3″ – 5000 PSI – BW API 6A DM Mud Gate Valve

3″ – 5000 PSI – BW API 6A DM Mud Gate Valve

Nominal Size 3″ (DN 80)
Rated Working Pressure 5000 PSI (35 MPa / 345 bar)
End Connection Butt Weld (BW)
Valve Type Mud Gate Valve
Structure Rising Stem
Operation Manual (Hand Wheel Operated)
Sealing Type Metal-to-Rubber / Metal-to-Metal
Temperature Range P-U: -20°F to 250°F (-29°C to 121°C)
Service Media Drilling Mud, Water, Natural Gas, Oil, Sour Gas (H₂S/CO₂)

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3″ – 5000 PSI – BW API 6A DM Mud Gate Valve

Technical Datasheet

  1. Product Overview

The DM Mud Gate Valve is a high-performance gate valve specifically designed for drilling mud systems in the oil and gas industry. It is designed, manufactured, and tested in strict accordance with API Spec 6A. The valve features a Rising Stem structure and Bi-directional Sealing. The gate is connected to the stem via a T-slot connection, allowing the gate to float within the slot and achieve pressure-energized sealing against the resilient seat inserts on both sides, ensuring bi-directional flow shut-off.

Applications: Drilling mud circulation systems, wellhead equipment, manifolds and flowlines, crude oil and sour gas pipelines, and drilling chemical handling.

  1. Design Standards & Codes

Item

Standard / Code

Design, Manufacturing, Testing

API Spec 6A

Sour Service Design

NACE MR0175 / ISO 15156

Body / Bonnet

Forged Steel

Quality System

API Q1 Compliant

  1. Technical Specifications

پارامتر

مشخصات

اندازه اسمی

3″ (DN 80)

Rated Working Pressure

5000 PSI (35 MPa / 345 bar)

End Connection

جوش لب به لب (BW)

نوع شیر

Mud Gate Valve

ساختار

Rising Stem

عملیات

Manual (Hand Wheel Operated)

Sealing Type

Metal-to-Rubber / Metal-to-Metal

محدوده دما

P-U: -20°F to 250°F (-29°C to 121°C)

Service Media

Drilling Mud, Water, Natural Gas, Oil, Sour Gas (H₂S/CO₂)

  1. API 6A Rating Specifications

Rating Class

Available Range

توضیحات

PSL (Product Spec Level)

PSL 1, PSL 2, PSL 3

Defines testing, inspection, and NDE requirements

PR (Performance Requirement)

PR1, PR2

PR1: 2 cycles test; PR2: 160 full pressure/temperature cycles test

Material Class

AA, BB, CC, DD, EE, FF

EE and above suitable for sour service; Ring groove overlay required for > EE

Temperature Class

K, L, P, R, S, T, U, V

U class covers -18°C to 121°C (-0°F to 250°F)

  1. Materials of Construction

5.1 Body Material

  • Body & Bonnet: Forged Steel
  • Material Class Availability: DD, EE, FF (NACE MR0175 compliant for sour service)

5.2 Trim Materials

  • دروازه: Carbon Steel (Electroless Nickel Plated), Monel, Aluminum Bronze, or Nitrided Stainless Steel.
  • صندلی: Resilient seal (NBR, CNBR, or HNBR) bonded/embedded in a Stainless Steel or Carbon Steel retainer ring.
  • ساقه: Alloy Steel.

5.3 Seals

  • Primary Seal: Metal-to-Rubber (Resilient Seat Insert).
  • Body/Bonnet Seal: Metal-to-Metal.

5.4 Material Standards Compliance

  • Pressure-containing parts are integral forgings.
  • Materials selected per NACE MR0175/ISO 15156 for resistance to sulfide stress cracking.
  • Optional hard-facing overlay on sealing surfaces for erosion/corrosion resistance.
  1. Design Features

Feature

توضیحات

Double-Start Thread

Fast open/close operation with low torque requirement.

Rising Stem

Provides clear visual indication of gate position.

Bi-Directional Sealing

Floating gate design allows pressure-energized upstream/downstream seal.

Inline Repairable

Bonnet assembly can be removed quickly without removing valve body from pipeline.

Metal-to-Rubber Sealing

Proprietary seat design ensures drop-tight shut-off.

Low Operating Torque

Optional ball screw design available.

  1. Pressure-Temperature Ratings

Rated Working Pressure: 5000 PSI (35 MPa).
Temperature Class U: -18°C to 121°C (-0°F to 250°F).

Temp. Class

Min. Operating Temp.

Max. Operating Temp.

K

-60°C (-75°F)

82°C (180°F)

L

-46°C (-50°F)

82°C (180°F)

P

-29°C (-20°F)

82°C (180°F)

U

-18°C (-0°F)

121°C (250°F)

V

2°C (35°F)

121°C (250°F)

  1. Inspection & Testing

8.1 Pressure Testing

Performed in accordance with API 6A:

  • Shell Test: Hydrostatic test at 1.5 x Rated Working Pressure.
  • Seat Test: Hydrostatic and Gas seat tests (as applicable per PSL).

8.2 Non-Destructive Examination (NDE)

Based on PSL requirements:

  • PSL 1: MT or PT.
  • PSL 2: MT/PT, sample hardness testing.
  • PSL 3/3G: Full volumetric (UT/RT) and full hardness survey.

8.3 Performance Verification (PR2)

Type testing includes:

  • Hydrostatic shell test.
  • Gas seat test.
  • 160 cycle dynamic test (Open/Close) at ambient and rated temperature.
  • Torque measurement verification.
  1. End Connection Details

پارامتر

مشخصات

Connection Type

جوش لب به لب (BW)

اندازه اسمی

3″ (DN 80)

Schedule / Wall Thickness

XXH (Extra Extra Heavy)

Other Available Ends

Flanged (RF/RTJ), Threaded (NPT), Hammer Union

  1. Dimensions & Weight (Reference)

پارامتر

Reference Value

Face-to-Face Dimension

Per API 6A Standard

Center to Top (Open)

Consult Manufacturer Drawing

Hand Wheel Diameter

Consult Manufacturer Drawing

Approximate Weight

Consult Manufacturer Drawing

Note: Specific dimensions and weights for the 3″ size are subject to final manufacturer design and certified drawings.

  1. Optional Configurations
  • فعال‌سازی: Manual (Std), Gear Operator, Hydraulic, Pneumatic.
  • End Connections: BW, Flanged (RTJ/RF), NPT Threaded, Hammer Union.
  • Operation Assist: Ball Screw Stem (Reduces torque for high-pressure service).
  • Position Indicator: Sight Lens (Protects stem threads from mud/debris).
  • Material Upgrade: Higher material classes (EE, FF, HH) for extreme sour/corrosive environments.
  1. کاربردهای صنعتی
  • Drilling Mud Circulating Systems
  • Wellhead & Christmas Tree Assemblies
  • High Pressure Manifolds & Flowlines
  • Sour Crude Oil & Gas Transmission
  • Drilling Chemical Injection Systems
  1. Ordering Information

Please specify the following when ordering:

  • توضیحات: 3″ – 5000 PSI – BW API 6A DM Mud Gate Valve
  • اندازه: 3″ (DN 80)
  • رتبه‌بندی فشار: 5000 PSI
  • End Connection: Butt Weld (BW)
  • PSL: PSL 1 / PSL 2 / PSL 3
  • Material Class: DD / EE / FF
  • Temperature Class: U (or as required)
  • PR: PR1 / PR2
  • عملیات: Manual Handwheel
  • Quantity
  1. Quality & Compliance Certifications
  • API Spec 6A Monogram License
  • API Q1 Quality System Registration
  • ISO 9001:2015 Certified
  • NACE MR0175 / ISO 15156 Compliance (Sour Service)

ضمانت:

شرکت SAVVY VALVES متعهد به ارائه کیفیت استثنایی محصول و خدمات پس از فروش بدون نگرانی است. شیرهای ما حداقل ۱۲ ماه عمر مفید دارند که در این مدت، تمام قطعات یدکی لازم و دستورالعمل‌های دقیق تعمیر و نگهداری را به صورت رایگان ارائه خواهیم داد. در طول دوره گارانتی، در صورت بروز هرگونه آسیب غیر انسانی، قطعات را بدون هیچ هزینه‌ای تعویض کرده و پشتیبانی فنی حرفه‌ای ارائه می‌دهیم. پس از انقضای گارانتی، مشتریان فقط باید هزینه قطعات یدکی را بپردازند، در حالی که همچنان از خدمات تعمیر و نگهداری با تخفیف بهره‌مند می‌شوند. هدف ما کمک به مشتریان برای کاهش هزینه‌های عملیاتی و افزایش بهره‌وری تولید از طریق کیفیت قابل اعتماد و پشتیبانی جامع پس از فروش است. چه برای سوالات فنی و چه برای نیازهای تعمیر و نگهداری، تیم متخصص ما به سرعت پاسخ خواهد داد تا اطمینان حاصل شود که سیستم شیر شما در هر زمان عملکرد بهینه خود را حفظ می‌کند.

اگر به محصولات ما علاقه‌مند هستید، می‌توانید اطلاعات خود را اینجا بگذارید و ما به زودی با شما تماس خواهیم گرفت.