710-511 Robertshaw Gas Valve – 7000MVRB-4-LC Millivolt, Low Capacity
The 710-511 Robertshaw 7000MVRB-4-LC Gas Valve is a compact, millivolt, low-capacity gas control engineered for fireplace log control systems and other low-BTU heating applications. Designed for tight installations, this valve delivers dependable performance with Hi-Lo adjustable outlet pressure and multi-position mounting.
Built on the proven 710 Series Low Capacity platform, this control features a quick drop-out safety magnet to meet Canadian specifications when used with compatible pilot assemblies.
✅ Key Features
-
✅ Millivolt low-capacity gas control valve
-
✅ Hi-Lo adjustable outlet pressure
-
✅ Supports Natural Gas and LP Gas
-
✅ Maximum inlet pressure: 1/2 PSI
-
✅ Compact body for limited-space installations
-
✅ Gas cock dial marked OFF – PILOT – ON
-
✅ Mounts in any position
-
✅ Inlet screen protects against debris
-
✅ Quick drop-out safety magnet (CSA compliant)
-
✅ RoHS compliant construction
📋 Specifications
| Specification | Details |
|---|
| Part Number |
710-511 |
| Factory Model |
7000MVRB-4-LC |
| Series |
710 Series – Low Capacity |
| Brand |
Robertshaw |
| Application |
Fireplace Log Control |
| Gas Types |
Natural Gas, LP, Manufactured, Mixed, LP/Air |
| Maximum Capacity |
70,000 BTU (Natural Gas) / 112,000 BTU (LP Gas) |
| Pressure Regulation |
Hi-Lo Adjustable |
| Outlet Pressure Range |
1.7" – 3.5" WC (Natural Gas) |
| Maximum Inlet Pressure |
1/2 PSI (14" WC) |
| Electrical Rating |
250 mV – 750 mV |
| Inlet Size |
1/2" NPT |
| Outlet Size |
3/8" Straight-Thru |
| Pilot Outlet |
1/4" Tubing |
| Ambient Temperature Range |
-40°F to 175°F |
| Mounting Orientation |
Any Position |
| Dimensions (H × L × W) |
3-13/16" × 4-21/32" × 1-29/32" |
⚠️ Common Symptoms Indicating Replacement
-
Pilot lights but main burner does not activate
-
Valve will not stay open
-
Inconsistent flame height or poor modulation
-
Intermittent heating operation
-
Physical wear or internal sticking of valve components
❓ Frequently Asked Questions (FAQ)
Q: Is this valve compatible with millivolt systems?
A: Yes. It operates on 250–750 millivolts, making it ideal for millivolt fireplace applications.
Q: Can this gas valve be mounted horizontally or vertically?
A: Yes. The valve is multi-positional and may be mounted in any orientation.
Q: What is the maximum inlet gas pressure?
A: The maximum inlet pressure is 1/2 PSI (14" WC).
Q: Does this valve support LP gas?
A: Yes. It supports LP gas up to 112,000 BTU.
🛒 Shopping Tips
-
Confirm your system uses a millivolt control (no external power).
-
Verify gas type before installation.
-
Ensure total BTU demand does not exceed valve capacity.
-
Inspect pilot tubing and fittings during replacement.
