Burried Coal Tar Coated U section High Performance Butterfly Valve 60″

Valve Type Double Eccentric Butterfly Valve (High Performance)
Application Buried Service / Underground Installation
Size 60 inches (DN 1500)
Pressure Rating Class 150LB (200psi)
Connection Type Flanged Ends (ASME B16.47 Series A or B as required)
Operation Electric Actuator with Extended Stem for buried service

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Technical Data Sheet

Buried Butterfly Valve – Double Eccentric – Electric Actuator

Product Name: Buried Double Eccentric Butterfly Valve

General Information

Item	Spesifikasi
Jenis Katup	Double Eccentric Butterfly Valve (High Performance)
Aplikasi	Buried Service / Underground Installation
Ukuran	60 inches (DN 1500)
Peringkat Tekanan	Class 150LB (200psi)
Connection Type	Flanged Ends (ASME B16.47 Series A or B as required)
Operasi	Electric Actuator with Extended Stem for buried service

Design Standards & Specifications

Item	Standar
Design & Manufacturing	API 609 (Category B), ASME B16.34
Face-to-Face Dimensions	API 609, ASME B16.10
Flange Dimensions	ASME B16.47 (Series A / MSS SP-44 or Series B / API 605)
Pressure Testing	API 598
Coating Standard (Buried)	GB/T 17459 or AWWA C210 (Coal Tar Epoxy)
Actuator Mounting	ISO 5211

Main Component Materials

Part Name	Material Specification
Tubuh	Ductile Iron ASTM A536, 60-40-18 / GGG40
Cakram	Ductile Iron / Stainless Steel (Optional)
Seat (Seal)	EPDM (Ethylene Propylene Diene Monomer) – Suitable for Water/Wastewater
Shaft / Stem	Stainless Steel 410 / 17-4PH (Extended Stem for burial)
Bushings	Self-Lubricating Bronze / PTFE Lined
Body O-Rings	Buna-N / EPDM
Boltwork	ASTM A193 B7 / A194 2H (Zinc Plated)
External Coating	Coal Tar Epoxy (Thick coating for buried service)

Technical Parameters & Dimensions (Reference)

Coating Specification:

Standar: Coal Tar Epoxy conforming to AWWA C210 or GB/T 17459 .
Color: Black
Dry Film Thickness: > 300 Microns (or as required for buried service)
Feature: High electrical resistance, anti-corrosive, and resistant to soil chemicals.

Valve Dimensions (Approximate values for 60″ / DN1500):

Dimension	Value (Approx.)	Catatan
Face-to-Face (L)	600 mm – 800 mm	Dependent on API 609 Cat. B design
Flange O/D (D)	1380 mm – 1480 mm	ASME B16.47 Series A
Bolt Circle (D1)	1330 mm – 1430 mm	Dependent on flange standard
Number of Bolt Holes	48 – 56	/
Valve Height (w/o operator)	Custom	Dependent on extended stem length
Extended Stem Length	As per burial depth	Typically 2m, 3m, or as specified

Electric Actuator Specifications

Item	Requirement
Actuator Type	Heavy-duty Electric, Quarter-turn (90°)
Power Supply	380V AC / 50Hz / 3-Phase (or as specified)
Torque	≥ 1.5 x Required Valve Break Torque
Protection Class	IP68 (Watertight for buried applications)
Duty Cycle	S2 / S4 (Intermittent)
Motor Insulation	Class H / F
Manual Override	Handwheel with declutch mechanism
Limit Switch	Fully adjustable (Open/Close)
Control Type	On-Off / Modulating (4-20mA) as required

Pengujian

Shell Test: 1.5 x Rated Pressure
Seat Test: 1.1 x Rated Pressure (Bi-directional)
Leakage Rate: Zero Leakage (API 598)

Technical Notes:

Double Eccentric Design: The shaft is offset from both the centerline of the disc and the body, reducing seat wear during operation.
Extended Stem: Allows the actuator to be positioned above ground while the valve body remains buried. The stem extension is sealed to prevent ingress of moisture and soil.
Buried Coating: The coal tar epoxy provides a durable barrier against galvanic corrosion and soil stress .

JAMINAN:

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