4″ 150LB Hypalon Fully Lined Diaphragm Valve

Flow Path Design Straight-Through (Non-Weir) ∙ Bore: 85–90% of nominal pipe ID
Size Range DN50 to DN200 (2″ to 8″)
End Connections • Flanged (EN 1092-1 Type A) ∙ ANSI Class 150
• Optional: Lug/Wafer
Flow Coefficient DN100 (4″): Cv ≈ 120 (vs. 180 for full-bore)
Pressure Drop ΔP ≈ 0.3–0.8 bar (water, 2 m/s flow)
Actuation Manual Handwheel ∙ Pneumatic (Spring-Return) ∙ Electric (On/Off)
Certifications PED 2014/68/EU (Cat. II) ∙ ISO 9001 ∙ EN 10204 3.1

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Straight-Through Diaphragm Valve Technical Datasheet

(Non-Weir, Reduced-Bore Design)
Compliance: BS5156 ∙ Bahan: Ductile Iron + Full EPDM Lining

Komponen	Material & Specification	Key Properties
1. Valve Body	Ductile Iron (EN-GJS-400-18/GGG40) • Full Internal Lining: EPDM (3 mm min. thickness)	• Pressure Rating: PN10/PN16 • Lining Adhesion: ≥ 5 MPa (ISO 4624) • Corrosion Protection: Full EPDM barrier
2. Disc	Ductile Iron (GGG40) • EPDM-Encapsulated	• Reduced-Bore Design: 85–90% of pipe ID • Abrasion-Resistant Surface
3. Stem	AISI 316L Stainless Steel • Mechanically Polished (Ra ≤ 1.6 μm)	• SSC-Resistant (NACE MR0175) • Hardness: 140–180 HB
4. Diaphragm	Hypalon • Polyester Fabric Core	• Temp Range: -20°C to +130°C • Cycle Life: ≥ 50,000 cycles
5. Bonnet	Ductile Iron + Full EPDM Lining	• Bolted Design (EPDM-Coated Bolts)
6. Seals	EPDM O-Rings/Gaskets	• Bubble-Tight Shutoff (ISO 5208 Rate A)

Critical Technical Data

Parameter	Spesifikasi
Flow Path Design	Straight-Through (Non-Weir) ∙ Bore: 85–90% of nominal pipe ID
Size Range	DN50 to DN200 (2″ to 8″)
End Connections	• Flanged (EN 1092-1 Type A) ∙ ANSI Class 150 • Optional: Lug/Wafer
Flow Coefficient	DN100 (4″): Cv ≈ 120 (vs. 180 for full-bore)
Pressure Drop	ΔP ≈ 0.3–0.8 bar (water, 2 m/s flow)
Penggerakan	Manual Handwheel ∙ Pneumatic (Spring-Return) ∙ Electric (On/Off)
Certifications	PED 2014/68/EU (Cat. II) ∙ ISO 9001 ∙ EN 10204 3.1

Straight-Through vs. Full Bore: Key Differences

Feature	Straight-Through Valve	Full-Bore Valve
Bore Diameter	85–95% of pipe ID	100% of pipe ID
Flow Efficiency	Moderate (Cv ≈ 65% of full-bore)	Maximum (No restriction)
Slurry Handling	Good (Less clogging than weir-type)	Excellent (Zero clogging risk)
Mechanical Strength	Higher (Thicker walls due to reduced bore)	Lower (Thinner walls to match pipe ID)
Cost	Lower (Less material)	Higher

Design Advantages of Straight-Through Configuration

Optimized for Slurries & Viscous Fluids

Smooth, obstruction-free flow path prevents particle buildup (e.g., wastewater sludge, pulp).

Robust Pressure Containment

Thicker ductile iron walls (enabled by reduced bore) withstand surge pressures up to 1.5×PN.

Simplified Maintenance

Top-entry diaphragm replacement (no pipe disassembly).

Cost-Effective Corrosion Protection

Full EPDM lining isolates ductile iron from corrosive media (pH 3–12).

Limitations & Design Notes

Not Pigable: Reduced bore prevents pipeline pigging.
Chemical Limits: EPDM incompatible with oils, aromatics, concentrated acids (>20% H₂SO₄).
Suhu: Max. 130°C (EPDM) – derate pressure above 80°C.
Actuator Sizing: Higher torque required vs. weir-type due to larger diaphragm area.

JAMINAN:

SAVVY VALVES komited untuk menyampaikan kualiti produk yang luar biasa dan perkhidmatan selepas jualan tanpa bimbang. Injap kami dijamin memberikan hayat perkhidmatan minimum selama 12 bulan, di mana kami akan membekalkan semua alat ganti yang diperlukan dan arahan penyelenggaraan terperinci secara percuma. Dalam tempoh jaminan, jika sebarang kerosakan bukan disebabkan oleh manusia berlaku, kami akan menggantikan komponen tanpa kos dan menyediakan sokongan teknikal profesional. Selepas jaminan tamat, pelanggan hanya perlu membayar kos alat ganti, sementara masih mendapat manfaat daripada perkhidmatan penyelenggaraan berdiskaun. Matlamat kami adalah untuk membantu pelanggan mengurangkan kos operasi dan meningkatkan kecekapan pengeluaran melalui kualiti yang boleh dipercayai dan sokongan selepas jualan yang komprehensif. Sama ada untuk pertanyaan teknikal atau keperluan penyelenggaraan, pasukan pakar kami akan bertindak balas dengan segera untuk memastikan sistem injap anda mengekalkan prestasi optimum pada setiap masa.

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