1 gate valve

2 gate valve

3 gate valve

gate valve bb

afsluiters

gated y valve

gatevalves

os gate valve

os&y gate

rs gate valve

3/4″-800LB Close Die Forged Stainless Steel Gate Valve

3/4″-800LB Close Die Forged Stainless Steel Gate Valve

Design Standard API 602 / ASME B16.34 / BS 5352
Nominal Size 3/4 inch (DN20)
Pressure Class Class 800 LB (PN130)
Structure Type OS&Y (Outside Screw and Yoke), Bolted Bonnet
Connection Type NPT Threaded (ASME B1.20.1) or Socket Weld (ASME B16.11)
Operation Handwheel
Body Material ASTM A182 F316L (Forged Austenitic Stainless Steel)

Beschrijving

API 602 Forged Stainless Steel Gate Valve Technical Data Sheet

F316L Material 3/4″ 800LB NPT/Welded Ends

  1. General Information

Item

Specificatie

Kleptype

Forged Steel Gate Valve

Design Standard

API 602 / ASME B16.34 / BS 5352

Nominale grootte

3/4 inch (DN20)

Pressure Class

Class 800 LB (PN130)

Structure Type

OS&Y (Outside Screw and Yoke), Bolted Bonnet

Connection Type

NPT Threaded (ASME B1.20.1) or Socket Weld (ASME B16.11)

Operatie

Handwheel

Lichaamsmateriaal

ASTM A182 F316L (Forged Austenitic Stainless Steel)

  1. Applicable Standards

Item

Standard Code

Design & Manufacturing

API 602, ASME B16.34, BS 5352

Face-to-Face / End-to-End

Manufacturer Standard / ASME B16.10

Socket Weld Ends

ASME B16.11

Threaded Ends

ASME B1.20.1 (NPT)

Test & Inspection

API 598

Pressure-Temperature Rating

ASME B16.34

Valve Marking

MSS SP-25

  1. Main Design Features
  • Carrosseriebouw: One-piece die forged body, dense structure, high strength, no casting defects, excellent corrosion resistance
  • Bonnet Connection: Bolted bonnet design with stainless steel/flexible graphite spiral wound gasket sealing
  • Wedge Design: Solid wedge, fully guided design, minimizes wear, reliable sealing
  • Stem Design: Backseat feature allows packing replacement under pressure when valve is fully open
  • Seating Surface: Metal-to-metal seating, hardfaced or integral stainless steel seat rings for durability
  • Packing: Flexible graphite packing, low emission design
  • Seat Rings: Renewable seat rings or integral seat
  1. Main Component Materials (F316L Material)

Item

Part Name

Materiaal

Standard/Remark

1

Lichaam

ASTM A182 F316L

Forged Austenitic Stainless Steel

2

Bonnet

ASTM A182 F316L

Forged Austenitic Stainless Steel

3

Wedge

ASTM A182 F316L

Stainless Steel

4

Seat Ring

ASTM A276 316L

Hardened Stainless Steel, Renewable or Integral

5

Stang

ASTM A182 F316L

Stainless Steel

6

Gasket

316 + Flexible Graphite

Spiral Wound

7

Packing

Flexible Graphite

Low emission design

8

Gland Bushing

ASTM A182 F316L

Stainless Steel

9

Gland Flange

ASTM A182 F316L

Stainless Steel

10

Bonnet Bolt

ASTM A193 B8

Stainless Steel

11

Bonnet Nut

ASTM A194 8

Stainless Steel

12

Eye Bolt

ASTM A193 B8

Stainless Steel

13

Handwheel

ASTM A197

Malleable Cast Iron

  1. Technical Parameters & Dimensions

5.1 Pressure-Temperature Ratings

Item

Parameter

Nominal Pressure

Class 800 LB (PN130)

Shell Test Pressure

20.0 MPa (Hydrostatic) [API 598]

High-Pressure Seat Test Pressure

14.8 MPa (Hydrostatic) [API 598]

Low-Pressure Pneumatic Test Pressure

0.5 – 0.7 MPa (Air) [API 598]

Temperature Range

-29°C ~ 425°C

Applicable Media

Nitric acid, acetic acid, corrosive media

5.2 Dimensions (3/4″ Class 800 NPT/Socket Weld)

Dimension

Value

Remark

End-to-End Length (L)

92 mm

For NPT/SW ends, typical API 602 value

Height (H-OPEN)

Approx. 161 – 169 mm

Fully open position, reference

Handwheel Diameter (W)

100 mm

Reference

Socket Weld Bore (B)

28.5 mm

Socket weld inner diameter

Socket Weld Depth (S)

12.7 mm

Minimum socket depth

Threaded End

3/4″ NPT

Per ASME B1.20.1

Weight

Approx. 2.3 kg

Bolted bonnet type, reference

5.3 End Connection Details

  • NPT Threaded Ends: Per ASME B1.20.1, 3/4 inch American Standard Taper Pipe Thread
  • Socket Weld Ends (SW): Per ASME B16.11, bore dia 28.5mm, socket depth 12.7mm
  • Flow Direction: Gate valve has no flow direction restriction
  1. Test & Inspection (API 598)

Test Item

Test Pressure

Medium

Acceptance Criteria

Shell Test

20.0 MPa

Water

No visible leakage

High-Pressure Seat Test

14.8 MPa

Water

No visible leakage

Low-Pressure Seat Test

0.5 – 0.7 MPa

Air

No bubbles leakage

Test Duration

Per API 598

Hold time conforms to standard

  1. Marking & Supply
  • Valve Marking: Per MSS SP-25, nameplate to include nominal size, pressure class, material, heat number, design standard, etc.
  • Cleaning & Protection: Valves internally and externally cleaned, ends covered with protectors, threaded or weld ends coated with rust preventive
  • Documentation: Material certificates, pressure test reports, declaration of conformity provided with shipment

 

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