Durable Ductile Iron Flanged Ball Valve for Water Systems

• Customization: Available
• Pressure Range: PN10-16-25
• Design: DIN 3357
• Model NO.: QFBV
• Face to face: DIN 3202 F4/F5
• Flange drilling: EN 1092-2 / ISO 7005-2
• Coating: Thermoplastic Powder Epoxy
• Testing: EN 12266-1
• Marking: EN 19
• Coating Blue Color: RAL5005/5010/5015
• Transport Package: Wooden Box
• Specification: DN32-250
• Origin: China
• Production Capacity: 500000pies/Year

Product Description

The QFBV model Flange Ball Valve is a full bore quarter turn valve for an on/off application. It can be manual or automatic (electric or pneumatic). it's designed with 2 pieces, simple construction allow easy maintenance over a long working life, therefore preferred for industrial applications as well as for utility services. The variety of seats and body materials allows it to respond to multiple applications in the industry.

Testing
- Body Strength Test: BS EN 12266-1: 1.5 x PN
- Seat Tightness Test: BS EN 12266-1: 1.1 x PN ISO 5208 Rate A
- Pressure Testing: BS EN ISO 5208

Features
- Two-piece ductile iron body; full bore design .
- Floating seat, spherical seat, floating ball, and adaptive sealing. And it has a fireproof design and can be used for fire protection pipes.
- The valve seat adopts symmetrical design. Switching, installation, sealing and pressure are all non-directional
- The valve stem adopts wear-resistant bushing design to ensure low torque and long life. The self-tightening upper seal design ensures that the valve stem does not leak under high pressure.
- The upper flange complies with ISO5211 standard.
- The ball is solution treated or hard chrome plated to ensure reliable material stability and surface wear resistance, improving sealing performance and product life.
- The handle adopts positioning lock design, which is easy to install.

No.	Part Name	Material	Standard
1	Body	Ductile Iron	EN GJS500-7
2	Bonnet	Ductile Iron	EN GJS500-7
3	Ball	Stainless Steel	SS304
4	Stem	Stainless Steel	SS304
5	Packing	Rubber	PTFE
6	Hand Lever	Ductile Iron	EN GJS500-7

 
Dimensions

INCH	DN	L	D	D1	b	n-φD
						PN10	PN16
1-1/4''	32	130	140	100	19	4-φ19
1-1/2''	40	140	150	110	19	4-φ19
2''	50	150	165	125	19	4-φ19
2-1/2''	65	170	185	145	19	4-φ19
3''	80	180	200	160	19	8-φ19
4''	100	190	220	180	19	8-φ19
5''	125	325	250	210	19	8-φ19
6''	150	350	285	240	19	8-φ23
8''	200	400	340	295	22	8-φ23	12-φ23
10''	250	450	405	355	24	12-φ23	12-φ27

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