Self-Operated Micro Pressure Control Valve

Self-Operated Micro Pressure 2kpa Control Valve

Short Description:

Product Name: self-operated nitrogen blanketing valves
Valve Category: Control Valve
Brand: Yiluoke
Technical Data: DN15-DN600
Made In: China
Supplier: Xiamen Yiluoke Import and Export Trading Co., Ltd

Product Detail

Product Overview

Self-operated micro pressure control valves and self-operated nitrogen blanketing valves require no external energy. They take the energy of the controlled medium as power source, introduce pressure into the diaphragm chamber of the actuator to generate thrust, and drive the movement of throttling elements to realize automatic regulation.

Self-operated micro pressure control valves and self-operated differential pressure control valves are mainly applied to gas combustion systems of various industrial furnaces to control the mixing flow ratio of two fuels for optimal combustion conditions. They are also used for pressure reduction, pressure stabilization and pressure relief regulation of various industrial media such as sealing oil and hydrogen in hydrogen-cooled generator sets, liquefied gas, oxygen and nitrogen, as well as gas blanketing for storage tanks of various oil products and chemical liquids.

Main Technical Parameters

Structure of Self-operated micro pressure control valve

Valve Body

Item	Specification
Valve Body Type	Straight-through cast globe valve
Nominal Diameter	DN20～200mm
Nominal Pressure	PN1.0, 1.6MPa
Flange Standard	ANSI, JIS, DIN, GB, JB; customized standards available upon request
Connection Type	Flange (FF, RF, RTJ)
Bonnet Type	Standard integrated type
Gland Type	Bolt compression type
Sealing Packing	V-type PTFE packing, PTFE-impregnated asbestos packing, asbestos textile packing, graphite packing
Pressure Regulation Range (KPa)	0.5～6, 5～10, 9～15, 12～19, 18～25, 22～30 28～35, 32～40, 38～50, 48～60, 58～72, 70～100
Minimum Differential Pressure for Normal Operation	≥0.01MPa
Operating Temperature	≤80℃
Applicable Media	Gas, steam, low-viscosity liquid

Internal Trim

Item	Specification
Plug Type	Single-seat, sleeve plug
Flow Characteristic	Linear

Main Component Materials & Structure Drawing

No.	Part Name	Material Option 1	Material Option 2	Material Option 3	Material Option 4
1	Valve Body	WCB	CF8	CF8M	CF3M
2	Valve Seat	304	304	316	316L
3	Gasket Core	304	304	316	316L
4	Bonnet	Q235	304	316	316L
5	Valve Stem	304	304	316	316L
6	Lower Diaphragm Cover	Q235	—	—	—
7	Diaphragm	Fiber-reinforced EPDM or FKM	—	—	—
8	Upper Diaphragm Cover	Q235	—	—	—
9	Gland	Q235	—	—	—
10	Threaded Cover	Q235	—	—	—

Main Performance Indexes

Item	Parameter
Regulation Accuracy	≤10%
Allowable Leakage (Under Specified Test Conditions)	Hard Seal: 4×0.01% of rated valve capacity Soft Seal leakage (L/h) by DN size: DN20:0.15, DN25:0.3, DN32:0.45, DN40:0.6, DN50:0.9, DN65:1.7, DN80:4.0, DN100:6.75

Rated Flow Coefficient & Allowable Differential Pressure

Nominal Diameter DN	20	25	32	40	50	65	80	100	125	150	200
Rated Flow Coefficient Kv	7	11	20	30	48	75	120	190	300	480	760
Allowable Differential Pressure (MPa, PN16)	1.6	1.5	1.2	—	—	—	—	—	—	—	—

Format Note

All original text, parameter data and material information remain unchanged; unified table layout and hierarchical titles for foreign trade independent station display, diaphragm uniformly translated as diaphragm as required

Tag: Self-Operated-Control-Valves Gas-Pressure-Regulators