ANSI 150-600 for Flanged Durable Self-Operated Pressure Regulator for Butt Welding Applications with Carbon Steel Materials

• Customization: Available
• Temperature: Ordinary Temperature
• Certification: GS, RoHS, CE, ISO9001
• Model NO.: AOC-3111K
• 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

_{Introducing the AOC-3000, a cutting-edge self-operated pressure regulating valve that epitomizes energy efficiency and autonomy. This innovation operates by harnessing the inherent energy of the medium it regulates, eliminating the need for external power sources such as electricity or gas, making it an ideal choice for remote or off-grid applications. The AOC-3000 boasts unparalleled adaptability, allowing for easy adjustment of pressure settings within a defined range. Tailored to meet diverse industrial demands, this versatile valve comes in three distinct forms: AOC-3111 for single-seated applications, AOC-3113 for sleeve-based operations, and AOC-3114 for double-seated needs. Users can select the perfect fit based on specific operational conditions including differential pressure, temperature, and medium state, as well as leakage criteria. Further enhancing its versatility, the AOC-3000 series offers three actuator types: the standard and reinforced diaphragm, piston, and metal diaphragm (bellows). Designed with rapid-opening flow characteristics, the AOC-3000 is renowned for its swift response and exceptional precision, with an adjustment error margin of just ≤10%. Its compact design is a space-efficient alternative to traditional heavy hammer pressure reducing valves, simplifying both installation and adjustment processes. Widely acclaimed across industries, it is indispensable for applications in petroleum, chemical, electric power, metallurgy, food processing, light textile, machinery manufacturing, and civil construction, adeptly managing gas, liquid, and steam pressure reduction, stabilization, and relief.}
 

Actuator Features

 

Figure 1a showcases a sophisticated pressure regulator crafted to expertly manage the post-control valve pressure. This pressure-closed type valve operates ingeniously: the medium gracefully enters the valve body following the arrow's direction, and after meticulous throttling, it is released through the valve seat and spool. In a parallel pathway, when the medium is steam with a condenser, it courses through the pressure tube into the actuator to exert its influence on the diaphragm. This interaction triggers a precise spool displacement, masterfully achieving both pressure reduction and stabilization. Should the pressure after the valve ascend, the diaphragm's force intensifies, compressing the spring and driving the spool. This process artfully diminishes the valve's opening until the pressure descends to the desired level. Conversely, a pressure drop behind the valve diminishes the force on the diaphragm. The spring's counteraction propels the spool to enhance the valve opening, restoring the pressure to the established level.

 

Figure 1b presents a dynamic pressure regulator designed for controlling the pressure in front of the valve, employing a pressure open type action. The operation unfolds elegantly as the medium enters the valve body guided by the directional arrow, then emerges through the valve seat and spool post-throttling. Concurrently, when dealing with steam plus a condenser, the medium traverses the pressure tube, impacting the diaphragm in the actuator. This causes a calculated spool displacement, achieving seamless pressure relief and stabilization. When pressure in front of the valve heightens, an amplified force on the diaphragm compresses the spring, leading the spool to augment the valve opening until pressure decreases to the predetermined level. In a reversed scenario, if the pressure dwindles, the diaphragm's force weakens, and the spring's reactive force propels the spool to contract the valve opening, raising the pressure to the intended level. Should the pressure fall below the set threshold, the valve remains securely closed.
 

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

 

For optimal performance, when utilizing the AOC-3111 type self-operated pressure regulating valve within a gas or low viscosity liquid medium, it is ideally positioned upright on a horizontal pipe. However, in instances where spatial constraints are present, installation may be adapted to an upside-down or diagonal orientation. Notably, if the medium is deemed clean, the installation of part 3 may be deemed unnecessary, simplifying the setup.

 

In scenarios involving steam or high viscosity liquid media, the AOC-3111 type self-operated pressure regulating valve finds its best fit when installed upside down on a horizontal pipe, ensuring maximum efficiency and reliable performance for these specific applications.
 

Production application

 

Company Profile

SNT Machinery (Qingdao) Co., Ltd stands as a premier producer of control valves, seamlessly integrating manufacturing, design, sales, and service into one cohesive entity. With a robust foundation and rapid development, SNT is strategically located in Qingdao, Shandong province, sprawling across a 42,000m2 area, complete with state-of-the-art workshops and production equipment. As a high-tech enterprise boasting independent intellectual property rights and leveraging imported advanced management and production expertise, we pride ourselves on our team of over 150 dedicated workers, with R&D specialists comprising 15% and graduates or higher degree holders making up 30%. Through our commitment to a high-quality production management team and pioneering technology research and development, we consistently produce a vast array of high-caliber valves utilized in the petrochemical, oil, and coal chemical sectors, achieving a sales milestone of nearly 100 billion in 2017.

SNT has proudly attained the TS special equipment manufacturing certificate and ISO 9001, alongside securing net qualification certificates from industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our innovative spirit is further underscored by acquiring numerous national patents across various technologies. Our expertise enables us to design and manufacture an extensive series of valves adhering to ANSI, API, DIN, BS, and JIS standards. Drawing upon the strengths of renowned valves globally, combined with our independent research and development, we are equipped to manufacture a diverse range of valves, including GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, and Eccentric Rotary Valves, as well as T Three-eccentric Center Butterfly Valves.
Our comprehensive lineup extends to V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, Cryogenic Valves, among others. Our driving mechanisms encompass manual operation, power-driven, pneumatic, and hydraulic systems. The main components are crafted from premier materials like A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, etc. Specifications range from 1/2" to 120", with a working pressure of ANSI 150# to 2500# and operational temperatures spanning -196ºC to 1100ºC.

Leveraging our advanced production technology management and unwavering quality assurance system, SNT Valves have gained widespread acclaim and adoption across various industries, including petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele features industry leaders like SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, SINOPEC Qingdao Refinery, and many more, such as SINOPEC Changling and Jinan branches.

At SNT, we prioritize customer profitability, dedicating ourselves to establishing superior quality and a reputable brand. Our impeccable quality assurance and after-sales systems ensure that SNT valves collaborate harmoniously with all our customers, forging paths to shared prosperity and success.