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Discussion History

Main Block Valve

Assembly

The full-bore valve that closes to isolate a section of pipeline. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Main Block Valve parts and their functions

7 top-level parts · 11 parts in total · full bill of materials below
Main Block Valve parts diagram: 1 valve body, 2 valve ball, 3 seat ring, 4 valve stem, 5 trunnion, 6 o-ring set, 7 sealant fitting. 11 parts in 7 top-level items.
Main Block Valve parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Valve Body 1× Welded valve body
2 Valve Ball 1× Trunnion-mounted ball
3 Seat Ring 2× Spring-energized seats
4 Valve Stem 1× Valve stem
5 Trunnion 2× Trunnion bearings
6 O-Ring Set 2× Body and stem seals
7 Sealant Fitting 2× Emergency sealant fittings

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
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Bill of materials for Main Block Valve

7 top-level lines · 7 rows shown · 11 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Valve Body pbv-valve-body 1× 1 · part
2 Valve Ball pbv-ball 1× 1 · part
3 Seat Ring pbv-seat-ring 2× 2 · part
4 Valve Stem pbv-stem 1× 1 · part
5 Trunnion pbv-trunnion 2× 2 · part
6 O-Ring Set oring-set 2× 2 · part
7 Sealant Fitting pbv-sealant-injection 2× 2 · part

Where the main block valve is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Pipeline Block Valve Station

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $5–$2k. How estimates work
VendorHQSpecialtyMOQLead time
🇮🇳Kirloskar
kbl.co.in ↗ 		Pune, IN Pumps & fluid systems 200 units 6–10 wks
🇨🇳Leo Group
leo.com.cn ↗ 		Taizhou, CN Pumps 200 units 6–10 wks
🇮🇳Shakti Pumps
shaktipumps.com ↗ 		Pithampur, IN Pumps 200 units 6–10 wks
🇨🇳CNP Pumps
cnppumps.com ↗ 		Hangzhou, CN Pumps 200 units 6–10 wks
🇮🇳Roto Pumps
rotopumps.com ↗ 		Noida, IN Pumps 200 units 6–10 wks