Spring Loaded Double Parallel Sliding Gate Valves for Gas and Particles

• 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 the Spring Loaded Double Parallel Sliding Gate Valve, a marvel of engineering by SNT Machinery (Qingdao) Co., Ltd. This valve stands out with its exceptionally low operating torque and compact drive size, setting it apart from traditional wedge gate valves. The ingenious internal design features an INCONEL butterfly spring, replacing the conventional coil spring, which simplifies assembly within the valve body. The innovative compensation structure is crafted to prevent jamming, even under high temperatures, eliminating issues of adhesion and wedge extrusion. Our valve plate and seat surfaces are robustly hardened through advanced techniques such as hard alloy overlay welding and Co-Cr-Ni alloy spraying, achieving a remarkable surface hardness of HRC90 or higher. This ensures not only durability but also self-cleaning properties, making it an ideal choice for handling gas and particles with efficiency and reliability.

Our Spring Loaded Double Parallel Sliding Gate Valve is designed for versatility and seamless integration with a range of actuators. Whether you prefer pneumatic, electric, electro-hydraulic, or manual actuators, this valve accommodates them all with ease, offering flexibility to suit your operational needs. Experience the blend of innovation and adaptability with SNT Machinery's superior valve solutions.</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

 

^{This cutting-edge pressure seal bonnet is equipped with a high-density pure graphite gasket, ensuring a superior sealing experience in demanding environments.
An innovative overpressure protection device is integrated into the bonnet, providing robust defense against excessive pressure build-up and ensuring continuous operational safety.
Featuring a spring preloaded flat gate valve, this product guarantees reliable performance and enhanced durability.
Designed with a relatively wide valve seat and gate, this valve offers exceptional stability and security in its applications.
The inclusion of a limit device on the support rod ensures precise control and enhanced operational accuracy.
An anti-rotation device on the valve stem prevents unwanted rotational movement, maintaining consistent and reliable valve function.
By incorporating different hardness levels on both ends of the sealing surface, with a hardness difference of approximately 5HRC, this valve minimizes significant wear: gate - STLG#, valve seat - STL12#.
The bonnet is sealed with a sophisticated conical design, offering superior sealing integrity and efficiency.
Enabling bidirectional flow, this product ensures versatile functionality and adaptability across various applications.
Engineered with two thrust bearings and aluminum bronze sleeves, this valve offers enhanced mechanical strength and longevity.
The structure is available for bypass piping, providing flexibility and convenience in system configurations.}

Spring Compensated Valve Plate Assembly

Employing a graphite ring pressure self-sealing structure, this valve assures exceptional sealing performance under fluctuating conditions.

^{The design optimizes sealing force, increasing in response to rising pressure for unmatched sealing performance.
For high-temperature or frequently changing temperature environments, we advocate the use of graphite pressure sealing gaskets. These gaskets are recommended over standard soft iron gaskets to withstand high-temperature and frequent cycle applications effectively.}

Double Parallel Sliding Gate Valves

<sup>The Double Parallel Sliding Gate Valves boast a groundbreaking sealing structure with two parallel gates and a wedging device, replacing the traditional wedge gate valve. The separate sealing mechanism components ensure continued sealing even under thermal deformation, preventing jamming from high-temperature expansion.

Upon opening, the valve's sealing disk and seat disengage and rise due to the wedge block effect, significantly reducing friction between surfaces. This design requires minimal torque, is easy to operate, and ensures a long service life. It effectively addresses issues such as high lifting force for single gate start, sealing surface wear, poor sealing, short lifespan, and jamming during high-temperature operation, thereby greatly enhancing the valve's sealing performance and durability.</sup>


 

Production application

Company Profile

<sup>SNT Machinery (Qingdao) Co., Ltd is a prestigious producer of state-of-the-art control valves, masterfully combining manufacturing, design, sales, and unparalleled service into a seamless operation. With a strategic location in the dynamic city of Qingdao, Shandong province, SNT Machinery occupies an impressive 42,000 square meters, replete with cutting-edge workshops and top-of-the-line production facilities. As a beacon of technological innovation, this high-tech enterprise boasts independent intellectual property rights and has seamlessly integrated advanced management and production expertise from around the globe. Our workforce is over 150 strong, with 15% dedicated R&D specialists and 30% holding graduate or higher degrees, ensuring a continuous flow of innovation. Our commitment to quality and pioneering technology has resulted in the production of superior quality valves extensively used in the petrochemical, oil, and coal chemical industries. In 2017, our outstanding efforts culminated in a staggering sales value approaching 100 billion.

SNT proudly holds the TS special equipment manufacturing certificate and the distinguished ISO 9001 certification. We have also achieved the coveted net qualification certificates from industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our technological prowess is further demonstrated by numerous national patents. We possess the expertise to design and manufacture a comprehensive array of valves that adhere to ANSI, API, DIN, BS, and JIS standards. By merging global valve advancements with our unique research and development capabilities, we produce a diverse range of valves including GLOBE valves, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, Eccentric Rotary Valves, and T Three-eccentric Center Butterfly Valves.
Our extensive product lineup includes V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves, among others. Our driving mechanisms range from manual to power-driven, pneumatic, and hydraulic. We meticulously select premium materials such as A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M to ensure exceptional durability. Our specifications span from 1/2" to 120" in size, ANSI 150# to 2500# in working pressure, and can withstand temperatures from -196ºC to 1100ºC.

With a foundation built on advanced production technologies, meticulous management, and a robust quality assurance system, SNT Valves are the trusted choice across a spectrum of industries including petrochemical, oil, steel and iron, paper manufacturing, and power stations. Our esteemed clientele features industry leaders such as SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, and PETROCHINA Guangxi branch, to name a few.

At SNT Machinery, we place our users' profitability at the forefront of our mission, dedicating ourselves to crafting excellence in quality and building a reputable brand. Our comprehensive quality assurance and after-sales systems ensure that SNT valves not only meet but exceed expectations, as we forge prosperous partnerships with all our valued customers.</sup>