Compact Self-Operated Pressure Regulator for Efficient Valve Operations with Pn10-Pn110 for Diameter Pressure From China

• Customization: Available
• Temperature: Ordinary Temperature
• Certification: GS, RoHS, CE, ISO9001
• Model NO.: AOC-3111K
• Media: Gas, Oil, Water, Acid
• Standard: Standard
• Connection Mode: Flange
• Power: Pneumatic
• Material: Stainless Steel
• Type: Self-Operated
• Connections: Butt Welding/Flange
• Valve Body Materials: A216 Wcb/A351 CF8/CF3/CF8m/CF3m/Zg230-450
• Body Materials: Zg0cr18ni9ti/Zg0cr18ni12mo2ti
• Spool Materials: 304ss/316ss/304lss/316lss/1Cr18Ni9/0cr18ni12mo2t
• Valve Seat Materials: 304ss/316ss/304lss/316lss/1Cr18Ni9/0cr18ni12mo2ti
• Stem Materials: 304ss/316ss/304lss/316lss/1Cr18Ni9/1Cr18Ni9
• Rubber Diaphragm Materials: Nitrile/Ethylene/Fluoro/Oil Resistant Rubbe
• Membrane Cover Materials: Q235/Q235/Painting PTFE
• Packing Materials: Polytetrafluoroethylene/Flexible Graphite
• Flow Characteristic: Come on
• Service Temperature: -60~350degree
• Allowable Leakage: Class IV for Hard Seal/ Class VI for Soft Seal
• Flange Standard: GB/T9113-2000jb/T79.1-94/Jb/T79.2-94/Hg20592~Hg
• Flange Sealing Surface Type: Pn16 for Convex Flange/Pn25 for Convex Flangepn40
• Flange End Distance Standard: GB12221-89
• Transport Package: Wooden Box and Cardboard Box.
• Trademark: SNT
• Origin: China
• HS Code: 8481804090
• Production Capacity: 500000PCS/Year

Product Description

 

Product Description

_{The AOC-3000 self-operated pressure regulating valve is a benchmark in innovative design, offering energy-efficient solutions that eliminate the need for external power sources. This cutting-edge product harnesses the inherent energy of the regulated medium, providing unparalleled operational efficiency in environments devoid of electricity or gas-ultimately leading to significant energy savings. With the flexibility to adjust pressure settings within a specified range, the AOC-3000 is designed to meet diverse process requirements. Our versatile product line includes three distinctive valve configurations: AOC-3111, a single-seated valve; AOC-3113, a sleeve valve; and AOC-3114, a double-seated valve. Each option caters to specific operational conditions such as differential pressure, temperature, and medium state, along with varying leakage demands. Additionally, the AOC-3000 is equipped with three actuator styles to suit various process needs: the standard and reinforced diaphragm, piston, and the robust metal diaphragm (bellows). The valve is engineered with fast-opening flow characteristics, ensuring swift responsiveness and high precision with an impressive error margin of ≤10%. A compact alternative to conventional heavy hammer pressure reducing valves, the AOC-3000 is easily adjustable and finds widespread application in industries including petroleum, chemical, electric power, metallurgy, food processing, textile, machinery manufacturing, and civil construction. It is ideal for managing the pressure reduction, stabilization, and relief of gases, liquids, and steam, both post- and pre-valve adjustments.}
 

Actuator Features

 

Figure 1a: This remarkable pressure regulator is engineered to expertly manage the post-control valve pressure with a pressure-closed action mode. Here's how it works: The medium gracefully courses into the valve body, obediently following the direction of the arrow. Once inside, it is deftly throttled by the valve seat and spool, ensuring optimal output. Meanwhile, a parallel path channels the medium through the pressure tube-specifically with steam, this includes a condenser-guiding it into the actuator to act upon the diaphragm. This prompts a precise displacement of the spool, achieving the dual objectives of reducing and stabilizing pressure. Should the downstream pressure rise, the diaphragm force intensifies, compressing the spring, which subsequently drives the spool to constrict the valve opening, thereby restoring the pressure to its desired set value. Conversely, when the pressure downstream diminishes, the diaphragm's force wanes, and the spring's reaction nudges the spool to expand the valve's opening, stabilizing the pressure back to its set mark.

 

Figure 1b: This innovative regulator is designed to deftly control the pressure preceding the valve, utilizing a pressure-open action mode. The process unfolds as follows: The medium confidently enters the valve body, guided by the arrow's path. Once inside, it is skillfully throttled by both the valve seat and spool. Simultaneously, a second path directs the medium through the pressure tube-complete with a condenser when dealing with steam-focusing it towards the actuator to engage with the diaphragm. This interaction induces a strategic displacement of the spool, securing both pressure relief and stabilization. Should the upstream pressure intensify, the diaphragm's force escalates, compressing the spring and prompting the spool to widen the valve opening, until the pressure recedes to the designated level. Similarly, if the pressure wanes, the diaphragm's influence reduces, and the spring's force guides the spool to narrow the valve opening, ensuring pressure is elevated back to the target level. If the upstream pressure falls beneath the set threshold, the valve remains sealed, safeguarding the system integrity.
 

Product Parameters

nominal diameter DN(mm)	20	25	32	40	50		65		80		100		125		150	200	250	300
rated flow  coefficient KV	5.8	11	12.5	20	32		50		80		125		160		320	450	630	900
rated stroke (mm)	8		10		12		15		18		20		30		40	45	60	65
nominal diameter DN(mm)	20 (or G3/4'')
Valve seat diameter	2	3	4	5		6		7		8		9		10		12	15	20
rated flow  coefficient KV	0.02	0.08	0.12	0.20		0.32		0.5		0.80		1.20		1.80		2.80	4.0	5.8
nominal pressure PN	Mpa		1.6, 2.5, 4.0,6.4(6.3) /2.0, 5.0, 11.0
	Bar		16, 25, 40, 64(63)/20, 50, 110
	Lb		ANSI: Class150,Class300,Class600
pressure segment 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, 540~620,600~700,680~800,780~900,880~1000,900~1200, 1000~1500,1200~1600,1300~1800,1500~2100, (Other Scope Special Design)
flow characteristic	Come on.
regulation accuracy	±5-10(%)
service temperature	-60~350ºC (Special design below -60ºC)    350~550ºC
allowable leakage	Class IV (hard seal)    Class VI (soft seal)(GB/T4213-08)
(/decompression ratio (Inlet pressure/Outlet pressure)				1.25~10( special design beyond this range)

 

Product Dimensions

Nominal diameter(DN)			20	25		32	40	50		65	80		100	125	150	200			250	300
Length of the receiver tube (B)			383			512		603		862			1023	1380		1800			2000	2200
Flange face distance L(PN16,25,40)			150	160		180	200	230		290	310		350	400	480	600			730	850
Flange face distance L(PN64)			230			260		300		340	380		430	500	550	650			775	900
Pressure adjustment range KPa	15~140	H	475			520		540		710			780	840		880			940	950
		A	280			308
	120~300	H	455			500		520		690			760	800		870			900	950
		A	230
	280~500	H	450			490		510		680			750	790		860			890	940
		A	176							194			280
	480~1000	H	445			480				670	740		780	780		850			880	930
		A	176							194				280
(Kg) PN16Weight (Kg) PN16 as an example			26		37				42	72		90	112	130	169		285	495		675

Mounting Method

 

When the valve is utilized within environments involving gas or low viscosity liquid media, the AOC-3111 type self-operated pressure regulating valve is optimally positioned upright on a horizontal pipeline. In instances where space constraints dictate otherwise, it may be installed in an inverted or diagonal orientation. Notably, if the medium is verified as clean, the installation of part 3 is rendered unnecessary, streamlining the setup process.

 

In scenarios where the valve is applied to steam or high viscosity liquid media, the AOC-3111 type self-operated pressure regulating valve is customarily mounted in an inverted position on a horizontal pipeline. This method ensures seamless functionality and optimal performance of the system.
 

Production application

 

Company Profile

SNT Machinery (Qingdao) Co., Ltd. stands as a beacon of innovation and excellence in the production of control valves, integrating top-tier manufacturing, cutting-edge design, comprehensive sales, and dedicated services into a unified powerhouse. Nestled in the vibrant city of Qingdao, Shandong province, SNT spans an impressive 42,000 square meters and boasts state-of-the-art workshops and production facilities. As a high-tech enterprise rich with independent intellectual property rights, SNT gleans from both global management methodologies and production expertise. Our team is comprised of over 150 skilled professionals, with 15% dedicated to research and development, and 30% holding graduate or advanced degrees. Leveraging a robust production management force and pioneering technology research, we manufacture high-quality valves extensively utilized in petrochemical, oil, and coal chemical sectors, achieving a notable sales volume approaching 100 billion by 2017.

SNT proudly holds the TS Special Equipment Manufacturing Certificate and ISO 9001 certification, alongside the prestigious net qualification certificates from industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. With numerous national patents under our belt, we exhibit unparalleled innovation in valve technology. Our capabilities include designing and manufacturing a comprehensive array of valves in adherence to ANSI, API, DIN, BS, and JIS standards. By amalgamating the strengths of globally renowned valves with our own inventive R&D, we excel in producing a vast spectrum of valves, such as GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, and Eccentric Rotary Valves, among others.
Our extensive range includes Three-eccentric Center Butterfly Valves, V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves. We offer a variety of operation methods, including manual, power-driven, pneumatic, and hydraulic systems. Our primary components utilize premium materials like A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, supporting specifications from 1/2" to 120", with working pressures of ANSI 150# to 2500#, and operational temperatures ranging from -196ºC to 1100ºC.

With a strong foundation in advanced production technology management and a stringent quality assurance system, SNT valves are trusted and employed across a multitude of industries, including petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele features prominent names such as SINOPEC Qilu branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, and PETROCHINA Ningxia branch, among others. Our commitment to excellence ensures that SNT valves are a preferred choice for industry leaders.

At SNT, the prosperity of our users is our utmost priority. We are unwavering in our dedication to crafting exceptional quality and building a reputable brand. Our comprehensive quality assurance and after-sales systems are designed to ensure that SNT valves foster strong partnerships with our customers, driving mutual growth and success. Together, we are creating a prosperous future, one valve at a time.