9	11	20	30	48	75	120	190
Rated travel	8		10		14	20		25

Working principle

In the nitrogen supply device (see figure 1), the medium at the pressure point at the top of the tank is introduced to the detection mechanism (7) through the pressure pipe. The medium produces an acting force on the detection element, which balances the pre-tightening force of the preset spring (8). When the pressure in the tank drops to be lower than the pressure set point of the nitrogen supply device, the balance is destroyed, so that the pilot plug (6) is opened, and the before-valve gas enters the upper and lower diaphragm chambers of the main valve actuator (3) after passing through the pressure reducing valve (4) and throttle valve (5). The main valve plug (2) is opened and nitrogen is filled into the tank. When the pressure in the tank rises to the pressure set point of the nitrogen supply device, the pilot plug (6) is closed by the preset spring force. Due to the spring action in the main valve actuator the main valve is closed and nitrogen supply is stopped.

The nitrogen discharge device (see figure 2) is an internal feedback mechanism. The medium enters the detection mechanism (2) after passing through the bonnet. The medium produces an acting force on the detection element, which balances the pre-tightening force of the spring (3). When the pressure in the tank rises to be higher than the pressure set point of the nitrogen discharge device, the balance is destroyed, so that the plug (1) moves upward to open the valve and discharge nitrogen to the outside. When the pressure in the tank falls to the pressure set point of the nitrogen discharge device, the valve is

closed by the preset spring force.