Precision Pneumatic Actuator for Spring-Loaded Sliding Valve Systems

• Customization: Available
• Media: Gas
• Temperature: High Temperature
• Model NO.: AOC-9033
• Type: Straight-through
• Material: Stainless Steel
• Connection Form: Flange
• Pressure: High Pressure
• Actuator: Electric
• Seal Surface: Parallel Gate Valve
• Thread Position of Valve Rod: Inside Gate Valve
• Usage: Regulation, Safety, Emptying, Drain, Temperature Control, Flow Control
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Medium: Gas/ Suspended Particles/Fibers
• Actuator Conbination: Pneumatic Cylinder Actuator
• Standards: API/Sil
• Characters: Excellent Opening and Closing
• Operations: Featuring Full Bore/Low Flow Resistance
• Operation: Good Sealing Performance
• Connections: RF Flange/Rtj/Sw Socket Welt/Bw Butt Weld
• Actuator Size/Plug Size: 1.1/2′′(40A)-36′′(600A)
• Actuators: Pneumatic, Electric
• Fluid Temperature: -20~+566degree
• Body Materials: A216 Wcb/C/A351CF8
• Body Material: Carbon Steel/Stainless Steel
• Trim Materials: A105+Enp+PTFE/SUS316+Stellite
• Flow Characteristics: on-off
• Body Rating: ANSI150-1500
• Transport Package: Plywood Case
• Trademark: SNT
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000/Year

Product Description

Product Description

<sup>Introducing our cutting-edge spring-loaded double parallel sliding gate valve, a marvel in engineering compared to traditional wedge gate valves. This innovative design boasts a reduced operating torque and a more compact drive size, thanks to the ingenious use of an INCONEL butterfly spring instead of the conventional coil spring. This enhancement simplifies the assembly process within the valve body. The valve's unique compensation structure is specially crafted to prevent jamming even under high-temperature conditions, eliminating issues caused by adhesion and wedge extrusion. Our valve plate and seat are fortified with advanced hardening techniques, including hard alloy overlay welding and surface spraying with Co-Cr-Ni alloy, WC, and boron, achieving an impressive surface hardness of HRC90 or above. This not only enhances durability but also imbues the valve with self-cleaning capabilities, ensuring optimal performance and longevity.

Our versatile spring-loaded double parallel sliding gate valve is engineered to work seamlessly with a variety of actuators. Choose from pneumatic actuators, electric actuators, electro-hydraulic actuators, or manual actuators to suit your specific application needs, ensuring flexibility and adaptability in diverse operational environments.</sup>

Product Parameters

Body  Type			AOC-9031 Single Parallel Sliding Gate Valves	AOC-9032 Double Parallel Sliding Gate Valves	AOC-9033 Spring Loaded Double Parallel Sliding Gate Valves
Actuator Size			1.1/2''(40A)-36''(900A)	1.1/2''(40A)-36''(900A)	1.1/2''(40A)-24''(600A)
Plug Size			1.1/2''(40A)-36''(900A)	1.1/2''(40A)-36''(900A)	1.1/2''(40A)-24''(600A)
Body Rating			ANSI 150-300	ANSI 150-600	ANSI 150-1500
Fluid Temperature			-20~+250ºC	-20~+450ºC	-20~+566ºC
Connections			Flanged(RF, RTJ), Butt Weld, Socket Weld(SW, BW)
Body Materials			A216WCB/C,A217 WC6/9, A351 CF8, A351CF8M,etc
Trim Materials			A105+ENP+PTFE,SUS316+Stellite, etc		SUS316+Stellite
Flow Materials			ON-OFF	ON-OFF	ON-OFF
Leakage		Metal Seat	ANSI Class V	ANSI Class V, VHS	ANSI Class V, VHS
		Soft Seat

 

Structural Features

 

Product Feature

 

^{Equipped with a robust pressure seal bonnet featuring a high-density pure graphite gasket for superior sealing integrity.
Ingeniously designed overpressure protection device incorporated into the bonnet to safeguard against excessive pressure build-up.
Innovative spring preloaded flat gate valve ensures smooth and efficient operation.
Engineered with a relatively wide valve seat and gate for enhanced durability and performance.
Includes a precise limit device on the support rod for controlled and reliable movement.
Fitted with an anti-rotation mechanism on the valve stem to maintain alignment and prevent unwanted rotation.
The sealing surface is designed with varying hardness at both ends, minimizing wear. The gate features STLG# hardness, while the valve seat is crafted with STL12#, offering a hardness difference of approximately 5HRC.
Employs a conical design for bonnet sealing, ensuring a tight and secure seal.
Facilitates bidirectional flow, enhancing versatility and functional application.
Incorporates two thrust bearings paired with aluminum bronze sleeves for optimal performance and longevity.
Bypass piping structure is thoughtfully available to accommodate diverse operational needs.}

Innovative Spring Compensated Valve Plate Assembly

Features a graphite ring pressure self-sealing structure for dynamic sealing efficiency.

^{Ingeniously designed to enhance sealing force in proportion to increasing pressure.
For environments with high temperatures or frequent temperature fluctuations, we recommend opting for graphite pressure sealing gaskets, which offer superior sealing reliability compared to standard soft iron gaskets, especially under high-temperature and frequent temperature cycle conditions.}

Exceptional Double Parallel Sliding Gate Valves

<sup>The Double Parallel Sliding Gate Valves utilize an advanced sealing structure consisting of two parallel gates and a wedging device, replacing the conventional wedge gate valve. This innovative design separates sealing mechanism components, preventing jamming even during temperature-induced expansions.

Upon opening, the sealing disk and valve seat disengage and ascend due to the wedge block effect, significantly reducing friction between sealing surfaces. This results in minimal torque, effortless operation, and extended service life. This design effectively addresses challenges such as high torque demand for single gate initiation, sealing surface wear, suboptimal sealing, short lifespan, and high-temperature opening and closing jams, thereby significantly enhancing sealing performance and durability.</sup>


 

Production application

Company Profile

<sup>SNT Machinery (Qingdao) Co., Ltd. stands as a beacon of innovation in the realm of control valve manufacturing, seamlessly integrating design, production, sales, and service. With a strategic base in the vibrant Qingdao, Shandong province, our sprawling 42,000 m2 facility is a testament to cutting-edge manufacturing excellence, outfitted with state-of-the-art equipment. As a high-tech enterprise, we boast independent intellectual property rights and have embraced advanced global management and production methodologies. Our diverse team of over 150 skilled professionals includes a robust 15% dedicated to R&D, with 30% holding graduate or higher qualifications. Through a synergy of exceptional production management and pioneering R&D, SNT Machinery has forged a reputation for crafting superior quality valves, with a strong presence in the petrochemical, oil, and coal chemical sectors. Our triumphant 2017 saw sales skyrocket to nearly 100 billion.

SNT Machinery prides itself on achieving the esteemed TS Special Equipment Manufacturing Certificate and ISO 9001 certification, alongside the net qualification endorsements from industry titans like SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Furthermore, our technological prowess is underscored by an array of National Patents. Our valve offerings span a comprehensive range, compliant with ANSI, API, DIN, BS, and JIS standards. Through the fusion of global valve innovations and proprietary research, we have perfected a diverse catalog: from GLOBE Valves, High-Pressure Boiler Blow-down Valves, and High-performance Butterfly Valves to Angle-regulating Valves, Eccentric Rotary Valves, and beyond.
Our extensive valve portfolio includes V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves. Driving mechanisms encompass manual, power-driven, pneumatic, and hydraulic operations. The main component materials are of premium grades, such as A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M. Specifications range from 1/2"~120", with working pressure from ANSI 150#~2500#, and operational temperatures stretching from -196ºC to 1100ºC.

Backed by sophisticated production technology and a robust quality assurance framework, SNT Valves have become integral to industries such as petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele includes industry giants like SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, and PETROCHINA Ningxia branch, among others, reflecting our unwavering commitment to excellence.

At SNT Machinery, we place the prosperity of our clients at the forefront, pledging ourselves to the creation of exceptional quality and a distinguished brand. Our impeccable quality assurance and dedicated after-sales service systems ensure that SNT valves not only meet but exceed customer expectations, fostering enduring partnerships and shared success.</sup>