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Forging Steel Welded B.B Gate Valve

Forging Steel Welded B.B Gate Valve

Forging steel welded BB gate valve is a bolt type bonnet. The valve designed according to this design form has a valve body and a bonnet connected by bolts and nuts, and a wound gasket (made of 316 clip flexible graphite). When customers have special requirements, Metal ring connection can be used.

Product Details

Products Description :

Forging steel welded BB gate valve is a bolt type bonnet. The valve designed according to this design form has a valve body and a bonnet connected by bolts and nuts, and a wound gasket (made of 316 clip flexible graphite). When customers have special requirements, Metal ring connection can be used.

 

Design Standard: 

DESIGN AND MANUFACTURE:

API 602(BS 5352)

FACE TO FACE END:

ASME B16.10 OR MANUFACTURER'S SPECIFICATION

FLANGE ENDS DIMENSIONS:

ASME B16.5

BW ENDS DIMENSIONS:

ASME B16.25

SOCKET WELD ENDS DIMENSIONS:

ASME B16.11

THREADED ENDS DIMENSIONS:

ASME B1.20.1

PRESSURE-TEMPERATURE RATINGS:

ASME B16.34

NORMAL PRESSURE

CLASS 150-1500

NORMAL DLAMETER

NPS1/2"~2"


Design Feature:

1. B.B-BOLTED BONNET OR WELDED BONNET

2. OS&Y - outside screw and yoke

3. Bolted Gland

4. Metal-graphite Spiral wound gasket between the Bonnet & Body

5. PACKING IS FLEXIBLE GRAPHITE OR OTHER MATERIALS ACCORDING TO CLIENTS REQUIREMENTS, AND A SPRING-LOADED MECHANISM CAN BE PROVIDED AS PER SPECIAL REQUIREMENTS

6. Main materials: A105, LF2, F5, F22, F304, F316, F347, F321, F51


Material Specifications:

ITEM

PART NAME

STANDARD

LOW TEMPERATURE

STAINLESS STEEL

1

BODY

A105

A350 LF2

A182 F316

2

SEAT

A105

A350 LF2

A182 F316

3

WEDGE

A105

A350 LF2

A182 F316

4

STEM

A182 F6

A182 F304

A182 F316

5

GASKET

304SS/316SS+GRAPHITE/SOFT CARBON STEEL/304SS/316SS METAL RING

6

BONNET

A105

A350 LF2

A182 F316

7

BOLT

A193 B7/B7M

A320 L7/ L7M

A193 B8M

8

STEM PACKING

GRAPHITE / PTF

9

GLAND

276 410

276 410

A276 316

10

GLAND FLANGE

A105

A350 LF2

A182 F316

11

GLAND NUT

A194 2H/2HM

A194 7/7M

A194 8

12

EYEBOLT

A193 B7/B7M

A320 L7/L7M

A193 B8

13

STEM NUT

A276 420 /Cu-ALLOY

14*

HANDWHEEL

STEEL/ DUCTILE IRON


PACKAGING & DELIVERY

Packaging details : electric actuated butterfly valve: the strong plywood cases or as per the customer's request.

Delivery details  : 4-5 weeks after receipt of down payment by T/T

Payment ： T/T, L/C, Western Union and PayPal


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