FORESPAR 902001 Marelon Valve MF853

( Brand: Forespar ), ( Part Type: Valve ), ( Manufacturer Part Number: 902001 )

Review FORESPAR Marelon Inch Valve #902001 New Old Stock

The Forespar 902001 Marelon MF853 Valve is a high-performance, dependable marine valve designed for use in various applications on boats and other watercraft. This valve is constructed with superior materials to ensure durability and longevity, making it an excellent choice for boat owners who demand top-notch components for their vessels.

At its core, the Forespar 853 Marelon Valve is a dual-diaphragm, self-contained, air-operated valve. This design offers several advantages over traditional valve systems. The dual diaphragms provide superior sealing, preventing any potential leaks and ensuring that the valve operates efficiently and effectively. Additionally, the self-contained design means that the valve requires no external power source, making it an ideal choice for remote or off-grid installations.

The valve body and diaphragms are made from Marelon, a high-performance, engineered thermoplastic material. This material offers several benefits over traditional metals or rubber. It is lighter in weight than metal, making it easier to install and transport. It also offers excellent resistance to corrosion, making it ideal for use in marine environments. Marelon is also more flexible than metal, allowing the valve to accommodate thermal expansion and contraction without the risk of cracking or breaking.

The Forespar 853 Marelon Valve is available in a variety of configurations to suit different installation requirements. It is available in both manual and automatic operating modes, depending on the specific application. The valve also comes in various sizes and pressure ratings, allowing boat owners to choose the right valve for their system.

The valve operates using compressed air, which is supplied through a 3/8" NPT air inlet. The valve also features a 3/8" NPT drain outlet, making it easy to drain any condensation that may accumulate in the valve body. The valve is also equipped with a 3/4" NPT inlet and outlet for the fluid or gas being controlled, and it can be easily configured for either flow-through or pressure applications.

The Forespar 902001 Marelon MF853 Valve is a high-quality, reliable, and versatile marine valve that is ideal for a wide range of applications. Its superior construction, durable materials, and efficient design make it a top choice for boat owners who demand the best components for their vessels. Whether you're looking for a manual or automatic valve, a small or large valve, or a valve for a specific application, the Forespar 853 Marelon Valve is sure to meet your needs and exceed your expectations.

The Forespar Marelon MF853 valve is a popular choice for sailors due to its durability and reliability. Here are some pros and cons of buying this valve:

1. High-strength composite construction: The Marelon valve is made of a high-performance composite material called Marelon, which is known for its strength, lightweight, and resistance to corrosion.

2. Leak-free performance: The valve's design ensures a leak-free seal, making it ideal for use in marine applications where watertightness is crucial.

3. Easy to install: The Marelon valve is relatively easy to install, and it requires no bedding compound or special tools.

4. Low maintenance: The valve requires minimal maintenance, and it does not need to be serviced or rebuilt regularly.

5. Versatile: The Marelon valve is available in various sizes and configurations, making it suitable for use in a wide range of marine applications.

1. Cost: The Marelon valve is more expensive than some other types of marine valves, which may be a consideration for some buyers.

2. Limited availability: The Marelon valve may not be readily available in all marine retailers or distributors, which could make it more difficult to source.

3. Brittleness: The composite material used in the Marelon valve is brittle and can crack if subjected to extreme force or temperatures.

4. Lack of standardization: The Marelon valve does not have a standardized thread size, which may require the use of adapter fittings or custom fabrication.

The Forespar Marelon MF853 valve is a high-quality, reliable, and durable marine valve that offers several advantages over traditional metal valves. Its composite construction makes it lightweight, corrosion-resistant, and leak-free. However, it comes with a higher price tag, limited availability, and some installation considerations. Ultimately, the decision to buy a Marelon valve depends on the specific requirements of the marine application and the budget of the buyer.

If you are looking for a reliable and durable marine valve that can withstand the corrosive marine environment, the Forespar Marelon MF853 valve is an excellent choice. Its composite construction and leak-free design make it an ideal solution for marine applications where watertightness and longevity are essential. However, be prepared to pay a premium price for this high-performance valve and consider the installation requirements carefully.

part # 902001 prices

• $58.00-$96.44

specifications vesselvent:

• brand: Forespar
• part type: Valve
• manufacturer part number: 902001

shipping vesselvent:

• transit: 5-9 Days
• cost: $0.00
• type: Fixed
• service: Standard
• class: Standard

offer vesselvent:

• sold: 0
• quantity: 1
• availability: In Stock
• started: December 28, 2025
• options: Ship-to-home

payments vesselvent:

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

seller vesselvent:

• # reviews: 5357
• rating: 100.0%

general vesselvent:

• condition: New other see details
• Parts Accessories > Boat Parts > Plumbing Ventilation

returns vesselvent:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

Forespar 902001 Is Similar To:

• Forespar 904046abyc Boat Seacock Valve Thru Hull 1 1/2 Inch Marelon (31.1% similar) $143.52–$157.38. (August 29th, 2024)
• Forespar Performance Products 903002 F Orespar Mf 841 Vent Cap Assembly - Marelon Vented Loop Marine Plumbing (32.8% similar) $13.94–$18.87. (September 2nd, 2024)
• Forespar 903001 Mf 842 Vented Loop 3/4 Inch - High Performance (46.2% similar) $25.99–$29.99. (September 2nd, 2024)
• Forespar 905102 1 Ball Valve - High-quality Marine Grade (43.5% similar) $99.75–$128.63. (September 3rd, 2024)
• Forespar 904010 3/4 Inch Flange Mounting Seacock Valve Fitting For Boat And Marine (44% similar) $69.99–$81.61. (September 6th, 2024)
• Forespar Products Corp. 906024 Thru-hull 3/4 Inch Hose Tailpipe Mushroom Head (38.6% similar) $12.00–$27.00. (September 7th, 2024)
• Forespar 905101 Marelon Full Flow Ball Valve 3/4 Inch Black Marine Boat (51.8% similar) $33.75–$67.69. (September 18th, 2024)
• Forespar 937344mc Boat Seacock Valve Mushroom Screen 1 Inch Marelon (28.1% similar) $94.99. (September 20th, 2024)
• Forespar 931336 Marelon By 1-1/2 Inch Sea Valve - Thread Both Ends (58.2% similar) $34.00–$157.50. (September 21st, 2024)
• Forespar Performance Products 903008 Mf 845 Vented Loop - 1/2 Inch (34.3% similar) $36.00–$37.11. (September 24th, 2024)
• Forespar 931356r-5np Boat Ball Valve Flange 90 Degree 1 1/2 Inch (40.9% similar) $107.96–$162.37. (September 25th, 2024)