Gate valve extension: a steel shaft with a square top nut, a centering ring and a socket

Pictures from the SIGMA valve wrench spec sheet. The item number sets the product and the length or size.

Item # GVKCE-40 Questions and answers (4)

Valve Wrenches and Tools

Gate valve keys and curb keys, gate valve extensions, and the valve box pads and valve markers that go with them.

Priced by request

Add it to your quote list or call 800.999.2550.

Heavy duty gate valve keys, 4 to 8 ft
Gate valve extensions with centering ring, 1 to 8 ft
See all specifications

Product: Gate valve extensions

Size: 4 ft

Made: Ask your regional team

Material: As listed

As SIGMA lists it.

Your distributor

SIGMA sells through waterworks distributors. Order with item # GVKCE-40.

Quote from SIGMA

Job location

Sends your quote list to the right regional team.

Quantity

Download the valve wrench spec sheet

Need help on the job?

Call 800.999.2550 with the depth to the operating nut and what you need.

Find your regional team Documents

Everything about this item: 4 ft

Details, specs, every size and the questions buyers ask. Open what you need.

Product detailsWhat it is, highlights and documents

About valve wrenches and tools

Heavy duty gate valve keys, curb keys and gate valve extensions with a centering ring, plus valve box pads and 5 ft valve markers. Lengths and extension details are under Specifications.

Highlights

Gate valve keys, curb keys and extensions
Valve box pads and valve markers

Documents

Valve operating wrenches spec sheetPDF · August 2016

SpecificationsGate valve extensions, With centering ring, 4 ft

Gate valve extensions, With centering ring, 4 ft

Item number	GVKCE-40
Item	Gate valve extensions, With centering ring
Size	4 ft
Made	Ask your regional team
Material	As listed
Pressure rating	Not listed

Weight	Ask your regional team
Pack quantity
In the Extended Range catalog	Page

Keys and extensions

Gate valve keys	Heavy duty, 4, 5, 6 and 8 ft, as SIGMA lists them
Curb keys	4, 5 and 6 ft, as SIGMA lists them. For the curb stop size and fit, ask your regional team
Gate valve extensions	Solid steel 1 in. shaft, 2 in. top nut that fits a 2 in. operating nut, centering ring on top, per the spec sheet. 1 to 8 ft on the price list

Pads and markers

Valve box pads	14 in. round with a 6 in. hole; 24 in. round with a 10 in. hole; 24 in. square valve box collar; 24 in. round valve box pad, as SIGMA lists them. For the material, ask your regional team
Valve markers	5 ft, marked W VALVE, W LINE or SEWER, as SIGMA lists them

Ordering

Pricing	By request. Add items to your quote list or ask your regional team

From the Extended Products price catalog (rev. 7/29/26) and the valve operating wrenches spec sheet (August 2016).

Every size and item numberItem numbers by size

The sizes that come with the choices picked above. Pick a size to load it.

Valve keys, extensions, pads and markers: item numbers by size
Size	Item #	Weight (lb)
	GVKCE-10
	GVKCE-20
	GVKCE-30
	GVKCE-40
	GVKCE-50
	GVKCE-60
	GVKCE-70
	GVKCE-80

Item numbers from the Extended Products price catalog (rev. 7/29/26), which is not posted online. These items are priced by request.

Questions and answers4 questions buyers ask about valve wrenches and tools

How are these items priced?

Valve keys, extensions, pads and markers are priced by request. Add items to your quote list, ask your regional team, or call 800.999.2550 with the item numbers. SIGMA sells through waterworks distributors, and your distributor sets your price.

Which key length?

Use a key that reaches the operating nut from the surface. SIGMA lists heavy duty gate valve keys in 4, 5, 6 and 8 ft, and curb keys in 4, 5 and 6 ft.

What is a gate valve extension?

Per the valve wrench spec sheet, it has a solid steel 1 in. shaft and a 2 in. top nut, fits a 2 in. operating nut and has a centering ring on top. The price list carries 1 to 8 ft.

Which valve box pad?

SIGMA lists a 14 in. round pad with a 6 in. hole, a 24 in. round pad with a 10 in. hole, a 24 in. square valve box collar and a 24 in. round valve box pad. Match the pad to the valve box. For the material, ask your regional team.