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Artigo n.º:
99103006
Dwyer Large Diaphragm Pressure Switch, 1638-1, .20-1.0" w.c.
Artigo n.º:
99103006
STD 13850000
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from EUA
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Encomende já e receba por volta de Sábado, Agosto 08
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Os nossos principais Parceiros Logísticos
Our highest precision conventional large diaphragm pressure switch provides maximum dependability.
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Note: Step Down Voltage Transformer required for using electronics products of EUA store (110-120). Recommended power converters Compre Agora.
O que se Destaca
Wide Pressure Range
Offers an adjustable pressure range from 0.20 to 1.0 inches of water column, catering to various applications and providing accurate pressure regulation suitable for sensitive equipment.
Durable Design
Constructed with high-quality materials to ensure long-lasting performance and reliability, minimizing downtime and maintenance costs for industrial applications.
Easy Installation
Features a user-friendly design that simplifies installation, making it accessible for technicians and reducing setup time in pressure control systems.
Detalhes do produto
| Operation Mode | automatic |
| Current Rating | 15 Amps |
| Contact Type | Normally Closed, Normally Open |
| Connector Type | Screw |
| Switch Type | Pressure Switch |
| Terminal | Spdt |
| Circuit Type | 2-way |
| Mounting Type | Wall Mount |
| Actuator Type | Pressure Sensitive |
| Control Method | Touch |
| Connectivity Protocol | X-10 |
| Color | Silver |
| Item Dimensions | 20 x 12 x 12 inches (50.8 x 30.5 x 30.5 cm) |
| Unit Count | 1.0 Count |
| Number of Items | 1 |
| Material Type | Metal |
| Contact Material | Stainless Steel |
| International Protection Rating | IP54 |
| Specification Met | Csa,csa Listed |
| Brand Name | Dwyer |
| Model | 1638-1 |
| Manufacturer | Dwyer Instruments, Inc. |
| Part Number | 1638-1 |
| Item Weight | 4.6 Pounds (2.09 kg) |
| Brand | Dwyer |
| Material | Metal |
| Item dimensions L x W x H | 20 x 12 x 12 inches (50.8 x 30.5 x 30.5 cm) |
Quem Deverá Comprar?
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HVAC Technicians
Ideal for technicians managing pressure levels in heating and cooling systems due to its precision and reliability.
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Industrial Applications
Suitable for monitoring pressure in industrial settings, ensuring equipment operates within safe parameters effectively.
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Research Laboratories
Perfect for laboratories requiring accurate pressure regulation for experiments, enhancing safety and experimental outcomes.
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Home Use
Not ideal for home applications, as it is tailored for industrial and commercial pressure management.
DESCRIÇÃO DO PRODUTO
Dwyer Large Diaphragm Pressure Switch, 1638-1, .20-1.0" w.c.
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Perguntas e Respostas dos Clientes
-
pergunta:
What is a Large Diaphragm Pressure Switch, 1638-1?
Resposta: A Large Diaphragm Pressure Switch, 1638-1, is a device designed to monitor and control pressure in various systems, typically ranging from .20 to 1.0 inches of water column (w.c.). This switch operates by using a diaphragm that responds to pressure changes, enabling it to open or close electrical contacts based on preset pressure values. These switches are vital in applications such as HVAC systems, gas-fired appliances, and industrial machinery, ensuring safe and efficient operation while preventing over-pressure situations. -
pergunta:
How does the Large Diaphragm Pressure Switch operate?
Resposta: The operation of the Large Diaphragm Pressure Switch is based on its diaphragm mechanism. As pressure within a system changes, the diaphragm flexes accordingly. When the pressure hits a set point, the diaphragm activates an electrical switch, either closing or opening a circuit. This is crucial for automation in applications like heating systems, where maintaining the correct pressure ensures efficient operation and safety. You'll find these switches commonly used in systems that require accurate pressure monitoring and control. -
pergunta:
What are practical applications for the Large Diaphragm Pressure Switch?
Resposta: The Large Diaphragm Pressure Switch is widely used in various applications such as HVAC systems, gas burners, and pneumatic machinery. For example, in HVAC systems, it helps control fan operations based on air pressure, optimizing energy use and comfort levels. In gas appliances, it can prevent unsafe pressure conditions from occurring. Such versatility makes it an essential component in both commercial and residential settings where pressure management is critical. -
pergunta:
What pressure range does the 1638-1 model operate within?
Resposta: The 1638-1 model of the Large Diaphragm Pressure Switch operates within a range of .20 to 1.0 inches of water column (w.c.). This specific range allows it to effectively monitor low pressure, which is often critical in systems such as natural gas lines or HVAC equipment. Being able to work within this range makes it suitable for many applications where maintaining precise low pressure is necessary for both safety and efficiency. -
pergunta:
Can the Large Diaphragm Pressure Switch be used outdoors?
Resposta: Yes, many models of the Large Diaphragm Pressure Switch, including the 1638-1, are designed to be durable and can be used in outdoor environments. However, it is important to check the specifications for environmental resistance such as moisture and temperature ranges. These switches can be used in outdoor HVAC units or as part of pressure control systems in exterior gas applications, ensuring that they can operate under varying environmental conditions without compromising performance. -
pergunta:
What is the difference between a pressure switch and a pressure sensor?
Resposta: A pressure switch and a pressure sensor perform related but distinct functions. While a pressure switch activates a mechanism based on preset pressure values (turning on/off a device), a pressure sensor provides continuous readings of pressure levels without switching actions. For instance, pressure switches like the 1638-1 might be used to control HVAC equipment, whereas a pressure sensor might be used to monitor pressure levels for data logging or further processing in industrial applications. -
pergunta:
What are the dimensions of the Large Diaphragm Pressure Switch, 1638-1?
Resposta: The dimensions of the Large Diaphragm Pressure Switch, 1638-1, may vary slightly by manufacturer, but it is typically compact enough to fit in most control panels or HVAC systems. Dimension specifications are crucial for installation, so always refer to the product's datasheet for exact measurements like height, width, and mounting options. Proper dimensioning ensures compatibility during installation and operation in your specific application settings. -
pergunta:
Is the Large Diaphragm Pressure Switch adjustable?
Resposta: Yes, the Large Diaphragm Pressure Switch, 1638-1, typically features an adjustable set point for pressure activation, allowing users to customize it for specific applications. This adjustability is crucial for tailoring the switch to comply with various operational needs, ensuring it opens or closes at the desired pressure level. For instance, in HVAC systems, setting the correct pressure limit is essential for optimal performance and energy savings. -
pergunta:
Can I use the 1638-1 pressure switch for high-pressure applications?
Resposta: The Large Diaphragm Pressure Switch, 1638-1, is designed specifically for low-pressure applications, typically operating between .20 to 1.0 inches of water column (w.c.). It is not suited for high-pressure applications, as exceeding its rated range could lead to malfunction or damage. For high-pressure requirements, it's essential to select a pressure switch designed to handle those conditions, ensuring reliable and safe operation. -
pergunta:
Where can I buy Large Diaphragm Pressure Switch, 1638-1, .20-1.0" w.c. in São Tomé and Príncipe?
Resposta: You can purchase the Large Diaphragm Pressure Switch, 1638-1, .20-1.0" w.c. on Ubuy. Ubuy offers a wide selection of high-quality pressure switches, providing detailed product descriptions and customer reviews to help you make an informed decision. Their online platform is designed to enhance your shopping experience, allowing you to find the right products conveniently.
Dwyer Pressure Switches Editorial Review
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Prós
- Reliable pressure control
- Wide pressure range
- Durable construction
- Easy to install
- Sensitive and accurate readings
Platform Trust & Buyer Confidence
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Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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STD 13850000
Encomende já e receba por volta de Sábado, Agosto 08
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Transação segura
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Os nossos principais Parceiros Logísticos
Entrega internacional mais rápida
Recursos e benefícios
- Highest precision for reliable performance.
- Visible set point indicator for convenience.
- UL and CSA listed, FM approved.
- Suitable for air conditioning and industrial use.
- Electrical capability of 15 amps for small loads.
- Handles pressure limits up to 25 psig surge.
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