Knife Gate Valve Flange Type Series 207

Product Description

• Design Standard: MSS-SP-81
• Nominal Diameter: DN50-DN600 (2”-24”)
• Flange Connection: ASME B16.5
• Face to Face acc: MSS-SP-81
• Test STD: MSS-SP-151

Material Scope

AFFCO valve believes high quality valve starts from high quality casting,forging and other raw materials. we have profound experience in compliance with stringent material standards including NORSOK and wide variety blue chip end user specifications covering both metallic and non-metallic materials.
Increasingly, serve upstream operation conditions demanding not only primary components, but also accessories like bolting, bearing ,O-ring, packing and actuation components. AFFCO valve can cater the needs of any project specifications together with our vast network of material supply chain.

Full material range

Carbon steels

Stainless Steel

Duplex/Super Duplex

Casting and forging grades

According to your project specifications

Non-destructive testing

PMI

MPE

DPI/LPE

UT testing/Radiography

X ray /gamma ray

High specification sub-componets

Graphite material for packing

Stellite material for seat

Material standards

ASTM/EN/DIN/JIS/GB standard material for project requirement

Machining

Accuracy is ensured by high precision CNC machine and measured by CMM

Surface roughness

Surface roughness can reach Ra0.2

Design Feature

AFFCO valve, gate valve range plays a critical role in isolation service across hundreds of installations. The range can be engineered to suit your application, with body construction, material and ancillary features optimised to meet your process needs. With API600 certification in place across the range, you can be assured of outstanding reliability and sealing performance through design life of your asset.

Structure

Bolted bonnet, rising stem, wedged single disc, metal sealing surface

Packing

Flexible graphite, reliable sealing performance

Gate

Flexible wedge gate for larger size, solid wedge gate for smaller size

Stem

Integral forged design

T type connection with gate

Back seating design

Stem Nut

Copper alloy material for torque reduce

Seat

Spray welded with hard alloy specified by the customer

Dimensions

DN L D1 nxd D D0 b f H W
50 40 125 4×19 165 99 16 2 375 180
65 40 145 4×19 185 118 16 2 420 180
80 50 160 8×19 200 132 17 2 450 200
100 50 180 8×19 220 156 17 2 512 200
125 50 210 8×19 250 184 17 2 570 220
150 60 240 8×23 285 211 21 2 665 250
200 60 295 8×23 340 266 21 2 825 300
250 70 350 12×23 395 319 24 2 1000 350
300 70 400 12×23 445 370 24 2 1155 350
350 96 460 16×23 505 429 33 2 1310 400
400 100 515 16×28 565 480 35 2 1475 500
450 106 565 20×28 615 548 30 2 1630 600
500 110 620 20×28 670 609 31.5 2 600
600 110 725 20×31 780 720 36 2 600

CASE STUDIES

EXHIBITION – FLOWTECH 2024

CASE STUDIES

EXHIBITION – NEFTEGAZ 2024