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PN40 DN500 Figure 8 Raised Face Spectacle Blind Flange

Basic Information
Place of Origin: China
Brand Name: FLRS or OEM
Certification: ISO9001
Minimum Order Quantity: 1 piece
Packaging Details: carton/ plywood cases/plywood pallets
Delivery Time: 5-20DAYS
Payment Terms: T/T, L/C, Western union, paypal
Supply Ability: USD1-USD200/PC
Detail Information
Material: Steel Type: Figure 8
Pressure: PN6-PN40 Size: DN10-DN500
Standard: ANSI, BS, DIN, GB, ISO, JIS, JPI, ASME, GOST Surface Treatment:: As Customer Requirements
Packing: Plywood\wooden Pallets Technics: Forged
High Light:

Raised Face Spectacle Blind Flange


Figure 8 Spectacle Blind Flange


DN500 Spectacle Blind Flange

Product Description


Spectacle Bind Flange, Figure 8, Spade Blinds Flange



1. What's blind flange usage

Blind flange is used to close ends of piping systems. It is a kind of round plate with no center hold but with all the proper bolt holes. This blind flange is available in various sizes and materials and is used to provide positive closer on the ends of pipes, valves or equipment nozzles. This flange helps in easy access to A Line once it has been sealed. The blind flange is sometimes custom made or machined to accept a nominal sized pipe to which reduction is being made. This reduction can be a threaded reduction or welded reduction.

2. Features of blind flanges: Some important features of blind flanges are as follows:
Blind flanges are sometimes supplied with NPT fittings which allow pressure test connections to be fitted.
They are used to blank off the ends of pipe.
They are also used to blank off the ends of valves and pressure vessel opening.
Considering factors like internal pressure and bolt loading, blind flanges, especially in the larger sizes, are the most highly stressed of all types of flanges.
Since the maximum stresses in a blind flange are bending stresses at the center, they can safely be allowed to be higher than in other types of flanges.
Blind flanges are made to fit standard pipes in all sizes.
3. Blind flange material

Stainless Steel: ASTM A 182, A 240
Grade: F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L, Duplex stainless steel UNS S31803, 2205, Super Duplex stainless steel UNS S32750
Carbon Steel: ASTM A 105, ASTM A 181
Alloy Steel: ASTM A 182, GR F1, F11, F22, F5, F9, F91
Nickel Alloys: Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22, C276
Copper Alloys: Copper, Brass & Gunmetal
Size: 1/8" NB TO 48"NB.
Class: 150#, 300#, 400 #, 600#, 900#, 1500# & 2500 #.

4. Blind flange standard

ANSI: ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
DIN: DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
B. S: BS4504, BS4504, BS1560, BS10




PN40 DN500 Figure 8 Raised Face Spectacle Blind Flange 0

PN40 DN500 Figure 8 Raised Face Spectacle Blind Flange 1



PN40 DN500 Figure 8 Raised Face Spectacle Blind Flange 2


Assemble in pipeline

PN40 DN500 Figure 8 Raised Face Spectacle Blind Flange 3


Different use with blind flange

PN40 DN500 Figure 8 Raised Face Spectacle Blind Flange 4

Contact Details
Fiona Hou

Phone Number : 13384956386

WhatsApp : +8613384956386