BS750 Above Ground Fire Hydrant Product Introduction
The BS750 Above Ground Fire Hydrant is designed for reliable fire water supply in municipal, industrial, commercial, and infrastructure applications. Manufactured from durable ductile iron with a corrosion-resistant epoxy coating, it provides long-term performance in demanding environments. Featuring a DN100 inlet, dual DN65 outlets, and compliance with international fire protection standards, the BS750 ensures rapid emergency water access and dependable firefighting capability.
Description
Ca-Fire Protection Co.,Ltd is one of the most credible manufacturers and suppliers of bs750 above ground fire hydrant product introduction in China. Welcome to wholesale custom made fire equipment products at competitive price from our factory. Contact us for more cheap products.
Products Description
BS750
A heavy-duty above-ground fire hydrant with dual 65mm outlets and 100mm flanged inlet, engineered to GB 4452 for municipal, industrial, and campus fire suppression systems. Suitable for water supply networks rated up to 1.6 MPa.
Parameter | Value |
|---|---|
| Working Pressure | 1.6 MPa |
| Outlet Connections | 2 × DN65 |
| Nominal Inlet | DN100 |
| Height (Above Grade) | 750 mm |
| Body Material | Ductile Iron |
| Stem Material | SS304 |
Technical Specifications
Parameter | Specification | Notes |
|---|---|---|
| Model Number | BS750 | Standard above-ground type |
| Nominal Bore (Inlet) | DN100 (4") | Matching ANSI / ISO flange also available |
| Nominal Pressure | PN16 (1.6 MPa / 232 psi) | Maximum working pressure rating |
| Hydrostatic Test Pressure | 2.4 MPa (348 psi) | 1.5 × working pressure per GB 4452 |
| Outlet Ports | 2 × DN65 (2½") | Symmetrically arranged; Storz / BSP adapters optional |
| Outlet Connection Type | Push-and-Twist Locking (GB Standard) | Compatible with Chinese fire hose couplings |
| Inlet Connection | PN16 Flange, DN100 | 4-hole or 8-hole bolt pattern to GB/T 9112 |
| Height Above Grade | 750 mm (Standard) | Custom heights available: 500–1000 mm |
| Body / Bonnet Material | Ductile Iron QT450-10 | Tensile strength ≥ 450 MPa |
| Stem & Spindle | Stainless Steel SUS304 | Corrosion-resistant, low operating torque |
| Seal / O-Rings | EPDM Rubber | Operating range: –25°C to +120°C |
| Valve Operation | Handwheel, Clockwise-to-Close | Maximum operating torque ≤ 200 N·m |
| Drain Valve | Built-in Automatic Drain | Prevents freezing and water accumulation |
| Surface Coating | Red Epoxy Powder Coating | Salt spray resistance ≥ 500 hours |
| Weight | Approx. 28 kg | Standard 750 mm model |
| Working Medium | Fresh Water | Suitable for firefighting systems |
| Ambient Temperature | –25°C to +65°C | Optional cold-weather version down to –40°C |
| Design Service Life | ≥ 20 Years | Under normal installation and maintenance |
| Compliance Standard | GB 4452-2011 | Outdoor fire hydrant standard |
| Certification | CCC | Certificate available upon request |
| Available Colors | RAL 3001 Red (Standard) | Yellow or custom colors available |
| Packaging | Wooden Crate, 1 pc/crate | Export-grade seaworthy packaging |
Key Features & Engineering Highlights
Ductile Iron QT450 Body
The main body and bonnet are cast from ductile iron QT450-10, providing tensile strength ≥ 450 MPa and elongation ≥ 10%. Unlike grey iron, ductile iron resists brittle fracture under hydraulic surge, impact, and seismic loads - critical for outdoor installations exposed to vehicular traffic and ground movement.
Dual DN65 Outlet Design
Two symmetrically placed 65mm outlets allow simultaneous connection of two hose lines, doubling flow capacity for large fire events. Each outlet is fitted with a threaded cap and retention chain, preventing ingress of debris, sand, and unauthorized tampering between uses.
EPDM Sealing System
All dynamic and static seals use EPDM (ethylene-propylene-diene monomer) rubber, engineered for long-term immersion in water. EPDM maintains elasticity from –25°C to +120°C and resists UV radiation, ozone, and chlorinated water - extending seal replacement intervals to 10+ years under normal use.
SUS304 Stainless Steel Stem
The valve stem and operating spindle are machined from SUS304 stainless steel, eliminating the rust-induced seizing common in carbon steel stems. Even after years without actuation, the hydrant opens smoothly with ≤ 200 N·m torque - ensuring rapid response during emergencies.
Integrated Auto-Drain Valve
A built-in drain check valve automatically purges residual water from the barrel the moment the hydrant is shut off. This prevents ice expansion damage in sub-zero climates, making BS750 suitable for northern China, Central Asia, and other cold regions without requiring manual draining procedures.
High-Durability Powder Coat
Electrostatic epoxy powder coating in RAL 3001 Signal Red (or custom color) is applied to a pre-treated, shot-blasted surface. Adhesion Grade 0 per ISO 2409, salt spray resistance ≥ 500 hours per GB/T 4956. The finish resists chipping from impact and UV fading for 15+ years outdoors.
Typical Applications
Municipal Water Networks
Installed along public roads every 80–120 m per GB 50974 for urban fire suppression and emergency water supply access.
Agricultural machinery
Petrochemical plants, logistics parks, power stations, and heavy manufacturing where high-pressure fire water supply is mandatory.
Commercial & Residential Estates
Housing developments, shopping malls, and office parks requiring above-ground hydrants within 150 m of any building facade.
Airports & Transport Hubs
High-risk zones with strict fire code compliance requirements and need for near-instant water delivery within seconds of alarm.
Power Plants & Substations
Transformer yards and turbine halls where the hydrant must survive high-voltage electromagnetic environments without corrosion.
Forestry & Wildfire Zones
Remote areas benefiting from the hydrant's frost-drain function and robust ductile iron body that resists heat distortion.
Port & Shipyard Areas
Coastal salt-air environments where the epoxy coating's 500-hour salt spray rating protects against accelerated corrosion.
Universities & Campuses
Large campus perimeters requiring cost-effective, standards-compliant above-ground hydrant networks for building clusters.
Frequently Asked Questions
Q: Can the height be customized to suit different installation depths?
A: Yes. The standard model is 750 mm above the flanged base, but we produce custom heights from 500 mm to 1,200 mm to match the burial depth of your underground supply pipe. Please specify the required extension when ordering. Custom heights carry the same pressure rating and certifications.
Q: What flange standards are available for the DN100 inlet?
A: The standard inlet flange conforms to GB/T 9112 PN16 (4-hole or 8-hole bolt pattern). We can also manufacture flanges to ANSI 150, BS 4504, DIN PN10/16, and AS 4087 upon request. Please confirm your pipeline standard when submitting a quotation request.
Q: What power supply is required?
A: The standard BS750 has an integrated auto-drain valve that expels residual water from the barrel column when the hydrant is closed, preventing ice damage down to approximately –25°C. For extreme cold environments (–40°C or colder), we offer a deep-burial cold-climate version with an extended drain mechanism. EPDM seals are specified across all models for their low-temperature flexibility.
Q: Do you accept third-party inspection before shipment?
A: Absolutely. We routinely cooperate with SGS, Bureau Veritas, TÜV Rheinland, and CCIC inspections at our factory or at port. We will coordinate access, provide factory test reports, calibration certificates, and material certificates ahead of the inspection visit. Inspection costs are typically borne by the buyer.
Q: Can the outlet coupling be changed to Storz or BSP thread for export markets?
A: Yes. While the default outlet uses the Chinese GB-standard push-and-twist coupling (compatible with domestic fire hoses), we can supply the outlet ports with Storz couplings (common in Europe and Australia), BSP thread, NH thread (US), or other coupling types. Specify the coupling standard in your inquiry. MOQ for non-standard couplings is typically 20 units.
Our address
NO.8, YUANFENG ROAD, MEIYUAN VILLAGE, KANGMEI TOWN, NANAN CITY, QUANZHOU CITY, FUJIAN CHINA
Hot Tags: bs750 above ground fire hydrant product introduction, China bs750 above ground fire hydrant product introduction manufacturers, suppliers, factory
Send Inquiry
You Might Also Like
