Introducing the 4″ 150 RF Blind Flange in Carbon Steel – a robust and essential component for your piping systems. This high-quality blind flange is designed to provide a secure and leak-proof seal, making it an ideal choice for various industrial applications. With its durable construction and sleek black finish, this flange not only performs exceptionally but also enhances the aesthetic of your piping setup.
Key Features
Premium Carbon Steel Construction: Crafted from high-grade carbon steel, this blind flange offers excellent strength and durability, ensuring it can withstand high pressure and temperature conditions. Its robust design makes it suitable for a wide range of applications, from oil and gas to water treatment.
150 RF Rating: With a 150 RF (Raised Face) rating, this flange is engineered to provide a reliable sealing surface that minimizes the risk of leaks. The raised face design enhances the contact area with the gasket, ensuring a tight and secure fit.
New and Painted Black: This blind flange is brand new and comes with a sleek black paint finish, providing added protection against corrosion and wear. The paint not only enhances its durability but also gives it a professional appearance, making it suitable for both industrial and commercial settings.
Easy Installation: Designed for straightforward installation, this blind flange features standard bolt holes that align perfectly with other piping components. This ease of use allows for quick assembly and disassembly, minimizing downtime during maintenance or upgrades.
Common Applications for 4″ 150 RF Blind Flange
Piping Systems: Ideal for use in various piping systems, this blind flange effectively seals off the end of a pipe, preventing the flow of fluids and gases. It is commonly used in applications where a temporary or permanent closure is required.
Oil and Gas Industry: This blind flange is a reliable choice for the oil and gas sector, where high-pressure and high-temperature conditions are prevalent. Its robust construction ensures it can handle the demanding requirements of this industry.
Water Treatment Facilities: Perfect for water treatment plants, this flange provides a secure seal that helps maintain the integrity of the system, ensuring efficient operation and preventing leaks.
Conclusion
The 4″ 150 RF Blind Flange in Carbon Steel is an essential component for anyone looking to ensure the reliability and efficiency of their piping systems. With its durable construction, easy installation, and professional appearance, this blind flange is the perfect solution for a variety of industrial applications.
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Shipping Countries:
United States (US)
Ready to ship in 1-3 business days
from United States (US)
Shipping Policy
To ensure your order is shipped safely and appropriately, we determine the shipping method based on weight, size, and handling requirements.
Parcel Shipments
Smaller items that meet standard carrier limits are shipped via common parcel carriers such as UPS, FedEx, or USPS. This is calculated for you automatically at checkout.
LTL Freight (Less-Than-Truckload)
Orders that:
Weigh over 150 lbs, or
Exceed parcel carrier size or dimensional limits
will ship via LTL freight.
LTL shipments are handled by third-party freight carriers and typically involve palletized delivery. Transit times and delivery scheduling vary depending on carrier availability, destination, and freight class.
Please note:
LTL deliveries often require a delivery appointment.
Liftgate service, limited access, or residential delivery may affect transit time and cost.
It is best to reach out to us before your purchase on items that exceed 150lbs or that are larger than 96 inches in any one direction in order to ensure that you get an accurate estimate on cost.
Full Truckload (FTL) / Specialized Freight
Large or specialized items—such as tanks, vessels, oversized equipment, or shipments requiring hazmat handling or oversized permits—are managed directly by Tri-State Supply.
These shipments may require:
Full truckload (FTL) transport
Oversized or overweight permits
Specialized carriers or equipment
Additional coordination prior to shipment
Because of this, processing and delivery timelines for full truckload or specialized freight are determined on a case-by-case basis. Our team will coordinate directly with you to confirm logistics before shipment. You will need to reach out to us for a quote. You may also arrange freight for your purchases. Loading fees, appointments, and more arrangements will still need to be agreed upon before something leaves our property.
Order Processing & Timing
Most in-stock orders are processed within 1–3 business days. Freight shipments—especially LTL and full truckload—may require additional time to schedule pickup and delivery.
Estimated delivery dates are provided as guidance and are subject to carrier and logistical factors beyond our direct control.
Questions Before You Order
If you are purchasing:
Large or heavy items
Freight-sensitive equipment
Job-site or residential deliveries
we strongly recommend contacting us before placing your order so we can help confirm the best shipping method and set clear expectations.
Tri-State Supply
Customer Support Hours
Monday–Friday, 8:00 AM – 5:00 PM CST
Please allow up to 24 business hours for a response.
Refund Policy
Tri-State Supply Corp
Return & Refund Policy
We want you to feel confident in every purchase from our store. As part of BranaBee, we follow the BranaBee Refund Policy (https://branabee.com/refund_returns/) and have added a few specifics to make returns as simple as possible.
1. Return Eligibility
We accept returns on new, unused items within 30 days of delivery, as long as the item is in a condition that allows it to be resold.
Items marked “As-Is” or “As-Is Where-Is” cannot be returned.
To qualify for a return, items must:
Be unused
Be in original or equivalent packaging
Be free from damage, installation marks, or modifications
Used or installed items are not eligible for return or refund.
2. How to Request a Return
To start a return:
Submit a return or refund request for your order.
If eligible, we will provide a return shipping label via email.
Once we receive and inspect the item, your refund will be issued to your original payment method.
3. Large, Heavy, or Freight-Shipped Items
Returns for large or freight items require special handling:
Our team will contact you to coordinate the return.
Return eligibility and logistics are handled case by case.
Timelines and costs may differ from standard parcel returns due to shipping requirements.
4. Non-Refundable Items
Used or installed items
Items returned after 30 days
Items damaged due to improper packaging or handling
5. Questions Before You Buy
For large or freight-shipped items, we recommend contacting us before ordering. This helps confirm specifications and return expectations.
For any other questions, reach out during business hours:
Monday–Friday, 8:00 AM – 5:00 PM CST
Please allow up to 24 business hours for a response.
✅ Bottom line: Our goal is to make your shopping experience smooth and worry-free. If you ever have a concern about a return, we’re here to help.
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