Manual

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11 • Model G20 Metallic
g20mdl1sm-rev0614
Gas Distribution Valve Assembly
ATEX Compliant
Valve Assembly for Aluminum Mid Sections
Natural Gas Assembly Parts List
Item Part Number Description Qty
1 031-183-000 Gas Valve Assembly 1
1-A 095-109-157 Valve Body 1
1-B 031-139-000 Sleeve and Spool Set 1
1-C 132-029-357 Bumper 2
1-D 560-020-360 O-Ring 10
1-E 165-127-157 Cap, End 2
1-F 170-032-330 Capscrew 8
Item Part Number Description Qty
1 031-183-363 Gas Valve Assembly (FKM) 1
1-D 560-020-363 O-Ring (FKM) 10
(includes all other items used on 031-183-000)
Valve Assembly for Stainless Steel Mid Sections
Natural Gas Assembly Parts List
Item Part Number Description Qty
1 031-179-000 Gas Valve Assembly 1
1-A 095-109-110 Valve Body 1
1-B 031-139-000 Sleeve and Spool Set 1
1-C 132-029-357 Bumper 2
1-D 560-020-360 O-Ring 10
1-E 165-127-110 Cap, End 2
1-F 170-032-115 Capscrew 8
170-032-110 3/16" Stainless Steel Option 8
Item Part Number Description Qty
1 031-179-363 Gas Valve Assembly (FKM) 1
1-D 560-020-363 O-Ring (FKM) 10
(includes all other items used on 031-179-000)
1-A
1-B
1-B
1-C
1-D
1-D
1-E
1-E
1-F
1-F
1-D
1-C
1-B
1-A
1-B
1-F
1-F
1-E
1-E
1-C
1-C
1-D
1-D
1-D
Gas Distribution Valve Servicing
Step 1: Remove cap screws (1-F).
Step 2: Remove end cap (1-E) and bumper (1-C).
Step 3: Remove spool part of (1-B) (caution: do not scratch).
Step 4: Press sleeve (1-B) from body (1-A).
Step 5: Inspect O-Ring (1-D) and replace if necessary.
Step 6: Lightly lubricate O-Rings (1-D).
Step 7: Press sleeve (1-B) into body (1-A).
Step 8: Reassemble in reverse order, starting with step 3.
Note: Sleeve and spool (1-B) set is match ground to a specied clearance
sleeve and spools (1-B) cannot be interchanged.
IMPORTANT
Read these instructions completely, before installation
and start-up. It is the responsibility of the purchaser
to retain this manual for reference. Failure to comply
with the recommendations stated in this manual will
damage the pump, and void factory warranty.
MODEL SPECIFIC
4: AIR END