API 6D Monogram Licensed: No. 6D-1832
CE PED 2014/68/EU Module H: NB 2195
Oxy Oman Approved AML: OMN-QAC-862-002
ASME B16.5ASME B16.9ASME B16.11AWWA C512MSS SP-44EJMA Standards

Piping Flanges, Fittings & System Expansion Joints

ASME B16.5 Forged Flanges, Butt-Weld Fittings, Air Release Valves, and Expansion Joints for Complete Piping Skid Solutions

Large-Diameter Heavy Flanges & Piping Transition Spools
Large-Diameter Heavy Flanges & Piping Transition Spools ASME B16.5 / B16.47

Engineering Highlights

Engineering Specification Matrix

Valve Fittings & Pipeline Accessories Design & Manufacturing Scope

Manufactured strictly in compliance with international standards, backed by certified raw material heat numbers, optical emission spectrometry, and full hydrostatic pressure trials.

Flange StandardsASME B16.5, ASME B16.47 Series A / B, MSS SP-44, EN 1092-1
Flange FormatsWeld Neck (WN), Blind (BL), Slip-On (SO), Socket Weld, RTJ Facing
Pressure ClassClass 150 to 2500 (PN 16 to PN 420)
Stud Bolts & NutsASTM A193 B7 / B7M / B8 / B16 with A194 2H / 2HM / 8 Heavy Hex Nuts
Metallic GasketsSpiral Wound (SS316 / Graphite with inner/outer rings), Kammprofile, RTJ Octagonal
Expansion BellowsMulti-ply SS316 / Inconel axial and universal bellows expansion joints
✔ 100% Hydrostatic Tested
✔ EN 10204 3.1 Traceability
✔ ISO 15848-1 Low Fugitive
Product Lineup

Valve Fittings & Pipeline Accessories Core Sub-Categories & Models

Select a specialized sub-category below to inspect individual engineering models, face-to-face dimensions, torque curves, and model-specific material selections.

ASME B16.5 Forged Flanges Severe Service

ASME B16.5 Forged Flanges

A105 / F316 / F51, Class 150 - 2500, Weld Neck, Blind, RTJ high integrity.

MOC: WCB / CF8M / LCC CERTIFIED
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Pipeline Air Release Valve Severe Service

Pipeline Air Release Valve

High-capacity air release & vacuum relief valve with integrated pressure gauge.

MOC: WCB / CF8M / LCC CERTIFIED
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Expansion Bellows & Joints Severe Service

Expansion Bellows & Joints

Thermal expansion and pump vibration compensation up to +550℃ steam duty.

MOC: WCB / CF8M / LCC CERTIFIED
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Butt-Weld Piping Reducers Severe Service

Butt-Weld Piping Reducers

Concentric and eccentric heavy-wall precision butt-weld reducers to ASME B16.9.

MOC: WCB / CF8M / LCC CERTIFIED
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Engineering Reliability

Severe Service Design Advantages

How TSV Valve Fittings & Pipeline Accessories deliver continuous bubble-tight shutoff, zero fugitive emissions, and decades of operational safety in harsh operating environments.

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High-Pressure Forged Steel Flanges

Weld neck, slip-on, blind, and RTJ flanges hot-forged from certified ingots, adhering to ASME B16.5 dimensions up to Class 2500.

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Butt-Weld Piping Components

Elbows, tees, and concentric/eccentric reducers forged to ASME B16.9 with 100% bevel inspection and bevel weld-end prep.

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Automated Air Release & Vacuum Relief

Dual-orifice kinetic air valves discharge large air volumes during pipeline filling and break catastrophic pipeline vacuums.

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Multi-Ply Metal Expansion Bellows

Formed to EJMA standards to absorb thermal pipeline elongation, vibration, and seismic ground settlement.

Technical Knowledge Base

Frequently Asked Questions for Valve Fittings & Pipeline Accessories

Answers to common questions from EPC pipeline engineers, instrument technicians, and international sourcing managers.

What flange face finishes does TSV provide?

We manufacture Smooth Finish (125-250 Ra) for spiral wound gaskets and Ring Type Joint (RTJ) grooves with optical surface finishes for high-pressure gas service Class 600+.

What material grades are stocked for pipe fittings?

ASTM A105, A350 LF2, A182 F304/F316, F51 Duplex, and high-yield pipeline grades including ASTM A694 F52, F60, and F65.

How do air release valves protect liquid pipelines?

Entrained air creates air pockets that restrict flow, increase pumping power by up to 30%, and cause severe water hammer when pockets move. Air valves purge these pockets automatically.

High-Pressure Piping Systems

ASME High-Pressure Forged Fittings & Flanges CAD Blueprint

Engineering dimensions and manufacturing tolerances for TSV forged steel socket weld, threaded fittings, and ASME B16.5 pipe flanges rated Class 150 to Class 2500.

ASME High-Pressure Forged Fittings & Flanges CAD Blueprint
Figure 1: ASME B16.11 Forged High-Pressure Socket Weld & Threaded Branch Fitting Profiles

Key Engineering Mechanics & Standard Adherence

Precision-engineered components verified by finite element analysis (FEA) and witnessed hydro tests:

Forged Grain Flow Alignment

Precision closed-die forging aligns steel grain structure with stress trajectories, maximizing impact toughness at -46℃ to +450℃.

Strict Dimensional Conformity

Machined to ASME B16.11, MSS SP-79, and MSS SP-97 with rigorous thread gauge verification (NPT per ASME B1.20.1).

NACE MR0175 Compliance

Low-carbon metallurgy and controlled hardness (<22 HRC) prevent sulfide stress cracking in sour gas processing facilities.

Complete 3.1 Traceability

Direct die-stamped heat number, pressure class, material grade, and brand monogram on every single fitting.

Shop Floor Verification

Machining Precision & Certified Hydrostatic Witness

EN 10204 3.1 Traceability · 100% Tested Prior to Crate
High-Pressure Forged Components in Final Verification
High-Pressure Forged Components in Final Verification
100% Optical & Hydrostatic Witness Bench
100% Optical & Hydrostatic Witness Bench
Engineering Procurement Portal

Request a Formal Engineering Quote for Valve Fittings & Pipeline Accessories

Submit your project bill of quantities (BOQ), pipeline data sheet, or target MOC specifications. TSV's application engineering team provides certified dimensional drawings, MTC documentation, and firm export pricing within 24 hours.

* Confidentiality guaranteed. All design datasheets and technical drawings are protected under mutual NDA.