Versatile Spring Loaded Double Parallel Sliding Gate Valves for Various Mediums

• 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>Experience the exceptional engineering of the spring loaded double parallel sliding gate valve, a superior alternative to traditional wedge gate valves. Boasting a significantly smaller operating torque and drive size, this innovative valve design features an INCONEL butterfly spring within the internal valve plate, replacing the conventional coil spring. This advancement simplifies assembly within the valve body, enhancing efficiency. Its unique compensation structure ensures seamless operation even under high-temperature conditions, effectively preventing jamming due to adhesion and wedge extrusion. The valve plate and seat are meticulously hardened through advanced techniques such as hard alloy overlay welding, surface spraying of Co-Cr-Ni alloy, WC, or boron, contributing to a remarkable self-cleaning capability with surface hardness reaching HRC90 or higher.

The versatility of the spring loaded double parallel sliding gate valve shines through its compatibility with a wide range of actuation options, including pneumatic actuators, electric actuators, electro-hydraulic actuators, or manual actuators. Tailor it to your specific operational needs and enjoy superior performance and adaptability.</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

 

^{Experience exceptional sealing with a pressure seal bonnet featuring a high-density pure graphite gasket, designed to ensure maximum durability and reliability.
Introducing the state-of-the-art overpressure protection device within the bonnet, crafted to safeguard against excessive pressure, ensuring optimal operational safety.
Discover the precision and reliability of our spring preloaded flat gate valve, engineered for consistent performance in demanding conditions.
Designed with a relatively wide valve seat and gate, this product guarantees enhanced stability and efficient fluid control.
Equipped with a sophisticated limit device on the support rod, providing precise control and operational safety.
Featuring an anti-rotation device on the valve stem, this product prevents unwanted movements, ensuring seamless functionality.
Our design includes different hardness levels on both ends of the sealing surface to minimize wear and tear. With a strategic hardness difference (~5HRC), the gate utilizes STLG#, while the valve seat employs STL12#, ensuring longevity and reliability.
The bonnet is ingeniously sealed with a conical design to provide superior sealing efficiency and durability.
Facilitating efficient operation, our valves support bidirectional flow, enhancing versatility and performance.
Incorporating two thrust bearings and aluminum bronze sleeves, our product offers robust support and long-lasting service.
Featuring an adaptable structure for bypass piping, this valve caters to diverse operational needs with ease.}

Spring Compensated Valve Plate Assembly

The graphite ring pressure self-sealing structure enhances reliability, adapting to varying pressure levels seamlessly.

^{Smart engineering allows the sealing force to increase with pressure, ensuring superior performance under challenging conditions.
For high-temperature or rapidly changing thermal environments, we recommend using graphite pressure sealing gaskets. These gaskets are an excellent replacement for standard soft iron gaskets, ideal for enduring high temperatures and frequent temperature fluctuations.}

Double Parallel Sliding Gate Valves

<sup>Our Double Parallel Sliding Gate Valves are revolutionizing the industry with a cutting-edge sealing structure. Comprising two parallel gates and a unique wedging device, this design replaces the conventional wedge gate valve structure. The innovative sealing mechanism allows components to function independently, maintaining effective sealing even amidst temperature-induced deformation, preventing jamming from high-temperature expansion.

When opening, the valve's sealing disk and valve seat initially disengage, then elevate through the wedge block effect, significantly reducing friction on sealing surfaces. This results in minimal torque, easy operation, and extended service life. This advanced design efficiently resolves issues related to significant lifting force for single gate activation, susceptibility to sealing surface wear, poor sealing quality, short service life, and difficulties in opening and closing at high temperatures, ultimately enhancing the valve's sealing performance and longevity.</sup>


 

Production application

Company Profile

<sup>SNT Machinery (Qingdao) Co., Ltd epitomizes excellence in the production of control valves, skillfully merging design, manufacturing, sales, and services into a cohesive powerhouse. Positioned at the forefront of innovation and rapid growth, SNT boasts a strategic location in Qingdao, Shandong province, sprawling over a vast expanse of 42,000m². Our sophisticated facilities house cutting-edge workshops and state-of-the-art production equipment. As a distinguished high-tech enterprise, we pride ourselves on our proprietary intellectual property and the integration of globally advanced management and production methodologies. Our talented team exceeds 150 professionals, with 15% dedicated to R&D and a significant 30% holding graduate or advanced degrees. Through a commitment to superior quality management and pioneering technological advances, we produce substantial quantities of premium valves serving the petrochemical, oil, and coal chemical industries. Our ambitious trajectory is reflected in our impressive sales, reaching nearly 100 billion in 2017.

SNT Machinery has earned prestigious certifications, including the TS Special Equipment Manufacturing Certificate and ISO 9001, further recognized by the network qualification certificates from SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our technological prowess is evidenced by multiple national patents. We expertly design and manufacture a full range of valves adhering to ANSI, API, DIN, BS, and JIS standards. By synthesizing the best global valve innovations with our independent R&D initiatives, we deliver a diverse lineup of valves, encompassing GLOBE, 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 valve portfolio includes V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, Cryogenic Valves, and more. We offer a range of actuation options, from manual to power-driven, pneumatic, and hydraulic systems. Key materials utilized include A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M, with specifications ranging from 1/2" to 120", pressure ratings of ANSI 150# to 2500#, and temperature tolerance spanning -196ºC to 1100ºC.

With our cutting-edge production technology, meticulous management, and stringent quality assurance systems, SNT Valves proudly serve diverse industries such as petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed client roster includes industry giants like SINOPEC QILU Branch, SINOPEC Qingdao Branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi Branch, PETROCHINA Ningxia Branch, and many more prestigious partners.

At SNT, our customer's prosperity is our mission. We are dedicated to crafting superior quality products and nurturing a reputable brand. Our comprehensive quality assurance and outstanding after-sales service systems ensure that SNT Valves solidify enduring partnerships with our clients, driving mutual success and shared growth.</sup>