Reduce Bore Trunnion Mounted Ball Valve

LYV’s reduce bore trunnion mounted ball valves are preferred because of their high safety and competitive price. We produce the valves for big size and high working pressure to Southeast Aisa, Middle Eest, Russia, ets. Normally a reduce bore valve is about 30% lighter relative to the same size full bore ball valves, the reduce bore trunnion mounted ball valves can ensure the pipeline safe operation and also ensure the purchase cost for the whole pipeline system.

Trunnion Mounted Reduced Bore Ball Valve is designed with Double block and bleed or double piston type which is equipped with sealant injection system for both stem and seats to body cavity, so that it can drain from both upstream and downstream ends, to prevent seat or stem leakage.

Design & Testing International Standard:

Design Standard : ISO 14313/ ASME B 16.34 /API 6D

Inspection & Testing Standard : API 598/ API 6D

Fire Safe Testing Standard : API 607/API 6FA

Flange To Flange Length : ANSI B 16.10 -Short pattern/ Long pattern

End Connection : Flanged End to ANSI B 16.5, Butt Weld ends, Stock Weld ends.

Manufacturer Size and Pressure Range:

NPS 2” to 48 ” (for ANSI Class 150LB)

NPS 2” to 48” (for ANSI Class 300LB)

NPS 2” to 48” (for ANSI Class 600LB)

NPS 2” to 36” (for ANSI Class 900LB)

NPS 2” to 24” (for ANSI Class 1500LB)

NPS 2” to 12” (for ANSI Class 2500LB)

Pipe Bore: Reduce Bore(RB)

Construction Body: End Entry

Bonnet/Cover type: Bolted Bonnet/Extended Bonnet

Seat Type: Soft type/ Hardseal Metal Type

Flow Directional: Uni-Directional/Bi-Directional

Service Medium: Natural Gas, Oil, Water, Oxygon gas, etc

Service: SOUR, ISO 15156/ NACE MR0175

Fugitive Emission: ISO 15848

Feature: Fire Safety design

Anti-Static Design

Blow-out Proof Stem

Double block and bleek design

ISO 5211 Mounted IPAD

Valve Operation: Manual Lever / Worm-Gear /Actuator Operated/ Pneumatic Actuator / Motor Actuator

MOC (Bill of Material – BOM) :

Body &Bonnet: ASTM A 216 GR. WCB /ASTM A105N (Carbon steel)

: ASTM A352 LCB / LCC /ASTM A350 LF2 (Low temp. carbon steel)

: ASTM A 351 GR. CF 8 / CF 8M (SS 304 / SS 316) (Stainless Steel)

:ASTM A 351 GR. CF 3 / CF 3M (SS 304L / SS 316L) (Stainless Steel)

: ASTM A351 Gr. CF8C

: ASTM A890 4A / 5A/ 6A (Duplex Stainless Steel)

Solid Ball : ASTM A105N+ENP/ A105N+TCC

: ASTM A 182 F304 / F316 (SS 304 / SS 316)

: ASTM A 182 F304L / F316L (SS 304L / SS 316L)

: ASTM A 182 F347

: ASTM A182 F51/ F53 /F55

Note: Harseal Metal Seat type Ball surface treatment: ENP, HCR, WC, welding Ni60/ Ni55

Stem : ASTM A182 F6a

:ASTM A182 F304 / F316 / F304L / F316L

:17/4 PH

: ASTM A182 F51/ F53/ F55

Metal Seat Ring: : ASTM A105N+ENP/ A105N+TCC

: ASTM A 182 F304 / F316 (SS 304 / SS 316)

: ASTM A 182 F304L / F316L (SS 304L / SS 316L)

: ASTM A 182 F347

: ASTM A182 F51/ F53 /F55

Note: Harseal Metal Seat type Seat Ring surface treatment: ENP, HCR, WC, welding Ni60/ Ni55

Seat sealing : PTFE Virgin / 25% Glass Fillted PTFE – GFT / Carbon Filled PTFE – CFT

: PEEK / Delrin / Grafoil – Graphite Ring

Gland Packing : PTFE Virgin / 25% Glass Filled PTFE – GFT / Carbon Filled PTFE – CFT

: Grafoil – Graphite Ring

What is a reduced bore ball valve?

A reduced bore ball valve is a type of ball valve that the valve’s inside bore diameter is smaller than the pipe diameter, while the valve’s flange dimension is still match with the pipe diameter. The working requirement is that is a turbulence and fluid flow rate are not major concerns and where buildup of particles is not likely to occur, to avoid valve blockage.

With a smaller insider diameter, the valve housing and ball size are also smaller, so that the reduce bore ball valve occupy a smaller volume, which make it consumes a smaller space during installation. What’s more, the material for a smaller housing and ball charge a lower material cost, to affects the final products cost, to reduce the whole cost of the pipeline system.