1 plug valve

3 inch plug valve

3 plug valve

6 inch plug valve

8 inch plug valve

8 plug valve

lined plug valve

plug valve

DN25-PN25 Close Die Forged Plunger Valves

DN25-PN25 Close Die Forged Plunger Valves

Size DN25 (1 inch)
Pressure Class PN25 (25 bar / 360 PSI)
Body Material Forged Carbon Steel (A105) / Forged Stainless Steel (A182 F304/F316) User specified
Manufacturing Process Close Die Forged (Precision Forging)
Design Standard DIN 3356 / EN 13709 / ASME B16.34 (adaptable)
End Connection Standard EN 1092-1 (Flanged) / ASME B1.20.1 (NPT) / ASME B16.11 (SW) / ASME B16.25 (BW)
Face to Face Standard EN 558-1 / DIN 3202 F1 (for flanged)
Test & Inspection Std. EN 12266-1 / API 598
Leakage Class Zero leakage (soft seal)

  • aboutimg3
  • aboutimg4
  • aboutimg5

 

TECHNICAL DATA SHEET

Product Name: DN25 PN25 Close Die Forged Plunger Valve
Model/Specification: DN25-PN25-PLUNGER
Type de vanne : Plunger Valve (Piston-Type Stop Valve)
Connection Type: Flanged (RF) / Threaded (NPT) / Socket Weld / Butt Weld User specified

  1. Basic Design Parameters

Paramètre

Standard/Specification

Taille

DN25 (1 inch)

Pressure Class

PN25 (25 bar / 360 PSI)

Matériau du corps

Forged Carbon Steel (A105) / Forged Stainless Steel (A182 F304/F316) User specified

Manufacturing Process

Close Die Forged (Precision Forging)

Design Standard

DIN 3356 / EN 13709 / ASME B16.34 (adaptable)

End Connection Standard

EN 1092-1 (Flanged) / ASME B1.20.1 (NPT) / ASME B16.11 (SW) / ASME B16.25 (BW)

Face to Face Standard

EN 558-1 / DIN 3202 F1 (for flanged)

Test & Inspection Std.

EN 12266-1 / API 598

Classe de fuite

Zero leakage (soft seal)

  1. Technical Specifications

Paramètre

Details

Type de vanne

Plunger Valve (Piston Valve) – Guided plunger design

Bonnet Type

Bolted Bonnet

Stem Type

Outside Screw and Yoke (OS&Y), Rising Stem

Plunger Type

Polished cylindrical plunger, one-piece forged

Sealing Principle

Elastic sealing rings (graphite/PTFE) compressed by plunger – metal-to-soft seal

Sealing Rings

Two-piece set (upper & lower) for positive shut-off

Applicable Media

Steam, Hot Water, Oil, Gas, Corrosive Fluids (depending on material)

Plage de température

-29°C to +300°C (with PTFE rings) / up to 450°C (with flexible graphite)

Opération

Handwheel (standard) / Gearbox / Actuator

  1. Material of Construction (Recommended – Carbon Steel)

Part Name

Matériel

Standard/Grade

Corps

Forged Carbon Steel

ASTM A105

Bonnet

Forged Carbon Steel

ASTM A105

Plunger

Stainless Steel (Hardened)

ASTM A276 420 / A182 F304 (Chrome plated optional)

Sealing Rings

Flexible Graphite / PTFE

Graphite for high temp, PTFE for chemical service

Tige

Stainless Steel

ASTM A182 F6a (13Cr) / A276 420

Gland Packing

Flexible Graphite / PTFE

As backup seal

Bonnet Gasket

Spiral Wound

Stainless Steel + Graphite

Stem Nut

Aluminum Bronze

C95400 / CuAl10Fe3

Body Bolts/Nuts

Alloy Steel

ASTM A193 B7 / A194 2H (for CS) or A193 B8 / A194 8 (for SS)

Handwheel

Malleable Iron / Carbon Steel

A197 / A216 WCB

*For Stainless Steel version (A182 F304/F316), bolting changes to B8/8, body/bonnet to SS.*

  1. Main Dimensions & Connection Details

*Note: Dimensions for Flanged Ends (RF) according to EN 1092-1 and EN 558-1. Other end connections vary.*

4.1 End-to-End Dimensions (Face-to-Face)

Taille

PN Rating

L (mm)

H (approx. mm)

W (Handwheel mm)

Weight (approx. kg)

DN25

PN25

160

~180

125

~4.5

4.2 Flange Details (Per EN 1092-1 – Type 11 / PN25)

Paramètre

DN25 Flange

Flange Outside Diameter (D)

115 mm

Bolt Circle Diameter (PCD / k)

85 mm

Number of Bolt Holes

4

Bolt Hole Diameter (d2)

14 mm

Bolt Thread Size

M12

Raised Face Height

2 mm

Flange Thickness (C)

16 mm

4.3 End Preparation (Alternative Connections)

Connection Type

Standard

Details

Threaded (NPT)

ASME B1.20.1

1″ NPT Female

Socket Weld (SW)

ASME B16.11

1″ Socket Weld per standard

Soudure bout à bout (BW)

ASME B16.25

Bevel prepared ends

  1. Pressure-Temperature Rating

*Material Group: Carbon Steel (A105) or Stainless Steel (F304/F316) – Sealing rings limit temperature.*

Temperature (°C)

Max. Working Pressure (bar)

Notes

-29 to 120

25

Full rating (PTFE rings)

150

24

 

200

23

(Graphite rings)

250

22

(Graphite rings)

300

20

(Graphite rings)

350

18

(Graphite rings – high temp)

400

16

(Graphite rings)

Note: With PTFE rings, max temperature 200°C. With graphite rings, max 450°C (but PN rating derated at higher temps).

  1. Test Pressure (EN 12266-1 / API 598)

Test Type

Medium

Pressure (bar)

Acceptance Criteria

Shell Test (Hydrostatic)

Water

38

1.5 x PN (no visible leakage)

Seat Test (High Pressure)

Water

27.5

1.1 x PN (zero leakage)

Seat Test (Low Pressure)

Air / N2

5.5 – 6

Bubble-tight

  1. Features & Applications
  • Key Features:
    • Zero Leakage Design: Elastic sealing rings compressed by the polished plunger ensure bubble-tight shut-off, exceeding metal-seated valve performance .
    • Close Die Forged Body: Provides superior strength, uniform grain flow, and absence of porosity – ideal for demanding service .
    • Self-Adjusting Seals: The sealing rings compensate for wear and thermal variations, maintaining a tight seal over extended life .
    • Easy Maintenance: Sealing rings can be replaced without removing the valve body from the pipeline (with top-entry bonnet) .
    • Excellent Throttling Capability: The plunger design allows for smooth flow control with minimal erosion .
    • Double Seal Protection: Two independent sealing rings provide redundancy .
    • Corrosion & Wear Resistance: Hardened stainless steel plunger resists scratching and corrosion .
    • Backseat Design: Protects stem packing when valve fully open .
    • OS&Y Design: Visual indication of valve position .
  • Main Applications:
    • Steam Systems: Steam distribution, boiler blowdown, tracer lines .
    • Thermal Oil / Heat Transfer Fluids: High-temperature liquid services .
    • Chemical Processing: Handling corrosive fluids with PTFE sealing rings .
    • Water & Wastewater: Isolation and control where zero leakage is required .
    • Oil & Gas: Light hydrocarbon services .
    • General Industrial Piping: Reliable shut-off for gases and liquids .

Disclaimer: The above data is prepared based on common industry standards (DIN/EN) for forged plunger valves. Specific dimensions, materials, and pressure ratings may vary by manufacturer. The final technical agreement and certified drawings shall prevail.

GARANTIE :

SAVVY VALVES s'engage à fournir des produits d'une qualité exceptionnelle et un service après-vente sans souci. Nos vannes sont garanties pour une durée de vie minimale de 12 mois, période durant laquelle nous fournissons gratuitement toutes les pièces de rechange nécessaires et des instructions d'entretien détaillées. Pendant la période de garantie, en cas de dommage non causé par l'homme, nous remplaçons gratuitement les composants et fournissons une assistance technique professionnelle. Après l'expiration de la garantie, seuls les pièces de rechange sont à votre charge, tout en bénéficiant de services de maintenance à prix réduits. Notre objectif est d'aider nos clients à réduire leurs coûts d'exploitation et à optimiser leur production grâce à une qualité fiable et un service après-vente complet. Qu'il s'agisse de questions techniques ou de besoins de maintenance, notre équipe d'experts répondra rapidement pour garantir le fonctionnement optimal de votre système de vannes.

Si vous êtes intéressé par nos produits, vous pouvez choisir de laisser vos informations ici et nous vous contacterons sous peu.