SIGMA 18.30.291 Sigmatherm Thermostatic Valve 18.30.071 3/4

( Brand: Sigma ), ( Manufacturer Part Number: 18.30.291 ), ( Type: Thermostatic Mixer ), ( Installation: Wall Mounted ), ( Assembly Required: No ), ( Item Length: 2 In ), ( Room: Kitchen ), ( Faucet Hole Spacing: 12 In )

Review SIGMA Sigmatherm 3/4 Inch Thermostatic Valve

The Sigma 18.30.291 Sigmatherm 1/2 inch 3/4 Turn Thermostatic Valve is a high-performance, temperature control solution designed for various heating applications. This valve, featuring model numbers 18.30.291 for the body and 18.30.071 for the actuator, is manufactured by Sigma, a renowned brand in the industry known for its innovative and reliable heating solutions.

The body of this thermostatic valve is constructed from brass, ensuring durability and resistance to corrosion. The valve is designed with a 1/2 inch inlet and outlet connection, making it a suitable choice for medium-sized heating systems. The actuator of this valve, identified by the model number 18.30.071, is attached to the valve stem and is responsible for controlling the valve's position based on the set temperature.

This thermostatic valve operates using a bimetallic temperature sensor, which expands and contracts in response to changes in temperature. When the temperature rises above the set point, the valve closes to maintain the desired temperature. Conversely, when the temperature drops below the set point, the valve opens to allow heated water to flow through.

The Sigma 18.30.291 Sigmatherm thermostatic valve is factory-set to a temperature range of 40 F to 140 F (4.5 C to 60 C), but the temperature setting can be easily adjusted using the adjusting nut on the actuator. The valve's temperature range can be expanded or contracted based on specific application requirements.

The valve's flow rate is dependent on the temperature difference between the water temperature and the set temperature. At a temperature difference of 20 F (11.1 C), the valve has a flow rate of approximately 1.5 gallons per minute (GPM). This flow rate can vary depending on the temperature difference and specific application requirements.

This thermostatic valve comes with a factory-installed packing gland and O-ring seal to ensure a leak-free installation. Additionally, it is compatible with a wide range of fluids, including glycol solutions, making it a versatile choice for various heating applications.

In conclusion, the Sigma 18.30.291 Sigmatherm 1/2 inch 3/4 Turn Thermostatic Valve is a reliable and efficient temperature control solution designed for various heating applications. Its durable brass construction, adjustable temperature setting, and compatibility with a wide range of fluids make it a versatile and practical choice for maintaining consistent temperatures in heating systems.

The Sigma 18.30.291 Sigmatherm 18.30.071 3/4 thermostatic valve is a heating product used in various applications such as radiator systems, underfloor heating, and industrial processes. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this valve.

1. Temperature Control: The thermostatic valve allows precise temperature control, ensuring optimal comfort and energy efficiency in heating systems.

2. Durability: Sigma valves are known for their robust construction, making them suitable for heavy-duty applications. The 18.30.291 model features a brass body and stainless steel parts, which enhances its durability.

3. Leak-Free Operation: The valve comes with an O-ring seal, ensuring a leak-free operation and preventing potential water damage.

4. Easy Installation: The thermostatic valve is designed for easy installation, and it can be installed on both hot and cold water lines.

5. Energy Savings: By allowing precise temperature control, the thermostatic valve can help reduce energy consumption and save on heating costs.

1. Cost: The Sigma 18.30.291 Sigmatherm 18.30.071 3/4 thermostatic valve may be more expensive than some other thermostatic valves on the market.

2. Limited Compatibility: The valve may not be compatible with all heating systems, so it is essential to check the specifications before purchasing.

3. Requires Regular Maintenance: Thermostatic valves, like any other heating component, require regular maintenance to ensure optimal performance and longevity.

The Sigma 18.30.291 Sigmatherm 18.30.071 3/4 thermostatic valve offers several advantages, including precise temperature control, durability, leak-free operation, easy installation, and energy savings. However, it also comes with some disadvantages, such as a higher cost, limited compatibility, and the requirement for regular maintenance.

If you are looking for a high-quality thermostatic valve that offers precise temperature control and durability, the Sigma 18.30.291 Sigmatherm 18.30.071 3/4 thermostatic valve is an excellent choice. However, it is crucial to ensure that the valve is compatible with your heating system and consider the additional cost and maintenance requirements before making a purchase. If you have a limited budget or prefer a more affordable option, you may want to explore other thermostatic valve models on the market.

Details:

part #: 1830291 prices

• $299.99-$1000.00

specifications fauceplumbo:

• brand: Sigma
• mpn: 18.30.291
• type: Thermostatic Mixer
• installation: Wall Mounted
• assembly required: No
• item length: 2 In
• room: Kitchen
• faucet hole spacing: 12 In

shipping fauceplumbo:

• type: Fixed
• transit: 4-10 Days
• carrier: USPS
• class: Standard
• cost: $15.00
• service: USPS Ground Advantage

general fauceplumbo:

• condition: New
• Home Garden > Kitchen Fixtures > Kitchen Faucets

returns fauceplumbo:

• policy: No Returns

offer fauceplumbo:

• options: Ship-to-home
• availability: In Stock
• quantity: 2
• best offers: True
• started: August 2, 2025
• sold: 0

seller fauceplumbo:

• rating: 99.1%
• # reviews: 1500
• city: Massapequa, New York

payments fauceplumbo:

• wallet: Apple-pay
• credit card: Diners-club
• other

Sigma 18.30.291 Is Similar To:

• 1.807933t.63 Siena Sigma Faucet Three Valve Tub Shower Set Trim Only (31.8% similar) 1 scab once an order has shipped, it cannot be cancelled. Please see shipping calculator for rates. Our featured brands include belle forte, delta, Huntington brass, Kingston brass, Kohl, pioneer, west brass and others...(July 5th, 2016)
• Sigma Generic 30190 Thermostatic For 1 Inch Piping 4-1 4 Diameter (40.3% similar) Reference to brand names and numbers are for reference only, not meant imply that they made by manufacturer oem. Sometimes images shown are generic and not meant to infer that they actual. Original shipping cost deducted. Return documentation should clearly specify credit or exchange...(July 2nd, 2025)
• Sigma 18.30.171 Sigmatherm 18.30.077a 1 2 Inch Thermostatic Valve With Two Volume Controls (76.6% similar) Sigma Sigmatherm 18.30.077A 1/2 thermostatic valve with two volume controls, new in box...(August 2nd, 2025)
• Sigma 18.30.062 Sigmatherm Pressure Balance Tub And Shower Valve (60.9% similar) Sigma SIGMATHERM18.30.062 pressure balance tub and shower valve...(September 20th, 2025)