BS5152 Globe Valve Metallic Seat PN16 flange type globe valve

Working Pressure:16kg/cm²
Shell Test Pressure:24kg/cm²
Seat Test Pressure:18kg/cm² 
Media:Water,Neutral Oil
Working Temperature:0-52°C

100％ Fusion Bonded Epoxy Coating for Inner and Outside Surface

Flange Drilled According to EN1092 PN10,PN16

Size:DN50--DN300

When You Need Flow Control, Not Just On/Off — The Globe Valve Difference

Gate valves open and close. Ball valves turn a quarter turn. Butterfly valves swing a disc. But when a pipeline needs flow regulation — controlled throttling, proportioning, balancing, or gradual start-up — none of those designs is designed to handle it. Open a gate valve 20% and high-velocity flow across the partly open gate will erode the seating surfaces within weeks. Use a ball valve to throttle and the seat ring will be sliced by the port edge. This is the operating regime where only a globe valve can serve. The Model 6006 BS 5152 Globe Valve with Metallic Seat is a ductile iron, flanged, PN16 rated globe valve manufactured to BS 5152, available DN50–DN300. It features a metal-to-metal seating pair — the disc face and body seat ring are both metallic — providing the wear resistance, temperature tolerance, and long throttling-service life that resilient-seat designs cannot deliver. The BS 5152 designation is the British Standard governing the design, face-to-face dimensions, pressure-temperature ratings, material specifications, and testing requirements of flanged globe valves — specifying to BS 5152 gives engineers and contractors confidence that the valve conforms to a documented, internationally recognised standard for every critical dimension and material property. Manufactured by Shandong Huaze Valve Co., Ltd. (ISO 9001, since 1998), the 6006 is the valve you specify for pump discharge flow control, bypass circuits, drain-down lines, and any application where the valve is expected to do its work at intermediate positions — not just fully open or fully closed.

Product Overview

The Model 6006 is a straight-pattern, rising-stem, bolted-bonnet flanged globe valve manufactured to BS 5152, PN16 rated, in sizes DN50 (2") through DN300 (12"). The body and bonnet are cast from EN-GJS-500-7 (GGG50) ductile iron — a material with 500 MPa tensile and 7% elongation that combines the casting economics of iron with the toughness and impact resistance of steel. The disc and seat ring are metallic (stainless steel and/or bronze), forming a metal-to-metal seating pair that seals reliably under the full range of PN16 operating pressures while withstanding the mechanical wear of repeated throttling cycles. The disc is guided by the bonnet bore throughout its entire travel, ensuring perfect alignment with the seat ring at every position — open, closed, and every intermediate position in between. A rising stem with external thread provides visual indication of valve position at a distance — a practical safety feature that eliminates the guesswork of "is the gate up or down?" that plagues non-rising stem designs. All internal iron surfaces receive 100% fusion bonded epoxy coating at 250 um DFT, spark-tested at 3 kV. Every 6006 is shell-tested at 24 bar, seat-tested at 18 bar, and verified for full-stroke operation before dispatch.

Gate Valve vs Globe Valve — Know When to Specify Each

Key Features

Metallic Seat — Metal-to-Metal Sealing for Throttling Durability

The single most important design decision in a globe valve is the seat material — and the 6006's metallic seat pair (stainless steel disc face against a bronze or stainless body seat ring) is the correct choice for throttling service. Here is why: when a globe valve partially opens to regulate flow, the disc sits at an intermediate position, just off the seat, creating a narrow annular gap. The entire pressure drop occurs across this gap, driving flow velocities that can reach 10–30 m/s. If the disc or seat were resilient (rubber or EPDM), this high-velocity jet would quickly erode the soft material, destroy the seal, and embed fragments in the downstream piping. A metallic seat pair — two materials of comparable hardness — can withstand this continuous impingement. The disc lands on the seat when closed and creates a positive metal-to-metal shut-off. It lifts off the seat during throttling without damaging either surface. And after thousands of cycles, the seat ring can be resurfaced or replaced — restoring full performance without replacing the entire valve. This is the fundamental engineering advantage that makes the 6006 suitable for flow control applications where a resilient-seated valve would fail within months.

BS 5152 Design Compliance — Documented Quality for Critical Service

The 6006 is manufactured to BS 5152 — the British Standard for flanged globe valves. This is not a marketing label; it is a design specification with mandatory requirements for every dimension, every material, and every test. Face-to-face dimensions conform to BS 5152 Series 1 (short pattern) — the body length from flange face to flange face is standardised, guaranteeing interchangeability with any other BS 5152 globe valve regardless of manufacturer. Stem diameter is specified as a function of valve size, ensuring the stem will transmit operating torque without twisting failure. The gland and stuffing box dimensions are specified to accommodate standard packing sizes — a maintenance advantage: the packing can be replaced with off-the-shelf gland packing rings from any industrial supplier, not a proprietary set only available from the original valve manufacturer. The bonnet flange thickness, bolt size, and bolt circle are specified to retain the pressure-retaining joint integrity at the full PN16 rating. Pressure-temperature ratings follow BS 5152's defined envelope — the valve's maximum allowable pressure at its maximum rated temperature is a documented, calculable value, not an estimate. For the specifier, BS 5152 means confidence. For the inspector, it means a clear checklist. For the operator, it means spare parts and replacement valves that fit first time.

Disc-Guided Design — Perfect Alignment at Every Position

Globe valve disc alignment is critical — if the disc lands off-centre on the seat ring, it will leak. If the disc wobbles during throttling at an intermediate position, vibration and noise will increase. The 6006 uses a disc-guided design: the disc is attached to the stem and the disc periphery is guided by the precision-machined bore inside the bonnet. This means the disc's lateral position is controlled throughout the entire stroke — it cannot wobble, tilt, or shift sideways even when the stem is extended at a partial opening. When the handwheel is turned to close, the disc descends in a straight line and lands squarely on the seat ring — every time. When the handwheel is turned to throttle, the disc maintains its coaxial alignment with the seat, producing a uniform annular gap around the full circumference — the flow is symmetrical, not an off-centre jet that creates unbalanced loading on downstream fittings. This guided, linear motion is the hallmark of a properly designed globe valve and a key contributor to the 6006's long service life in throttling applications.

Rising Stem with External Thread — Visible Position Indication

"Is it open or closed?" This question never needs to be asked about the 6006. The rising stem design with external thread makes the valve position visible from across the pump station. The stem rises from the bonnet as the handwheel is turned anti-clockwise — the higher the stem, the more open the valve. A fully extended stem means the valve is fully open. A stem flush with the handwheel boss means the valve is fully closed. No guesswork, no ambiguous indicator dials, no electrical signal required. When an operator is balancing a bank of valves on a pump station manifold — setting each discharge valve to a different throttling position to achieve the desired flow split — the rising stem on each 6006 gives an immediate, intuitive visual reference of each valve's setting. This is a practical operational advantage that saves time during commissioning and provides passive safety confirmation during routine inspections.

Wide Size Range DN50–DN300 — One Standard, Any Pipe Size

The 6006 covers DN50 (2") through DN300 (12") — the size range that spans the vast majority of water, wastewater, process, and HVAC flow control applications. A small DN50 globe valve may serve as a pump bypass or drain valve. A medium DN100–DN150 globe valve may control the flow from a main pump into a distribution header. A large DN200–DN300 globe valve may serve as the flow control point for a treatment plant inlet or the throttling valve on a pump station discharge manifold. By standardising on the 6006 series across all sizes, the specifier gets consistent material specifications, consistent face-to-face dimensions (to the same standard), consistent pressure ratings, consistent testing, and consistent maintenance procedures — from the smallest 2" valve in the corner of a pump room to the largest 12" valve dominating the manifold. This standardisation reduces inventory complexity, simplifies maintenance training, and ensures that any technician who can service a DN50 6006 can also service a DN300 6006.

Bolted Bonnet — Serviceable Without Removing Body from Pipe

The 6006's bonnet is secured to the body by a bolted flange joint — stainless steel A2-70 studs and nuts around the full bolt circle, compressing a full-face gasket seated in a machined groove. This design provides two key maintenance advantages. First, the bonnet can be removed for internal inspection without disturbing the body-to-pipe flange connections — the valve body stays bolted into the pipe, the operator simply removes the bonnet fasteners and lifts the bonnet/stem/disc assembly as a single unit. Second, disc resurfacing or seat ring replacement can be performed on the disassembled assembly on a workbench, not in the confined space around the valve. And because all bonnet fasteners are stainless steel A2-70, they will not be seized by rust years later when it is time for a planned maintenance intervention — the nuts turn freely with standard spanners, no cutting or heating required.

Materials of Construction

Technical Data

Applications — Where the 6006 Globe Valve is the Correct Specification

• Pump Discharge Flow Control: The canonical globe valve application. A globe valve on the discharge side of a pump allows the operator to throttle the flow — not just isolate it. During commissioning, the valve can be cracked open to slowly fill the downstream pipe and prevent water hammer. During normal operation, it can be set to a specific position to trim the pump operating point to the system curve, managing flow rate without a variable speed drive.
• Bypass Circuits Around Main Isolation Valves: Large gate or butterfly valves on main pipelines create enormous differential pressure when first opened against an empty downstream pipe. A small globe valve in a bypass line around the main valve allows the downstream pipe to be pressurised slowly — the globe valve's throttling capability matches this application precisely. Once pressure is equalised across the main valve, it can be opened safely with minimal torque. The 6006 is available from DN50 for exactly this role.
• Drain-Down Lines and Scour Connections: Drain lines from water mains, reservoir outlets, and filter backwash lines frequently need to control flow rate — too fast and you risk scouring the receiving drain or overwhelming downstream drainage. A globe valve on the drain connection gives the operator precise control, from a trickle for sampling to full-open for rapid draining. The metallic seat withstands the inevitable suspended solids in drain water far better than a soft-seated ball valve.
• Boiler Feed Water and Steam Ancillary Systems: Boiler feed water supply lines require precise flow control to maintain drum level. The 6006's metallic seat and guided disc provide the stable, repeatable throttling characteristic that an automatic level control valve needs in its bypass line (manual control during level transmitter maintenance or failure). The rising stem provides immediate visual confirmation of bypass valve position.
• Water Treatment Plant Chemical Dosing Lines: Chemical dosing at treatment plants — coagulant, polymer, pH adjustment — requires flow rates far below the pipe's full capacity. A globe valve downstream of the dosing pump discharge provides fine throttling capability for setting and holding the required dose rate. The FBE coating on all internal surfaces provides resistance to the full range of water treatment chemicals.
• HVAC Chilled and Hot Water Flow Balancing: Large commercial HVAC systems with multiple chillers, cooling towers, and air handling units require flow balancing between parallel branches. Globe valves on each branch allow the commissioning engineer to set branch flow rates independently — the rising stem makes the setting of every valve visible in a single walk-through inspection of the plant room, and the thread provides mechanical memory of the set position.

Quality Assurance

• 100% Shell Hydrostatic Test — 24 bar, 60 sec hold — every valve body and bonnet assembly
• 100% Seat Leak Test — 18 bar, zero leakage — verified metal-to-metal seal — every valve
• 100% Back Seat Test — Stem fully extended — zero leakage past back seat — every valve (allows packing replacement under pressure)
• 100% Packing Leak Test — Stem under pressure — zero stem leakage at gland — every valve
• 100% Operational Test — Full stroke, open to closed — smooth operation, no binding — every valve
• 100% FBE Coating DFT Verification — Minimum 250 um, all internal and external surfaces — every valve
• 100% Spark Test — 3 kV continuous holiday detection — every valve
• 100% Dimensional Inspection — Face-to-face to BS 5152, flange drilling to EN1092, stem diameter, handwheel size
• 100% Flow Direction Arrow Verification — Arrow orientation confirmed correct on every body
• EN 10204 3.1 Material Certificates — Available on request for body, bonnet, disc, stem, and seat ring

Ordering Information

About Shandong Huaze Valve Co., Ltd.

Established 1998 in Qingdao, China. ISO 9001 certified manufacturer with 100–200 employees, 300 containers annual production capacity, and USD 5–6 million annual turnover. Huaze manufactures a comprehensive range of pipeline products for water, wastewater, fire protection, HVAC, irrigation, process water, and industrial applications: Gate Valves (DIN 3352 / EN 558, BS 5163, SANS 664), Globe Valves — BS 5152 Metallic Seat Flanged (Model 6006, DN50–DN300), Swing Check Valves — flanged and wafer (DIN, BS 5153, Silent Metallic, Silent Resilient, Corrosion-Resistant Wafer), Strainers — Y Type and T Type Basket, Air Valves — Single Air Release Threaded (4001B, 4001S), Single Air Release Flanged (4002), Integral Double (4004T), and Double Air Release Flanged (4004), Flap Valves, and Fire Hydrants. All products are individually factory-tested, coated, spark-tested, and shipped from Qingdao Port to distributors, water utilities, EPC contractors, pump OEMs, and building services contractors in 30+ countries worldwide.