Non-Rising Stem Rubber Seated Gate Valve

1. Valve Type Non-Rising Stem (NRS) Resilient Wedge Gate Valve
2. Design Standard AWWA C509, ISO 5208, BS EN 1074-1
3. Size Range DN50 to DN600 (2″ to 24″)
4. Pressure Rating PN10/PN16 (150 psi / 230 psi)
• Test Pressure: 1.5×PN (Shell), 1.1×PN (Seat)
5. Temperature Range -10°C to +80°C (Standard EPDM)
-30°C to +130°C (Optional FKM)

Description

Technical Datasheet

Parameter	Specification
1. Valve Type	Non-Rising Stem (NRS) Resilient Wedge Gate Valve
2. Design Standard	AWWA C509, ISO 5208, BS EN 1074-1
3. Size Range	DN50 to DN600 (2″ to 24″)
4. Pressure Rating	PN10/PN16 (150 psi / 230 psi) • Test Pressure: 1.5×PN (Shell), 1.1×PN (Seat)
5. Temperature Range	-10°C to +80°C (Standard EPDM) -30°C to +130°C (Optional FKM)
6. Flow Design	Full Port (100% Bore) ∙ Low Turbulence ∙ Cv: DN150 ≈ 2000
7. Body Material	Ductile Iron (EN-GJS-500-7/GGG50) ∙ Epoxy Coated (RAL 5017)
8. Wedge/Gate	Ductile Iron + Full EPDM Encapsulation (3mm min. thickness)
9. Stem	AISI 316 Stainless Steel ∙ Threaded ∙ Non-Rising Design
10. Seat Seal	EPDM Rubber ∙ Bubble-Tight Shutoff (ISO 5208 Rate A)
11. Stem Seal	EPDM O-Rings + Gland Packing (Adjustable)
12. Bonnet	Bolted Ductile Iron ∙ EPDM Gasket
13. Operation	• Handwheel (Fixed/Tamper-Proof) • Gear Operator (DN≥300) • Actuator Mounting Pad (ISO 5211)
14. End Connections	• Flanged (EN 1092-1, AWWA C207) • Mechanical Joint (AWWA C111) • Grooved (AWWA C606)

Key Features

Space-Saving Design: Stem does not rise – suitable for confined spaces.
Corrosion Resistance: Full rubber encapsulation isolates metal from fluid.
Zero Leakage: Double-sealed stem (O-ring + packing) and resilient seat.
Low Torque Operation: EPDM wedge reduces friction vs. metal seats.
Bidirectional Sealing: Equal performance in both flow directions.

GUATANTEE:

SAVVY VALVES is committed to delivering exceptional product quality and worry-free after-sales service. Our valves are guaranteed to provide a minimum service life of 12 months, during which we will supply all necessary spare parts and detailed maintenance instructions free of charge. Within the warranty period, if any non-human-induced damage occurs, we will replace components at no cost and provide professional technical support. After the warranty expires, customers only need to pay for the cost of spare parts, while still benefiting from discounted maintenance services. Our goal is to help clients reduce operational costs and enhance production efficiency through reliable quality and comprehensive after-sales support. Whether for technical inquiries or maintenance needs, our expert team will respond promptly to ensure your valve system maintains optimal performance at all times.

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